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Home » Product List » check valve » Non Return Butterfly Valve (WDSCV)
Product Details
Non Return Butterfly Valve (WDSCV)
| Packing: | Plywood Case Packing |
|---|---|
| Model NO.: | WDSCV |
| Standard: | ISO BS DIN |
| Productivity: | 100, 000, 000 |
| Unit Price: | Negotiable |
| Shipment Terms: | FOB |
| Payment Terms: | T/T |
| Minimum Order: | 1 Pieces |
| Price Valid Time: | From Mar 29,2012 To Sep 30,2013 |
| HS Code: | 8481804090 |
| Trademark: | WDS |
| Origin: | China |
| Function: | Nrvr Silence |
| Material: | Bronze |
| Structure: | Butterfly |
| Connection Form: | Flange |
| Export Markets: | North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe |
Wafer Type Double Disc Check Valve
Standard:
Design standard conform to: MSS SP-67, API609, EN593
Connection flange conform to: DIN PN10/16/25, ANSI B16.1, BS4504, ISO PN10/16,
JIS B2212/2213, BS 10 Table D, BS 10 Table E
Top flange conform to: ISO 5211
Face to face conform to: API609, ISO5752 series 20, BS5155
Test standard conform to: API598
Design characters:
Check valve is used for preventing the back flow of medium in pipelines and equipments. It will open and close automatically by the pressure of medium. When the medium is back-going, valve disc will close automatically to avoid accidents.
1. Tightly sealed, without leakage under the water pressure testing.
2. Economical, light weight, compact design-significantly lighter and less expensive than comparable swing check valves.
3. Easy to install and maintain.
Performance:
Nominal Diameter: DN40-DN1200
Nominal Pressure PN (MPa):
1.0, 1.6, 2.0, 2.5
Testing pressure (water) PS (MPa)
Body seat: 1.5 times rated pressure
Seat test: 1.1 times rated pressure
Series: Butterfly check valve
Body: HT200, QT450, WCB, SS304, C95400, C95800, C95500
Disc: QT450, 316, 304, C95400, C95500, C95800
Stem: 316, 304, 40Cr, Monel k500
Sealing ring: NBR, EPDM, WCB, 304
| Detailed description |
| Series: dual plate check valve |
| Size: DN50-900 |
|
Design standard: MSS SP-67, API609, EN593 |
| Pressure standard: PN10; PN16; PN20; PN25 |
| Face to Face: API609; ISO5752 series20, BS5155 |
| Top flange: ISO5211; |
| Body: GG25/HT200/WCB/Al-bronze/WCB/SS304 |
| Plate: GGG40+Epoxy/Al-bronze/CF8/CF8M/Cast iron |
| Spring: SS304/SS316 |
| Seat: NBR/Hypalon/EPDM/Neoprene/NR/Wear-ResistantEPDM/Viton/Silicon/Heat-Resistant EPDM/White EPDM/EPDM(NSF)/PTFE |
| Stem: SS316/Monel K500/SS416/SS304 |
|
Suitable temperature: -45~135 |
|
Medium Fresh water, sewage, sea water, air, vapor, food, medicine, oils, alkalis, salt etc |
