Gear & Lobe Pumps — Saudi Arabia

Gear & Lobe Pumps Supplier Saudi Arabia — External Gear, Internal Gear, Rotary Lobe & Circumferential Piston Pumps In Stock

Gulf Union Ozone supplies a complete range of rotary positive displacement pumps for viscous liquid transfer, metering, lubrication, hygienic food-grade, and industrial process duties across Saudi Arabia. Our portfolio covers external gear pumps (precision, high pressure, lube oil — pressures to 200 bar), internal gear and gerotor pumps (chocolate, honey, heavy fuel oil, bitumen), rotary lobe pumps (food grade, hygienic CIP-able, EN 1672-2, EHEDG, 3-A Sanitary), circumferential piston pumps (viscous polymers, rubber compounds), two-screw and three-screw pumps (high pressure, low pulsation), and progressive cavity single-screw pumps (slurries, high viscosity, pastes). Standards: API 676, ISO 2943, ATEX II 2G Zone 1/2. Materials: cast iron GG25, SS 316L, hardened steel, hard-coat aluminium, Hastelloy C-276. Viscosity range 1 cSt to 1,000,000 cSt; flow 0.1–500 m³/h; pressures to 200 bar. API 682 mechanical seals available for Saudi Aramco and SABIC projects. ISO 9001:2015 certified (CR 4030570569). SASO. Stocked and dispatched from Jeddah.

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Gear and lobe pumps — external gear, internal gear, rotary lobe and circumferential piston pumps for Saudi Arabia — Gulf Union Ozone Jeddah
StandardsAPI 676 · ISO 2943 · EN 1672-2 · EHEDG · ATEX II 2G Zone 1/2 · API 682 Seals
MaterialsCast Iron GG25 · SS 316L · Hardened Steel · Hastelloy C-276 · PVDF · Hard-Coat Aluminium
RangeFlow 0.1–500 m³/h · Pressure to 200 bar · Viscosity 1 cSt to 1,000,000 cSt
QualityISO 9001:2015 · SASO · Jeddah Warehouse · CR 4030570569
Gear & Lobe Pump Categories

Product Types in Stock

Gulf Union Ozone carries six rotary positive displacement pump families — from precision high-pressure external gear pumps to hygienic EHEDG-certified lobe pumps — to internationally recognised API, ISO, ATEX, and EN standards, with full material traceability and documentation for every supply into Saudi Arabia oil & gas, food, pharmaceutical, and industrial process projects.

Type 01

External Gear Pump (Precision, High Pressure, Lube Oil)

Precision external spur gear pumps for high-pressure viscous liquid transfer, lubrication system circulation, fuel oil transfer, and hydraulic fluid supply in Saudi Arabia oil & gas, power generation, and industrial facilities. Available in cast iron GG25 for general-duty fuel and lube oil service; SS 316L for corrosive or food-adjacent applications; hardened steel gears for high-pressure duty. Pressure ratings to 200 bar (high-pressure models); lower-pressure general-duty models to 25 bar. Flow range 0.1–200 m³/h across the full size range. Self-priming to 8 m; handles viscosities from 1 cSt to 100,000 cSt without performance degradation. Integral or external pressure relief valve standard. Available with jacketed casing for heated service (bitumen, HFO, wax). ATEX II 2G Zone 1 certified versions available for lube oil transfer in classified areas of Saudi Aramco refineries and gas processing plants. API 676 documentation and API 682 mechanical seals available for EPC projects. Shaft seal options: packing, single mechanical seal, double mechanical seal with barrier fluid. ISO 9001:2015 certified, Jeddah stock.

