Product type

ON/OFF

Product description

Small Forged Piston Check Valve

Model

H11H-Small Forged Piston Check Valve

Nominal diameter

NPS 1/4”～2”(DN8～DN50)

Operating temperature

-29℃～595℃(the range of service temperature may vary for different materials)

Operating pressure

CLASS 150～2500 (PN 20～PN420)

Material

Main material: A105、A350 LF2、A182 F11、A182 F22、A182 F304、A182 F316、A182、F51、B150 C61900、B564 N04400、B546 N06625, etc.

Design standard

ISO 15761、API 602、BS 5352、ASME B16.34

Structural length

Company standard、ASME B16.10（flange type）

Connecting end

ASME B16.5、ASME B16.25、ASME B16.11

Test standard

API 598

Operation method

The valve clack is automatically opened and closed with the medium force.

Application fields

For application in fields such as electric power industry, petroleum refining, petrochemical engineering, offshore oil, tap water engineering in urban construction, chemical engineering, etc.

Other remarks 1

The sealing faces of valve seat and valve clack are build-up welded with hard alloy to improve the erosion resistance and extend the service life of 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

Suitable for medium backflow prevention in pipeline or device