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
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()/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 |
TIANJIN WORLDS VALVE Ltd. is located at TIAN JIN BIN HAI, , it is only 3 kilometers away from Tianjin Xingang Port, TIANJIN WORLDS VALVE Ltd. focuses on producing, installing, sale and service. The main products ranges from Center Line Butterfly Valve, Flanged Butterfly Valve, Metal Butterfly Valve, Dual Plate Check Valve, Gate Valve, Waterpower Control Valve, Microresistance Slow Close Check Valve, Multi-function Pump Control Valve to their series products. Moreover, we can produce control valve and pressure reducing valve with different materials, pressures, specifications, actuation ways. Our products have more than 50 serials and 1200 species, the annual production output is more than 8.000 metric tons. WORLDS valves sells well all over China and have been exported to Europe, America and other countries and areas, they are widely used in water supply and drainage, electric power, petrol chemical industry, metallurgy and other trades. The products are creative with good quality, cheap price and excellent credit, so far we got a good feedback from our customers.
WORLDS has excellent technicians and engineers, at the same time it has a lot of large and middle machines including 178 sets of manufacturing equipments and 32 sets of performance testing equipments imported from overseas. Our products have original design, exquisite technique, perfect manufacture and complete testing ways. It has passed ISO 9001 international quality system certification of DNV. WORLDS will supply best products and service for all customers.