Type 02

Internal Gear / Gerotor Pump (Smooth Flow, Viscous)

Internal gear and gerotor pumps delivering exceptionally smooth, low-pulsation flow for viscous, shear-sensitive, and high-temperature liquids in Saudi Arabia food, chemical, and process industry applications. Internal gear configuration with an outer ring gear meshing with an inner rotor generates gentler fluid handling than external gear types — ideal for chocolate, honey, glucose syrup, glycerine, resins, adhesives, and polymer solutions where pulsation or shear would degrade product quality. Cast iron body for HFO, bitumen, and crude oil transfer; SS 316L for food and chemical service; hardened steel rotor/ring for abrasive or highly viscous duty. Jacketed body and port blocks available for heated service of wax, bitumen, and heavy fuel oil requiring temperatures up to 250°C. Viscosity range 1 cSt to 1,000,000 cSt; pressures to 25 bar; flow 0.1–100 m³/h. Self-priming from dry at moderate viscosities. PTFE or PEEK shaft seals for chemical compatibility; packed gland for high-temperature service. Flanged or NPT/BSP ported configurations. Jeddah stock; API 676 documentation for process plant applications.

Type 03

Rotary Lobe Pump (Hygienic, CIP, Food Grade)

Hygienic rotary lobe pumps to EN 1672-2 (food machinery hygiene requirements) and EHEDG-certified for food, beverage, dairy, pharmaceutical, and cosmetic liquid transfer in Saudi Arabia. The counter-rotating lobes (bi-wing, tri-wing, or four-wing profile) create a smooth, non-pulsating, gentle positive displacement flow with no metal-to-metal contact between lobes — eliminating shear damage to emulsions, cell cultures, and structured food products. Wetted body and cover in electropolished SS 316L (Ra ≤ 0.8 µm standard; Ra ≤ 0.4 µm for pharmaceutical); rotor lobes in food-grade EPDM (red or black), silicone, or PTFE. Connections: DIN 11851, RJT, IDF, or SMS hygienic unions; Tri-Clamp (DIN 32676 / ISO 2852) on all hygienic variants. Full CIP (clean-in-place) capability — cleaned in-situ with hot water, NaOH caustic, and acid cycles without pump disassembly. SIP (sterilise-in-place) with steam to 130°C on pharmaceutical-grade models. Mechanical seal: single seal SiC/SiC or hard carbon/SiC; double seal with sterile water or CIP flush available. Flow 0.1–150 m³/h; pressure to 15 bar; viscosity to 1,000,000 cSt with appropriate speed reduction. Suitable for dairy, fruit juices, sauces, pharmaceutical APIs, cosmetic creams. SFDA-compliant material certificates supplied. Jeddah stock.

Type 04

Three-Screw Pump (High Pressure, Low Pulsation)

Three-screw (triple-screw) positive displacement pumps for high-pressure, low-pulsation transfer of clean, non-abrasive lubricating liquids in Saudi Arabia oil & gas lubrication systems, hydraulic power units, fuel burner supply systems, and offshore platform lube oil circulation. The helical screw profile generates essentially pulsation-free flow — noise level and vibration significantly lower than gear pumps at comparable flow and pressure — making three-screw pumps the preferred choice for lube oil systems where pressure pulsation causes instrument noise or burner flame instability. Screws in hardened alloy steel, nitride-treated for extended service life; cast iron or alloy steel casing; SS 316L casing available for low-lubricity or mildly corrosive fluid service. Pressure to 160 bar (standard) and to 280 bar (high-pressure models); flow 0.1–300 m³/h; viscosity 1–3,000 cSt. Inlet suction from reservoir with flooded suction preferred; NPSH requirements must be checked at high viscosity. ATEX Zone 1 and Zone 2 options. API 676 documentation and API 682 mechanical seals available for Saudi Aramco process plant lube oil system procurement. Two-screw variants (twin-screw) for larger flow and lower differential pressure — suitable for crude oil cargo pumping and fuel oil circulation in marine and terminal applications across Saudi Arabia.

