liquid ring pump
liquid ring pump
liquid ring pump
liquid ring pump
liquid ring pump

Stainless Steel hygienic Return CIP liquid ring close coupled Self Priming Pump

JN-SPP-1001-11
Size: DN25–DN100.
Grade: SS304/SS316L.
Standard: DIN, SMS, 3A.
Working pressure: 0.6–1.6 MPa.
Test pressure: 2.4 MPa.
Temperature Range: -20°C to 180°C.
PTFE seals: excellent chemical resistance.
Viton seals: high-temperature sealing durability.
Quantity:
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Stainless Steel hygienic Return CIP liquid ring close coupled Self Priming Pump
 

TheStainless Steel Return CIP Pump hygienic pump liquid ring pump  with 90° universal inlet/outlet is a sanitary conveying equipment made of 304/316L stainless steel. The 90° universal ports adapt to various piping layouts. It is installed at low‑level suction points or CIP return sections in clean pipelines for food, pharmaceutical, and other applications, used for self‑priming conveying of low‑viscosity fluids containing air or foam. It can draw materials below liquid level without the need for priming.

Connection types include tri‑clamp, flange, and threaded. Seals include single/double mechanical seals and food‑grade EPDM/PTFE gaskets.Drive options include standard motors, explosion‑proof motors, and variable frequency drives. It is widely used in food & beverage, pharmaceutical, and daily chemical industries, meeting the clean conveying requirements for dairy, pharmaceutical liquids, daily chemical raw materials, and CIP cleaning return, complying with GMP/FDA hygienic standards.

TheStainless Steel hygienic Return CIP liquid ring close coupled Self Priming Pump to rotate at high speed, creating a vacuum negative pressure in the pump chamber. With its self‑priming capability, the pump draws low‑viscosity, air‑containing or foamy fluids from pipelines through the 90° universal inlet without the need for priming. It is suitable forsuction conditions involving low liquid levels, fluctuating levels, or air‑entrained materials. The fluid is pressurized by the centrifugal force of the impeller and is then steadily delivered downstream through the universal outlet. The equipment features a 304/316L stainless steel hygienic construction with mirror‑polished internal surfaces, leaving no hygienic dead legs. It is equipped with food‑grade mechanical seals that isolate the media from the motor. The universal ports flexibly adapt to various piping layouts, perfectly meeting the self‑priming conveying and CIP cleaning return requirements of clean pipelines in food and pharmaceutical applications, fully complying with GMP/FDA hygienic standards.

 

Accessories

 Component & Material Table
  • Body Material：Wetted parts made of 304/316L stainless steel;non-wetted parts optional cast aluminum / stainless steelcoated
  • Impeller Material：304/316L stainless steel, polished surface Ras0.8um
  • Seal Material：Sanitary EPDM/PTFE/silicone (for food/pharmaceuticalmedia, temperature range -20°C~150°C)
  • Shaft Material：304/316L stainless steel, chrome-plated surface,wear-resistant and corrosion-proof
Product Parameter Details
  • Structure Type：Vertical / Horizontal self-priming centrifugal pump, 90°universal rotatable inlet/outlet, single-stage single-suction
    cantilever sanitary design
  • Pressure Range：Standard working pressure S1.6 MPa (customizable up to2.5 MPa), self-priming height >5 m (for low-viscosity
    media)
  • Main Function：Self-priming conveying of low-viscosity, air-containing orfoamy clean fluids; suitable for CIP in-place cleaningreturn; flexible pipeline angle adjustment for materialsuction and conveying
  • Applicable Grade：Flow direction switching, media merging, fluid diversion; on-off control for hygienic pipelines
  • Standards：Complies with GB/T 12220, HG/T 20571 sanitarystandards; materials and interfaces meet FDA and GMPspecifications
  • Hygiene & Safety Level：Standards: DIN (German), SMS (Swedish), 3A (American), ISO (international); Size range: 1/2"–4"
  • Certification Grade：Grade I sanitary; dead-leg-free design throughout; meetsfood/pharmaceutical industry safety operation standards;explosion-proof rating Ex d IIB T4 optional (for explosiveconditions)
  • Installation Orientation：Vertical or horizontal; 90° universal inlet/outlet rotatable360° to suit different piping layouts
  • Customization：Customizable flow rate / head parameters, material(304/316L), interface type, explosion-proof configuration,and temperature control components

Digital advantages

  • All wetted parts are made of 100% virgin 304/316L stainless steel, with internal mirror polishing up to Ra≤0.8μm, FDA/GMP internationally certified. Rated working pressure 1.6 MPa, self‑priming height up to 5 m, zero media contamination risk. Fully compliant with export hygienic standards for food and pharmaceutical industries, ensuring safe conveying of clean fluids.

