Product description

Pressure Sealed Globe Valve

Model

J40H-Pressure Sealed Globe Valve

Nominal diameter

NPS 2″～24″(DN50～DN600)

Operating temperature

-29℃～593℃(the range of service temperature may vary for different materials)

Nominal pressure

CLASS 150～2500（PN 20～PN420）

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), etc.

Design standard

ASME B16.34, BS 1873

Structural length

ASME B16.10

Connecting end

ASME B16.5, ASME B16.25

Test standard

API 598, ISO 5208

Operation method

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

Application fields

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

Technical characteristics

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.

The friction between sealing faces is smaller during opening and closing, facilitating a longer service life.

The valve clack is of taper, needle, ball and parabola types, and can be used to adjust the flow rate.

The pressure self-sealing is adopted between valve body and bonnet for reliable sealing, where the higher the pressure is, the better the sealing performance would be.

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.

A certain clearance is provided between valve clack and valve stem. You may adjust it by yourself. The sealing is reliable.

The valve clack can be machined into parabola, spherical, needle shapes, etc. according to the requirement of customer. It can be used for adjustment (rough adjustment) on pipeline.

Short stroke is suitable for application at positions subject to frequent opening.

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.