Type 05

Progressive Cavity / Single Screw Pump (Slurries, High Viscosity)

Progressive cavity pumps (also known as single-screw or Moineau-principle pumps) for transfer of viscous, non-Newtonian, shear-sensitive, and solids-bearing fluids in Saudi Arabia oil & gas, wastewater, food, and chemical process applications. A helical single-rotor rotating inside a double-helical stator creates a series of sealed cavities that progress from inlet to outlet, generating smooth, pulsation-free flow proportional to speed. Handles fluids from 1 cSt to several million cSt; solids content to 70% by volume; solids particle sizes to 40mm depending on stator cavity size. Rotor in hardened SS 316L or chrome-plated steel; stator in NBR, EPDM, FKM (Viton), or Neoprene elastomer depending on chemical compatibility — stator selection is the key material decision. Flow 0.1–300 m³/h at differential pressures to 48 bar (multi-stage) per pump. Variable speed operation via VFD for flow metering and dosing. Flush and barrier seal options for clean or hazardous fluids. ATEX Zone 1 certified for solvent-bearing slurries. Applications in Saudi Arabia: sewage sludge transfer, crude oil with sand, polymer slurries, drilling mud, food pastes (tomato paste, meat slurry), and pharmaceutical creams. Stator spare kits stocked in Jeddah.

Type 06

Circumferential Piston Pump (Polymers, Rubber Compounds)

Circumferential piston (impeller) pumps — also called flexible impeller or circumferential piston type — for gentle, low-shear transfer of extremely viscous polymers, rubber compounds, adhesives, sealants, and structured liquids in Saudi Arabia petrochemical and specialty chemical manufacturing. The circumferential piston design uses intermeshing timed rotors with piston-like profiles that sweep the casing bore, generating positive displacement flow with very large trapped volume per revolution — enabling handling of highly viscous media to several million cSt that would cause excessive torque in a gear pump. SS 316L body and rotor as standard; available in Hastelloy C-276 for corrosive polymer solutions containing halides, acids, or aggressive solvents. Heated (jacketed) body and rotor covers standard for handling thermoplastic polymers above their melt temperature. Flow 0.1–50 m³/h; pressure to 25 bar; viscosity up to several million cSt. Low NPSH requirement — suitable for gravity-fed transfer from mixer or reactor discharge nozzles. Close-clearance rotor timing prevents metal-to-metal contact, making the pump re-priming safe and avoiding seizure on product solidification. API 676 documentation for Saudi Aramco polymer plant project procurement. ATEX classification available for solvent-containing polymer compound service.

Product Catalog

Complete Gear & Lobe Pumps Range — 27+ Products

All rotary positive displacement pumps supplied with factory test certificate, dimensional inspection record, and pressure test certificate. API 676 documentation, EN 10204 3.1 MTCs, and API 682 seal documentation available on request. ISO 9001:2015 QMS (CR 4030570569).

