Payment Type:T/T,D/P,Paypal
Incoterm:FOB,CFR,CIF
Min. Order:10 Piece/Pieces
Transportation:Ocean,Land,Air
Port:宁波
$1≥10Piece/Pieces
Model No.: HHQ47H
Brand: RMI
Certification: ISO
Temperature: Low Temperature
Connection: Welding
Pressure: Adjustable
Closed: Closed
Structure: Spring
Material: Stainless Steel
Warranty Period: 3 Years
Types Of: Butterfly Valves
Support Customization: Oem
Place Of Origin: China
Application: General
Medium Temperature: Normal Temperature
Power: Hydraulic
Flow Medium: Water, Oil, Acid
Structure: Butterfly, Check
Packaging: carton
Productivity: 100000
Transportation: Ocean,Land,Air
Place of Origin: CHINA
Supply Ability: 1000/MOUNTH
Certificate: ISO
HS Code: 8481804090
Port: 宁波
Payment Type: T/T,D/P,Paypal
Incoterm: FOB,CFR,CIF
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,Stainless Steel Butterfly Valve 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. Wafer Butterfly 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, Lug Butterfly Valve nominal pressure no more than 2.5MPa
Application
Available medium: Water, sewage and others
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 |