  • Innovative 90° 360° universal inlet/outlet design, compatible with three connection types: tri‑clamp, flange, and thread. Flexibly adapts to complex piping layouts, improving on‑site installation and commissioning efficiency by 30%, significantly reducing rework costs. Shortens project cycles and reduces overall equipment investment costs for B2B buyers.

  • Equipped with food‑grade EPDM/PTFE double mechanical seals, temperature range -20℃~150℃. Zero‑leakage sealing structure, tested service life exceeding 15,000 hours. Supports CIP/SIP in‑place cleaning, reducing maintenance frequency and downtime costs, ensuring continuous and stable production line operation.

  • Full CNC precision machining and integral casting construction. Flow range 1~50 m³/h, head 5~50 m customizable. Optional explosion‑proof / variable frequency motors, explosion‑proof rating Ex d IIB T4. Suitable for various industry applications including food, pharmaceutical, and daily chemical, improving system operational stability and automation level.

  • Products are certified with ISO 9001 quality system, CE, and other international export certifications. Each unit undergoes full pressure and performance testing before delivery. Provides 12‑month warranty and complete technical documentation. Global after‑sales support ensures smooth implementation, reducing buyers' export customs clearance risks and after‑sales maintenance concerns.

Stainless Steel hygienic Return CIP liquid ring close coupled Self Priming Pump
 
Feature (F)、Advantage (A)、Benefit (B)
  1. Raw Material:
  • (F): Body made of 100% virgin 304/316L stainless steel; seals made of food-grade EPDM/PTFE
    (A): Excellent corrosion resistance, no media contamination, fully compliant with food and pharmaceutical GMP/FDA hygienic standards
     (B):Ensures safe conveying of clean materials such as dairy and pharmaceutical liquids, completely eliminating media contamination risks, meeting high-hygiene requirements
  1. Processing Technology:
  • (F):Full CNC precision machining, integral casting, internal mirror polishing (Ras0.8um), no sterilize
    (A):No media residue, high structural strength, stable dimensional accuracy, easy to clean and
    (B):Reduces pipeline pressure loss, ensures stable fluid conveying, supports CIP/SIP in-place cleaning, meets aseptic production requirements
  1. Structure Feature:
  • (F):90° universal rotatable inlet/outlet, single-stage single-suction self-priming structure, sanitary tri-clamp / flange connections
    (A):Self-priming without priming, flexibly adapts to various piping layouts, easy installation, excellent sealing performance
    (B): Reduces installation and commissioning time; suitable for low-level, fluctuating liquid level,and air-entrained material suction; lowers operating and maintenance costs
  1. Core Accessory Feature:
  •  (F): Sanitary single/double mechanical seals, food-grade EPDM/PTFE seals, wide temperature range
     (A):Zero-leakage sealing, resistant to high/low temperatures and chemical corrosion, long service life
     (B): Suitable for -20°C~150°C working environments; prevents media leakage; avoids seal aging failure; ensures production continuity 
  1. Seal Ring Feature:
  • (F):Compatible with standard / explosion-proof /variable frequency motors; full stainless steel protective casing; customizable flow rate and head
    (A):High protection class; explosion-proof safety; precise flow adjustment; adaptable to various working conditions
    (B):Meets special requirements such as humid environments in food plants and explosion-proof needs in chemical applications; improves system operational stability; extends equipment service life
 
Stainless Steel hygienic Return CIP liquid ring close coupled Self Priming Pump
 
Maximum Flow Rate：1~50 m2/h (Customizable up to 100 m2/h)
Maximum Pressure：1.6 MPa (Customizable up to 2.5 MPa)
Max Speed：2900 rpm (1450 rpm optional)
Connection Type：Tri-Clamp (Sanitary Quick-fit), Flange, Thread (Customizable)
Body Types：Horizontal / Vertical Self-priming Centrifugal Pump
Max Temperature：-20°C ~ 150°C (High-temperature version up to 180°C)
Surface Treatment：Mirror Polishing (Ra ≤ 0.8um) / Pickling Passivation
 
 
 
 

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