Grade / Type Flow Range / Pressure Viscosity / Standard Material / Drive Type Application
External Gear Pump — Precision, SS 316L, Small Flow Flow 0.1–10 m³/h / Pressure to 25 bar / Port ½"–1" BSP ISO 2943 / API 676 / Viscosity 1–50,000 cSt / -20°C to 200°C SS 316L body & gears; PTFE seal; direct or flexible coupling drive Chemical dosing, lube oil metering, additive blending — Saudi process plant
External Gear Pump — Cast Iron, Medium Flow, Lube Oil Flow 5–80 m³/h / Pressure to 25 bar / Port 1"–3" flanged ISO 2943 / API 676 / Viscosity 10–100,000 cSt / to 150°C Cast iron GG25 body; hardened spur gears; mechanical seal; direct drive Lube oil circulation, fuel oil transfer, diesel day tank supply — Saudi industry
External Gear Pump — High Pressure (to 200 bar), Lube System Flow 0.5–30 m³/h / Pressure 25–200 bar / Port 1"–2" flanged API 676 / ISO 2943 / Viscosity 10–3,000 cSt / -20°C to 180°C Hardened steel body; precision nitride gears; balanced bushing; mechanical seal High-pressure lube oil injection, hydraulic supply, seal oil — Saudi Aramco refinery
External Gear Pump — Hastelloy C-276, Corrosive Duty Flow 0.5–20 m³/h / Pressure to 25 bar / Port ½"–2" flanged API 676 / NACE MR0175 option / Viscosity 1–10,000 cSt / to 200°C Hastelloy C-276 body & gears; PTFE seal; ATEX option Zone 1 HCl, HF, chlorinated solvent, corrosive chemical transfer — Saudi chemical plant
External Gear Pump — ATEX Zone 1, Fuel & Solvent Transfer Flow 1–60 m³/h / Pressure to 25 bar / Port 1"–3" flanged ATEX II 2G Ex-d / API 676 / Viscosity 1–50,000 cSt / to 150°C Cast iron or SS 316L body; hardened gears; double mechanical seal; ATEX motor Classified area fuel oil transfer, solvent pump — Zone 1 refinery or terminal KSA
External Gear Pump — Jacketed, Bitumen / Heavy Fuel Oil Flow 2–100 m³/h / Pressure to 20 bar / Port 1"–4" flanged ISO 2943 / API 676 / Viscosity 1,000–1,000,000 cSt / to 250°C Cast iron jacketed body & port blocks; hardened gears; packed or mech seal Bitumen transfer, HFO burner supply, wax and asphalt transfer — Saudi Arabia
Internal Gear Pump — SS 316L, Smooth Flow, Medium Viscosity Flow 0.5–40 m³/h / Pressure to 20 bar / Port ½"–2" flanged ISO 2943 / API 676 / Viscosity 1–100,000 cSt / -20°C to 200°C SS 316L body, ring gear & rotor; PTFE idler pin; mechanical seal or packed Chocolate, glucose syrup, resin, adhesive transfer — Saudi food & chemical plant
Internal Gear Pump — Cast Iron, Jacketed, HFO / Bitumen Flow 1–100 m³/h / Pressure to 15 bar / Port 1"–4" flanged ISO 2943 / Viscosity 10,000–1,000,000 cSt / 80°C to 250°C steam-jacketed Cast iron jacketed body; hardened ring gear; packed gland; direct drive Heavy fuel oil, bitumen, tar, pitch transfer at elevated temperature — Saudi Arabia
Gerotor Pump — Compact, SS 316L, Low Flow Metering Flow 0.1–5 m³/h / Pressure to 15 bar / Port ½"–1" BSP or NPT ISO 2943 / Viscosity 1–10,000 cSt / -30°C to 150°C SS 316L gerotor set; SS 316L body; PTFE seal; close-coupled or bare shaft Lube oil metering, proportioning, small chemical transfer — OEM and plant duty
Rotary Lobe Pump — Hygienic SS 316L, Small (EHEDG, 3-A) Flow 0.1–15 m³/h / Pressure to 10 bar / Tri-Clamp DN 25–50 EN 1672-2 / EHEDG / 3-A / FDA 21 CFR / Ra ≤ 0.8 µm / CIP ready SS 316L body & cover; EPDM or silicone bi-wing lobes; SiC/SiC mechanical seal Dairy, pharmaceutical API, cosmetic cream, juice transfer — Saudi food & pharma
Rotary Lobe Pump — Hygienic SS 316L, Medium (EHEDG, CIP/SIP) Flow 5–60 m³/h / Pressure to 12 bar / Tri-Clamp DN 50–100 EN 1672-2 / EHEDG / 3-A / FDA 21 CFR / SIP to 130°C / Ra ≤ 0.8 µm SS 316L electropolished body; tri-lobe EPDM rotors; double seal with CIP flush Beverage, dairy, biotech product transfer and CIP return — Saudi food industry
Rotary Lobe Pump — Hygienic SS 316L, Large, High Flow Flow 30–150 m³/h / Pressure to 10 bar / Flanged DN 100–150 EN 1672-2 / EHEDG / Ra ≤ 0.8 µm / CIP-able / Viscosity to 500,000 cSt SS 316L body; four-wing or bi-wing lobes; EPDM or PTFE; VFD compatible Large dairy, sauce, honey, sugar syrup, tomato paste transfer — Saudi Arabia
Rotary Lobe Pump — Industrial Cast Iron, Process Duty Flow 5–200 m³/h / Pressure to 15 bar / Flanged DN 50–150 API 676 / Viscosity 10–1,000,000 cSt / -10°C to 180°C Cast iron GG25 body; cast iron lobes with NBR or Viton; mechanical seal Industrial paint, adhesive, polymer latex, resin transfer — Saudi chemical plant
