Product type

ON/OFF

Product description

Single- and double-plate flat gate valve with deflector hole

Model

Zp43/4H(F)-Slab Gate Valve

Nominal diameter

NPS 2”～48”(DN50～DN1200)

Operating temperature

-196℃～593℃(the range of service temperature may vary for different materials)

Nominal pressure

CLASS 150～1500 （PN20～PN260）

Material

Main 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 standard

API 6D、ASME B16.34

Structural length

ASME B16.10、GB/T 12221

Connecting end

ASME B16.5、ASME B16.47、ASME B16.25

Test standard

API 598、ISO 5208、GB/T 26480

Operation method

non-elevating hand wheel, bevel gear, motor drive unit, pneumatic drive unit

Application fields

Oil and natural gas pipelines, and urban gas pipeline

Other remarks 1

The 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 2

SS+ graphite or metallic seal or pressure self-sealing is adopted between valve body and bonnet for reliable sealing

Other remarks 3

Rising stem structure, making the valve switch position be clear at a glance

Other remarks 4

The valve stem thread will not come into contact with the medium, so the corrosion of medium to the thread is reduced.

Other remarks 5

Small switching moment, reliable sealing

Other remarks 6

The flat gate valve with deflector hole is also convenient for pigging.

Other remarks 7

Small flow resistance, high flow capacity and good flow characteristics

Other remarks 8

K-plate flat gate valve can realize zero leakage through the valve seat of special process.

Other remarks 9

Through 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.