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Ningbo RMI Plastic Co., Ltd.

HomeProductsCheck ValveSteel/Stainless Steel Check Valvecontrol slow closing counterweight butterfly check valve
  • control slow closing counterweight butterfly check valve

control slow closing counterweight butterfly check valve

    Unit Price: USD 48 / Piece/Pieces
    Payment Type: T/T,D/P,Paypal,Money Gram,Western Union
    Incoterm: FOB,CFR,CIF
    Min. Order: 10 Piece/Pieces
    Delivery Time: 10 Days

Basic Info

Model No.: HHQ47H

Certification: SGS, ISO

Temperature: Low Temperature

Connection: Welding

Pressure: Adjustable

Closed: Closed

Structure: Spring

Material: Stainless Steel

Additional Info

Packaging: carton

Productivity: 100000

Brand: RMI

Transportation: Ocean,Land,Air

Place of Origin: CHINA

Supply Ability: 1000/MOUNTH

Certificate: ISO

HS Code: 8481804090

Port: 宁波

Product Description

Valve Introduction

HHQ47H self control slow closing counterweight butterfly Check Valve

HHQ47H self control slow closing counterweight butterfly check valve is installed at the exit of pump, it can prevent from medium backforward and water hammer damage when pump stop or emergency power shutoff.

Structure

Sloping seat designed, double offset disc

Metal to metal sealing surface. Valve seat plating hard alloy or stainless steel. Disc sealing surface is multi-layer designed (stainless steel 316L & flexible graphite)

Installed with hydraulic slow closing device, small concentration slurry fluid. Valve diameter 250-2400mm, Valve nominal pressure no more than 2.5MPa

Application

Available medium: Water, sewage and others

Main Parameters

Material

Part Name
Material
Body
Ductile cast iron or 20G carbon steel
Disc
WCB
Shaft
1Cr18Ni9Ti
Bearing
Composite self-lubricating bearing
Sealing Surface
SUS304/EPDM (Rubber Seal)
SUS304/SUS316L+Flexible graphite (Metal Seal)
Hard Alloy/SUS316L+Flexible graphite (Metal Seal)
Sealing elements
EPDM Fluororubber

Valve Close Feature

Flow coefficient (Kv) & Flow resistance coefficient when valve fully opened (ζ)

DN

Kv
ζ

PN 0.6MPa

PN 1.0MPa

PN 0.6MPa
PN 1.0MPa

250


0.07

0.62

300


0.28

0.57

400


0.33

0.50

500


0.45

0.50

600


0.58

0.48

700


0.89

0.43

800

1.07

0.38

900

1.55

0.36

1000

1.98

0.30

1200

3.05

2.92

0.30

0.32

1400

4.17

4.11

0.30

0.32

1600

5.33

0.27

1800

7.40

0.22

2000

9.58

0.22



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Product Categories : Check Valve > Steel/Stainless Steel Check Valve

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