Rotary Lobe Pump — PVDF, Chemical / Acid Duty Flow 0.5–20 m³/h / Pressure to 8 bar / Port ½"–2" flanged ISO 2943 / Viscosity 1–10,000 cSt / 0°C to 100°C PVDF body & lobes; PTFE seals; SS 316L shaft; no metal contact with fluid HCl, H2SO4, NaOH, bleach, aggressive chemical transfer — Saudi water treatment
Circumferential Piston Pump — SS 316L, Polymers / Rubber Flow 0.5–30 m³/h / Pressure to 20 bar / Port 1"–4" flanged API 676 / Viscosity to several million cSt / 0°C to 250°C (jacketed) SS 316L or Hastelloy C-276 body & rotors; timed rotors; jacketed body option Synthetic rubber compound, polymer melt, adhesive transfer — SABIC polymer plants
Three-Screw Pump — Lube Oil, Low Pulsation Flow 0.5–150 m³/h / Pressure to 160 bar / Port ½"–4" flanged API 676 / Viscosity 2–3,000 cSt / -20°C to 150°C Alloy steel screws (nitrided); cast iron or alloy steel casing; mechanical seal Main lube oil pump, burner fuel oil, hydraulic supply — Saudi Aramco facility
Three-Screw Pump — High Pressure (to 280 bar), Hydraulic Flow 0.1–50 m³/h / Pressure 160–280 bar / Port ½"–2" flanged API 676 / ISO 2943 / Viscosity 10–500 cSt / to 100°C High-alloy steel precision screws; alloy steel casing; mechanical face seal High-pressure hydraulic power supply, control oil — offshore, refinery KSA
Two-Screw Pump — Large Flow, Crude Oil / Product Transfer Flow 10–500 m³/h / Pressure to 30 bar / Flanged DN 50–300 API 676 / Viscosity 1–100,000 cSt / -40°C to 200°C Cast iron or SS 316L casing; timing gears; double mechanical seal; ATEX option Crude oil cargo pump, fuel transfer, terminal loading — Saudi Aramco terminals
Progressive Cavity Pump — Cast Iron / SS 316L, Slurry Duty Flow 0.5–100 m³/h / Pressure to 24 bar / Port 1"–4" flanged ISO 15136 / Viscosity 1–1,000,000 cSt / Solids to 40mm / to 150°C SS 316L rotor; NBR or EPDM stator; open hopper or closed inlet; VFD compatible Sewage sludge, drilling mud, food pastes, polymer slurry — Saudi Arabia
Progressive Cavity Pump — SS 316L, Food Grade / Pharmaceutical Flow 0.1–30 m³/h / Pressure to 24 bar / Hygienic Tri-Clamp port EN 1672-2 / EHEDG / FDA / Ra ≤ 0.8 µm / CIP capable / to 130°C SIP SS 316L electropolished rotor; food-grade EPDM or silicone stator; SiC seal Tomato paste, meat slurry, pharma cream, high-viscosity food product — Saudi
Progressive Cavity Pump — ATEX Zone 1, Chemical Slurry Flow 0.5–60 m³/h / Pressure to 24 bar / Flanged DN 25–100 ATEX II 2G Ex-d / ISO 15136 / Viscosity 1–500,000 cSt / to 100°C SS 316L rotor; FKM (Viton) stator; ATEX motor; double mechanical seal Catalyst slurry, solvent-bearing paste, ATEX Zone 1 chemical transfer — KSA
Gear Pump — NACE MR0175, Sour Service (H2S) Flow 1–50 m³/h / Pressure to 25 bar / Flanged ASME 150#–600# API 676 / NACE MR0175 / ISO 15156 / Viscosity 1–10,000 cSt SS 316L body; hardened low-alloy NACE compliant gears; PTFE seal; H2S service Sour crude oil lube, amine solution, sour condensate transfer — Saudi Aramco
Gear Pump — High Temperature, Thermal Oil / Hot Oil Flow 2–80 m³/h / Pressure to 20 bar / Flanged DN 40–150 ISO 2943 / API 676 / Temperature to 350°C / Viscosity 2–500 cSt Alloy cast iron body; case-hardened gears; high-temp mechanical seal; packed gland option Thermal oil (hot oil) circulation pump — Saudi Arabia process heat systems
Gear Pump — Metering / Proportioning Type (VFD Driven) Flow 0.01–5 m³/h / Pressure to 20 bar / Port ¼"–1" NPT ISO 2943 / Viscosity 1–100,000 cSt / VFD controlled / calibrated flow SS 316L or PVDF body; precision close-tolerance gears; PTFE seal; VFD motor Additive metering, polymer injection, colour dosing — Saudi Arabia process plant
Gear Pump — Fuel Oil Transfer (Diesel / HFO), Cast Iron Flow 1–100 m³/h / Pressure to 20 bar / Flanged DN 25–100 ISO 2943 / Viscosity 2–180 cSt / to 120°C / ATEX option Zone 2 Cast iron body; hard-chrome spur gears; mechanical seal; relief valve integral Diesel and HFO fuel transfer, day tank supply, generator fuel system — Saudi Arabia
Lobe Pump — Sanitary Tri-Clamp, Pharmaceutical Grade (Ra ≤ 0.4 µm) Flow 0.1–30 m³/h / Pressure to 10 bar / Tri-Clamp DN 25–80 ASME BPE / EHEDG / FDA 21 CFR / Ra ≤ 0.4 µm / SIP to 134°C SS 316L electropolished Ra ≤ 0.4 µm; silicone lobes; double seal sterile barrier Pharmaceutical API, biotech fermentation broth, sterile product transfer — Saudi pharma
Gear Pump — API 676, MDR Package, EPC Projects Flow 1–200 m³/h / Pressure to 100 bar / ASME 150#–1500# flanged API 676 / API 682 seal / EN 10204 3.1 MTC / ITP / MDR / PMI SS 316L or alloy steel; API 682 Plan 11/21/52 seal; bearing monitoring option Process lube oil, seal oil, chemical injection — Saudi Aramco & SABIC EPC projects
Why Us

