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 customers demands and date of delivery.

Y&B Company can provide trims and shells of various materials according to

specifications in API602.

Design standards 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