Product description

Cryogenic Globe Valve

Model

DJ41H-Cryogenic Globe Valve

Nominal diameter

2″～24″

Operating temperature

-196℃～300℃(the range of service temperature may vary for different materials)

Operating pressure

150-2500 CLASS

Material

Main material: A351 CF8, CF8M, CF3, CF3M; A352 LCB, LCC, etc.

Design standard

BS 1873, BS 6364, ASME B16.34, GB 12235, GB 12224

Structural length

ASME B16.10

Connecting end

ASME B16.5, GB 9113

Test standard

API 598, ISO 5208, JB/T9092, GB/T13927, BS 6364, GB/T24925

Operation method

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

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.

Technical characteristics

The extension dimensions of valve stem and bonnet may vary according to different temperature ratings.

As valves subject to a temperature ≤-101℃ shall be protected against subzero deformation, the main parts are subzero treated.

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.

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 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.

Y-shape stop valve – the streamline flow pass has a very high flow coefficient, and can maximally reduce the pressure drop through the system.

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.