Why Industrial Buyers in Saudi Arabia Choose Gulf Union Ozone for Gear & Lobe Pumps

📄

API 676 Documentation for EPC Projects

All gear and lobe pumps available with full API 676 (Third Edition) documentation packages — API 676 data sheets, EN 10204 3.1 material test certificates, PMI on SS and alloy wetted parts, API 682 mechanical seal documentation (Plan 11/21/32/52), hydrostatic test certificates, and complete MDR packages for Saudi Aramco, SABIC, and EPC contractor project procurement requirements. ITP for third-party inspection available.

⚙

Widest Viscosity Range (1–1,000,000 cSt)

A single source covering the full viscosity spectrum: external gear pumps for lube oils (1–100,000 cSt), rotary lobe pumps for food-grade and high-viscosity (1–1,000,000 cSt), progressive cavity pumps for slurries and pastes, and circumferential piston pumps for polymer melts at extreme viscosity. Jacketed body options for heated service of bitumen, wax, and HFO. ATEX Zone 1/2 certified across all pump families.

🔥

ISO 9001:2015 Certified

Gulf Union Ozone is ISO 9001:2015 certified (CR 4030570569). Hygienic lobe pumps supplied with EHEDG certification, FDA 21 CFR material compliance declaration, surface finish measurement records (Ra ≤ 0.8 µm or ≤ 0.4 µm), and SFDA-compliant documentation for food and pharmaceutical buyers in Saudi Arabia. NACE MR0175 / ISO 15156 compliance available for sour service gear pumps.

🗺

Jeddah Stock & Saudi Nationwide Delivery

Key gear pump, lobe pump, and progressive cavity pump sizes stocked in Jeddah for immediate dispatch across all 18 Saudi regions — Jubail, Yanbu, Dammam, Riyadh, and beyond. Spare lobe sets, stator kits, and mechanical seals also stocked for rapid maintenance support. ISO 9001:2015 certified supply chain. WhatsApp 966550988062 for immediate stock confirmation and technical pump selection support.

