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Single-plate gate valve
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Single-plate gate valve
Contact Name:
Tel: +86-577-6735 6515
Email: fzvalve@china-fzv.com
Address: No.8, Jiaotou Road, Heyi Industrial Park, Oubei Town, Yongjia County, Wenzhou City, Zhejiang Province, China
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Technical parameters and characteristics:

Product typeSwitch valve
Product descriptionSingle- and double-plate flat gate valve with deflector hole
ModelZp43/4H(F)-flat gate valve
Nominal diameterNPS 2”~48”(DN50~DN1200)
Operating temperature -196℃~593℃(the range of service temperature may vary for different materials)
Nominal pressureCLASS 150~1500 (PN20~PN260)
MaterialMain material: A216 WCB、WCC; A217 WC6、WC9、C5、C12、C12A、CA15; A351 CF8、CF8M、CF3、CF3M、CF8C、CN3MN、CK3MCUN、CN7M; A352 LCB、LCC; A494 CW-6MC、CU5MCuC、M35-1; A890 4A(CD3MN)、5A(CE3MN)、6A(CD3MWCuN); ASME B 148 C95800、C95500, etc.
Design standardAPI 6D、ASME B16.34
Structural lengthASME B16.10、GB/T 12221
Connecting endASME B16.5、ASME B16.47、ASME B16.25
Test standardAPI 598、ISO 5208、GB/T 26480
Operation methodnon-elevating hand wheel, bevel gear, motor drive unit, pneumatic drive unit
Application fieldsOil and natural gas pipelines, and urban gas pipeline
Other remarks 1The valve seat is embedded with flexible seal ring for zero leakage of seal; the valve seat and the slide sealing surface are build-up welded with hard alloy to improve the scouring resistance and extend the service life of the valve.
Other remarks 2SS+ graphite or metallic seal or pressure self-sealing is adopted between valve body and bonnet for reliable sealing
Other remarks 3Rising stem structure, making the valve switch position be clear at a glance
Other remarks 4The valve stem thread will not come into contact with the medium, so the corrosion of medium to the thread is reduced.
Other remarks 5Small switching moment, reliable sealing
Other remarks 6The flat gate valve with deflector hole is also convenient for pigging.
Other remarks 7Small flow resistance, high flow capacity and good flow characteristics
Other remarks 8K-plate flat gate valve can realize zero leakage through the valve seat of special process.
Other remarks 9Through improving the structural design and selecting reasonable packing structure and qualified packing supplier, the valves can meet the Class A sealing test requirements of ISO 15848 FE.


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