how do non return valves work

Brand Name:KAKA

Model Number:CV-6031

Place of Origin:China

... Temperature: -10℃≤t≤115℃ Thread to ISO228 Note: Sealing Material is Brass Swing check valve size: 1-1/4 inch BSP female x female threaded. Swing check valve material: Brass. Max pressure: 232 Psi. Wide application: Applicable for water, steam,

Brand Name:TOBO

Model Number:/

Place of Origin:CHINA

Ansi 6 Inches Flange Type Cast Steel Swing Check Valve Non-return Valve Nominal Diameter: Ø50-Ø200 (2”-8”) Maximum Working Temperature: 80℃ (176℉) Maximum Working Pressure: 16 bar (230 psi) Body: Cast Iron (GG25) Coating: Epoxy Powder Dimensions: DIN 3202...

Place of Origin:China

...Valve Butterfly Non Return Valve Overview: Double flange butterfly check valve is a commonly used check valve type, also known as double flange butterfly valve or double flange gate valve. It consists of two flange-connected butterfly plates and is used to control the flow of fluid in the pipeline and prevent reverse flow. The working principle of the double flange butterfly check valve...

Brand Name:Calin

Model Number:CA568

Place of Origin:China

...non-return Valve Water Meter The CA568 operates with a hydraulical ball valve driven by low power usage motor and shuts off when water units finish. The lithium battery has working life up to 5 years and is replacable by authorized technicians. There is a non-return valve...

Brand Name:CXDLV

Model Number:H44

Place of Origin:China

... - Buttwelding Ends: ASME B16.25 - Inspection and Test: API598, API6D Application Swing-type check valve is suitable for nominal pressure PN1.0MPa~42.0MPa, Class150-2500; nominal diameter DN15~1200mm, NPS1/2~48; working temperature -196~540°C for

Brand Name:HYUNDAI MAN B&W

Model Number:5S60MC-C MK7

Place of Origin:OEM/Original

... technology to ensure that the accuracy of OEM parts is not more than 0.01cm from that of original parts. Specifications: Brand HYUNDAI MAN B&W Type 5S60MC-C MK7 Name Spindle Guide Non-return Valve Delivery Time 1-10 Working Days According To The

Brand Name:OEM

Model Number:H41 / H41H

Place of Origin:Shanghai , China

Lift Check Valve , DIN Cast Iron / Steel, Double Flanged , Non-Return Valve​ Application: Lift check valve can work in high temperature and pressure circumstance with good appearance, nice function and superior. Widely used in petroleum, chemistry, water...

Brand Name:LGMC

Model Number:12C5296

Place of Origin:China

...valve · Application: EXCAVATOR · Color: As photo · Condition: 100% Original · Delivery: 3-7 Working Days · Warranty: 3 Months · Stock quantity: available · Packing: box, wooden · Port: Guangzhou / Shenzhen A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve...

Brand Name:Stron

Model Number:STW36-A

Place of Origin:Hunan

... up to 8 years life,LCD has real time o-clock of local place.With ingress protection IP68 waterproof,it can perfectly work even under water,automatic valve controlling is with microcomputer technology,when monitoring tamper action or no credits,valve will

Brand Name:Calin

Model Number:CA568

Place of Origin:China

...non-return Valve Water Meter The CA568 operates with a hydraulical ball valve driven by low power usage motor and shuts off when water units finish. The lithium battery has working life up to 5 years and is replacable by authorized technicians. There is a non-return valve...

Brand Name:NYHAU

Place of Origin:KunShan,China

.... Are different to many other types of valves,for check valves work automatically and most are not controlled by a person or any external control. Accordingly, most do not have any valve handle or stem. Thus there is an important concept in check valves,

Brand Name:TongJiang

Model Number:Double Hinge Flap Check Valve

Place of Origin:CHINA

Double Hinge Flap Check Valve Ductile Iron, PN 16 Bar, DN80 - DN600 Check Valve PRODUCT INTRODUCTION Flap Check Valve Description The double hinge Flap Valve is a circular aperture design suitable for use in dirty or sea water applications. Typical ...

Brand Name:JIEYU

Place of Origin:WENZHOU,CHINA

Flange End Lift Type Non Return Check Valve Product name CHECK VALVE Material WCB,CF8,CF8M Size 1/2"-12" ,DN15-DN300 Working pressure PN16, 150LBS Connection Ends Flange Suitable medium Water, Gas, Oil and some corrosive liquid Investment casting body and ...

Brand Name:Kaienli

Model Number:KCV08-21

Place of Origin:China

Product Pictures: Description : KCV08-21 Harded check valve with flow 30L 40L 60L 95L one way check valve Working Principle: Allow oil to flow from ① to ②, while blocking reverse flow of oil. The fully guided valve core closes the valve port under the ...

Brand Name:YALONG

Model Number:YL410

Place of Origin:China

YL410 1/2 '' To 1 '' F X F Brass Vertical Check Valve Threaded Check Valve Nature Color Description ​Working Pressure 1.0MPa Working Temperature from -10 ℃ to +120 ℃ (from 14℉ to 248℉) Thread ISO228 (equivalent to DIN 259 and BS2779) ​​ Details ​Brass ...

Place of Origin:China (Mainland)

Brand Name:AFK

Model Number:CV

Product features 1) Working pressure 3000-6000PSI 2) Working temperature: 2500F(121℃), using buna. 3) Min flow capacity limited 4) Closed quickly at reverse flow direction. 5) 100% factory test. 6) Locking up pressure according to customer's demands. 7)...

Brand Name:BENSINO

Model Number:242

Place of Origin:Zhejiang,China

1/2 Inch Chrome Plated Angle Valve Bathroom Water Heater One Outlet Valve (Model - 242) ►Product Description Model 242 Size 1 2 inch Material Brass Weight 105g Logo OEM/ODM Surface treatment Chrome plated Full Size Sample Lead time As usual 3-7 working ...

Place of Origin:Jiangsu, China

Brand Name:Atlas

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Brand Name:DONJOY

Model Number:NO.VZH300A1

Place of Origin:CHINA

...Non Return Valve/3 PCS Hydrauli Check Valve for beverage pipe line Specification Product Name: 316L Sanitary Spring Non Return Valve Stainless Steel Check Valve Valve Body Material: SS304 or SS316L Seal Material: EPDM Max. Working Pressure: 10Bar Opening pressure: 0.1-0.3bar Max. Working...