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MRO

Lubricants & Greases

Industrial lubricating oils, gear oils, compressor oils, hydraulic fluids, and high-temperature greases for rotating equipment maintenance across Saudi Arabia oil & gas, power, and manufacturing facilities.
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Industrial Chemicals

Process chemicals, water treatment chemicals, cleaning agents, and specialty industrial chemicals for oil & gas, water treatment, food, and pharmaceutical manufacturing in Saudi Arabia. Jeddah stock.
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Industrial Valves

Gate, globe, check, ball, and butterfly valves in SS 316L, duplex SS, and carbon steel — API 600, API 602, ASME B16.34 — for oil & gas, petrochemical, and process industry pipeline systems in Saudi Arabia.
Frequently Asked Questions

Gear & Lobe Pumps in Saudi Arabia — Common Questions

When should I use a gear pump versus a centrifugal pump for viscous liquid transfer in Saudi Arabia?

The choice between a gear pump and a centrifugal pump for viscous liquid transfer in Saudi Arabia depends on three primary factors: liquid viscosity, pressure requirement, and shear sensitivity. Centrifugal pumps perform efficiently at low viscosities — generally below 200–400 cSt — because their impeller generates head through centrifugal velocity, which becomes increasingly inefficient as fluid viscosity rises. Above 200 cSt, centrifugal pump efficiency drops sharply, flow decreases, and absorbed power increases dramatically, making the centrifugal pump uneconomical and requiring significant oversizing. A gear pump is the correct selection for viscous liquids above 200 cSt: gear pumps are positive displacement devices that deliver flow strictly proportional to rotational speed regardless of viscosity, maintain rated flow and differential pressure up to 1,000,000 cSt, require far less installed power than an oversized centrifugal for thick media, and are fully self-priming from dry conditions. External gear pumps are preferred for clean, non-shear-sensitive viscous fluids such as lube oils, fuel oils, bitumen, resins, and industrial oils — delivering pressures to 200 bar for high-pressure lube oil injection duty. For shear-sensitive viscous products — chocolate, dairy cream, fruit concentrates, polymer latexes, and biological slurries — where the molecular structure must not be damaged by high shear forces, a rotary lobe pump or circumferential piston pump is preferred over an external gear pump, as the gentle counter-rotating lobe action minimises shear degradation of the product. Progressive cavity single-screw pumps cover viscous slurries containing suspended solids and paste-like media where lobe pumps would suffer excessive wear. Contact Gulf Union Ozone with your fluid viscosity in cSt at the pumping temperature, density, shear sensitivity, required flow in m³/h, and differential pressure for a matched pump type recommendation and hydraulic selection for your Saudi Arabia facility.

خلاصة القول

مضخات التروس والفصوص للسوائل اللزجة بترتيب إيجابي مع شهادات ATEX للمناطق المتفجرة

What rotary lobe pump standards apply for food and pharmaceutical applications in Saudi Arabia?

Rotary lobe pumps for food, beverage, dairy, and pharmaceutical applications in Saudi Arabia must comply with several international hygienic design and materials standards to meet Saudi Food and Drug Authority (SFDA) requirements and international customer specifications. The primary standards are EN 1672-2 (food machinery — hygiene requirements), EHEDG (European Hygienic Engineering and Design Group) guidelines for hygienic design of food industry equipment, and 3-A Sanitary Standard 02-12 (sanitary standards for sanitary positive rotary pumps). For pharmaceutical and biotechnology applications, additional requirements include ASME Bioprocessing Equipment (ASME BPE) standard covering surface finish specifications, drainability requirements, and CIP/SIP cleanability validation. FDA materials compliance requires all wetted metal surfaces to be SS 316L (AISI 316L, DIN 1.4404) with electropolished internal surface finish Ra ≤ 0.8 µm as standard (Ra ≤ 0.4 µm for pharmaceutical-grade), meeting FDA 21 CFR requirements for materials in contact with food and pharmaceutical products. Elastomer materials on rotor lobes and mechanical seals are food-grade EPDM (FDA compliant), silicone, or PTFE — selected based on the specific product chemistry, temperature, and CIP chemical compatibility. CIP (clean-in-place) capability is standard on all hygienic lobe pumps: the pump can be cleaned in-situ using hot water rinses, caustic NaOH (1–3% at 80°C), and acid CIP cycles without disassembly. SIP (sterilise-in-place) with saturated steam to 130°C is available on pharmaceutical-grade models with PTFE-lined body and EPDM or silicone rotors compatible with steam temperature. Gulf Union Ozone supplies EHEDG-certified rotary lobe pumps with full traceability documentation including EN 10204 3.1 material certificates, internal surface finish measurement records, FDA compliance declaration, and EHEDG certification for food and pharmaceutical facilities across Saudi Arabia, Jeddah, and Riyadh.

