1) The seat ring uses the floating seat ring structure with O-seal ring sealed and pre-tightening force applied to have inlet and outlet dual-way sealed, and the open-close moment with this structure is 1/2 that of the common valves only, able to lightly open and close valve.
2) When fully opened, the valve's channel is smooth and linear,with an extremely small flow resisting coefficient and no pressure loss ,and the pipeline can be cleaned with hair-ball through it .
3) Automatic removal of the high pressure in the internal cavity when the valve is about to close so as to ensure safety.
4) Fully sealed structure leaves a good protective property, suitable for the requirement of 24-hour duty. Standard for gate valves:
Design manufacture standard: API 6D
Length of structure: API 6D
Flange connecting end: ASME B16.5/ASME B16.47
Butt welding connecting end: ASME B16.25
Wall thickness: ASME B16.34
Inspection and test: API 6D
Pressure and temperature rating: ASME B16.34
Product scope: NPS 2inch-NPS 48inch,CL150-CL2500
Main body material:WCB,LCB,WCC,WC6,WC9,CF8,CF8M,CF3,CF3M,A890 4A etc.
Drive device: handle, bevel gear, electric, pneumatic, etc. Our Advantages:1.We Are Factory:
FYV has 3 production bases and 1 foundry which located in Wenzhou, Shanghai and Lishui city of China. The Factory Size in Square Meters : 110,000. FYV has over 600 staff members, more than 60 technical engineers, a digital process center and more than 350 sets of various middle and large equipments. The annual sales revenue reaches above $80 million US Dollars.2. Regional Sales:
We provide specialized sales service refers to different kind of region all over the world. Each sales team member is good at the local language and well experienced to the responsible market. For example: Russian, German, Spanish, Japanese, etc.3. Low MOQ:
Our factory owns the casting company by itself. We are always ready for providing the sample and producing some small orders, in order to meet the business well.4. OEM Accepted:
We can make the products with the client's demand standard or the custom requirement.5. Complete Service:
We are always ready to hear from you, be responding to your enquiry immediately. Our trade manager is always online for you.6. Good Quality:
We have strict quality control system and amounts of testing equipments for different kind of valve, such as size, pressure, working environment etc. We are winning the market reputation with the time goes by.7. Quick Delivery:
We have the large stock for some hot products.8. Competitive Prices:
We are the manufacturing company which not only has our own manufacturing workshop, but the casting company as well. We provide the straight factory price and service to our customer. We are the professional manufacturer of Gate Valve. Fangyuan Valve Group has a series of quality control system.