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Single – Screw Pump for High Viscosity, Pulsation-Free Transfer ー INP Series

＞ Pulsation-Free Transfer of High-Viscosity Fluids and Solids Without Damage

Single – Screw Pump

Also known as a “screw pump,” this is a positive displacement rotary pump. In theory, it can handle fluids up to 1,000,000 cP and transfer semi-solids without damage. It offers excellent metering performance and is available in sanitary designs.

See more in the catalog

＞Single – Screw Pump ー Key Features

This pump transfers liquid along the screw shaft by rotating a screw inside a sealed casing.

The wetted parts consist of a rotor (male screw) and a stator (female screw).

As the rotor turns inside the stator, it generates strong suction and moves fluids, including solids, to the discharge side.

Capable of transferring low-flowability fluids

  • Capable of transferring low-flowability fluids such as miso
  • Theoretically handles viscosities up to 1,000,000 cP

Capable of transferring sludge, toothpaste, small fish, and similar materials

  • Transfers fluids containing solids and fibers
  • Transfers liquids containing air bubbles

Accurate transfer without altering fluid quality

  • High metering accuracy due to positive displacement transfer
  • Transfers fluid pulsation-free without agitation

Catalog Download & Inquiries

Download(PDF)
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INP Series Single Screw Pump ー Specifications & Lineup

Main Applications:
Here is a summary of the main applications of the single screw pump, capable of transferring a wide variety of fluids not possible with other pumps.

【Low-viscosity fluid】
Sauces/Noodle Soup Base/Soy Milk/Bittern/Milk/Soy Sauce/Sake/ Juices/Beverages/Wine/Syrups/Jelly Liquid/Lotion/Paint
【High-Viscosity Fluid】
Starch syrup/Sweet Red Bean Paste/Jam/Starch Glue/Butter/Brewing Yeast/Cream/Toothpaste/Honey/Mayonnaise/Ketchup/Seaweed/Cosmetic Cream/Lipstick/Ointment/Glue/Adhesive
【Solids / Low-flowability fluids】
Activated sludge/Sludge/Dewatered cake/Floating scum/Digested sludge/Factory wastewater sediment/Meat sauce/ Salted fish guts/Corn soup/Jam with fruit pieces/Coleslaw/Bond sludge/Grated daikon radish/Curry roux/Fish paste/ Minced meat/Sake lees/Cream cheese/Powdered activated carbon/Slaked lime
【Corrosive fluids】
Caustic Soda/Solvent-containing fluids/Sulfuric Acid/Sodium Hypochlorite/Pulp Solution/Pulp Slurry/Coating Color/Surfactants
【Foaming fluids containing bubbles】
Beer/Whipped Cream/Custard Cream/Fresh Cream/Hair Gel/Surfactants/Foaming Facial Cleanser/Shampoo

Lineup

Small-capacity type: INP-PCD
ModelFlow rate (L/min) Pressure (MPa)Suction Inlet DiameterDischarge Outlet DiameterCasingRotorMechanical Seal
INP-PCD00050.01-0.10.2Rc1Rc1/2SCS14SUS304Sic/Sic
INP-PCD00150.02-0.20.2
INP-PCD0030.05-0.50.2
INP-PCD0060.1-1.20.2
INP-PCD0120.5-2.50.2
INP-PCD0251.0-6.00.2
※Specifications such as motor power and port size will vary depending on the viscosity of the fluid being transferred and the required flow rate.
Medium-capacity type: INP-PCN
ModelFlow rate (m3/h)Pressure
(MPa)		Suction Inlet DiameterDischarge Outlet DiameterCasingRotorMechanical Seal
INP-PCN0250.05-0.250.2G1 1/4G1SCS14SUS316LSic/Sic
INP-PCN050.1-0.50.240RF32RFSCS14
INP-PCN10.2-1.00.240RF32RFSCS14
INP-PCN20.4-2.50.250RF40RFFc250
INP-PCN51.0-5.00.265RF50RFFc250
INP-PCN102.0-10.00.280RF65RFFc250
※Specifications such as motor power and port size will vary depending on the viscosity of the fluid being transferred and the required flow rate.
Sanitary type: INP-PCS
ModelFlow rate (L/min)Pressure (MPa)Suction Inlet DiameterDischarge Outlet DiameterCasingRotorMechanical Seal
INP-PCS0120.7-5.60.21.0S1.0SSUS316LSUS316LSic/Sic
INP-PCS051.6-12.80.21.5S1.5S
INP-PCS12.9-23.60.21.5S1.5S
INP-PCS25.4-43.20.22.0S2.0S
※Specifications such as motor power and port size will vary depending on the viscosity of the fluid being transferred and the required flow rate.
※Only PCS models use coupling connections.

Available Options

Equipped with inverterTrolley-mounted specificationFlow (weight) control system
The flow rate can be adjusted by changing the pump’s rotation speed. We can also offer models with an inverter included.Delivery is available with the pump pre-assembled on a standard trolley. In addition, we can also manufacture custom-sized trolleys made of stainless steel (SUS).We offer solutions to control flow or weight, such as stopping at a specified value.

Sanitary Air Diaphragm Pump SB Series | Delivery Case Studies

一軸ねじポンプ INPシリーズ
Case Study | INPS Series | Transfer of Ultra-High Viscosity Liquid (400,000 cP) Client: Major Chemical & Cosmetics Manufacturing PlantApplication: Pressurized transfer of ultra-high viscosity liquid (400,000 cP)Model: Single Screw Pu…
一軸ねじポンプ INPシリーズ
Case Study | INPS Series | Pulsation-Free Transfer of Exterior Wall Coating Client: Major Housing ManufacturerApplication: Pressurized transfer of high-viscosity paint for exterior wall coatingModel: Single Screw Pump INPS-100-NB (Sa…
一軸ねじポンプ INPシリーズ
Case Study | INP Series | Slurry Transfer Between Tanks (Cart-Mounted with IV Integration) Client: Cosmetics Manufacturing Plant in the Kanto RegionApplication: Slurry transfer between tanks and to a filtration unitModel: Custom Single Screw Pump (…
一軸ねじポンプ INPシリーズ
【納入事例】界面活性剤の移送 納入：西日本大手石鹸製造工場　様用途：界面活性剤の移送（高粘度）型式：サニタリー一軸ねじポンプ／サニタリーハンディポンプ 界面活性剤を移送したい 石鹸製造工場…

Frequently Asked Questions (FAQs)

What is the maximum operating temperature?

Depending on usage conditions, it is approximately 150°C. For details, please contact us.

Is repair service available?

Yes, we offer repair services. Please send the unit to us, and we will provide a quotation.

Are there any charges if I choose not to proceed with the repair?

No charges will be incurred if no repair is carried out. There will be no disposal or inspection fees either.

Does the pump have consumable parts?

Consumable parts include stators, mechanical seals, and packings. These items are also available for individual purchase.

Is there any pulsation or vibration?

This pump has minimal pulsation, resulting in very low vibration.

Is there a type for drum insertion?

Yes, we offer a single-screw type designed for drum insertion. Click here for details.

Contact Us Here