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Cast Steel Gate Valve

The gate valve can only be fully opened and fully closed to be used for cutting in the pipeline. It has such features as unlimited installation direction, small disturbed current, low pressure drop, shorter face-to-face dimension, good sealing performance and wide application range. The most important feature of the steel gate valve of Y&B Company is that it can be ensured that the permissible leakage rate can be lower than that specified in API6D and API600, and the middle shaft sealing can pass the USA VOC leakage test. Y&B Company can provide trims of various materials including materials specified by API600. We can also provide valves of various casting materials, such as carbon steel, stainless steel, alloy, Hastelloy, nickel chrome and etc.

 

Describes the design and product range:

Design basis: ASME B16.34, GB12234, API600

Flanged ends: ASME B16.5, GB9113

Butt-welding ends: ASME B16.25

Face-to-face dimension: ASME B16.10, GB12221

Inspection and test: API598, API6D, JB/T9092

Pressure rating: Class1502500, PN16PN420

Product range: 2″48″, DN50DN1200

Materials of main parts: WCB, LCB, WC6, WC9, C5, C

 

 

Design features:

Certified to API600

USA VOC middle shaft micro leakage certification

Design of outside screw and yoke

Bolted bonnet

Pressure self-sealing type bonnet

Design of wedge type flexible gate and full guide rail

Operation methods: handwheel, bevel gear or electric operation

Overlay welding by hard alloy can be performed on the seat surface according to specifications in API600

Replaceable valve seat and back seat

Integral seat and back seat are adopted in stainless steel valves

 

 

Forge Steel Gate Valve

The forged steel valve is generally used for the high pressure valve. These valves include forged steel gate valves, globe valves and check valves in accordance with American standard and national standard.

The valves of this kind produced by Y&B Company have multiple varieties and diversified specifications ranging from 1/2" to 3", which can meet customer's technical demands and delivery requirement.

We can provide trims and shells of various materials according to specifications in API602.

 

Describes the design and product range:

Design basis: API602, BS5352, ASME B16.34

Socket welding ends: ASME B16.11, DIN3202

Threaded ends: ASME B1.20.1

Butt-welding ends: ASME B16.25

Face-to-face dimension: ASME B16.10, GB12221

Inspection and test: API598, API6D, JB/T9092

Pressure rating: Class600~2500, PN100~PN420

Product range: 1/2"~3", DN15~DN80

Materials of main parts: A105, F11, F22, F5, F316

Trim materials: as per API600

 

Design features:

Bolted bonnet

Welded bonnet

Pressure self-sealing type bonnet

Screwed ends

Socket welding ends

Design of outside screw and yoke for gate valves and globe valves

Lift type valve disc (spring can be added) for check valves

Swing type valve disc is also available for check valves

Overlay welding by hard alloy can be performed on the seat surface according to specifications in API602

Body seat is adopted in stainless steel valves

Bellows seal can be made according to requirements