Product description

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

Model

Zp43/4H(F)-Slab Gate Valve

Nominal diameter

2″～48″

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

Connecting end

ASME B16.5, ASME B16.47, ASME B16.25

Test standard

API 6D, API 598, ISO 5208

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

Technical characteristics

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.

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

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

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

Small switching moment, reliable sealing

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

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

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.