خلاصة القول

متطلبات مواد SAEP-347 لمضخات التروس والفصوص مع NACE MR0175 وشهادات EN 10204 3.1

Do you supply API 676 rotary positive displacement pumps for Saudi Aramco and SABIC projects?

Yes. Gulf Union Ozone supplies rotary positive displacement pumps designed and documented to API Standard 676 (Third Edition — Positive Displacement Pumps — Rotary) for Saudi Aramco, SABIC, Ma'aden, and EPC contractor projects in Saudi Arabia requiring formal API compliance. API 676 specifies the minimum requirements for external gear pumps, internal gear pumps, rotary lobe pumps, screw pumps, and circumferential piston pumps used in petroleum, petrochemical, and natural gas industry services. Key API 676 compliance requirements that Gulf Union Ozone can fulfil include: standard casing and bearing housing configurations to API 676 dimensional requirements, hydrostatic pressure testing of the casing to 1.5 times maximum allowable working pressure, gear and lobe material specifications including hardened steel gears and SS 316L wetted parts for corrosive services, and integral or external pressure relief valve sizing and certification. Mechanical seals are supplied to API Standard 682 (Shaft Sealing Systems for Centrifugal and Rotary Pumps) with seal support system Plans 11, 21, 32, or 52 as specified by the process licensor or owner-engineer. Bearing monitoring with vibration proximity probes compatible with API 670 machinery protection systems is available on larger process pumps. Full documentation package includes EN 10204 3.1 material test certificates for all pressure-containing components, Positive Material Identification (PMI) reports on all SS and alloy wetted metal parts, and a complete Manufacturer Data Report (MDR) package. Inspection and Test Plans (ITP) for third-party inspection witness by Saudi Aramco SAIC or SABIC inspection departments are available. Gulf Union Ozone can support API 676 Data Sheet completion, mechanical seal drawing review and approval, equipment nameplate and data book preparation, and pre-shipment inspection witness for major EPC projects throughout the Kingdom.

خلاصة القول

مضخات API 676 الإيجابية الدورانية بتدفق 5–2000 لتر/دقيقة وضغط حتى 25 بار مع خيارات الختم الميكانيكي

خلاصة القول

مخزون طوارئ لمضخات التروس والفصوص مع التسليم في نفس اليوم وقطع الغيار الكاملة

Get a Quote

Request a Gear & Lobe Pumps Quotation

To get a fast quotation, provide: pump type (external gear / internal gear / rotary lobe / screw / progressive cavity), fluid description (name, viscosity in cSt at pumping temperature, density, shear sensitivity, temperature), required flow rate (m³/h), differential pressure (bar), port size and flange standard (ASME or EN), seal type (single / double mechanical seal / packed), API 676 requirement (yes/no), ATEX classification (Zone 1 or Zone 2 if required), and delivery location in Saudi Arabia.

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Recent Deliveries

  • • API 676 external gear pumps (SS 316L, 50 m³/h) for crude oil transfer at a Jubail petroleum terminal, 2026
  • • Internal gear pumps for bitumen and heavy viscous product transfer at a Riyadh asphalt plant, 2026
  • • Hygienic rotary lobe pumps (EPDM lobes, SS 316L body, EHEDG) for food-grade liquid transfer at a Jeddah dairy, 2026

CR 4030570569 | ISO 9001:2015 | Jeddah, Saudi Arabia  —  Saudi Aramco vendor compliance · SAEP-347 credentials

Technical content reviewed by Gulf Union Ozone's Engineering Team, Jeddah — 2026

Inventory updated: September 2026