Metal-edged flexible graphite gaskets are used for 150LB, metal wound gaskets for 300LB and 600LB, and metal gasket rings for 900LB and above. They can also be adjusted to 600LB according to customer requirements

The rocker and pin installed inside the valve body can enable the valve disc to move fully

2. The valve seats with STL.6 cobalt-based surfacing welding are installed by seal welding, or threaded seat rings can be used as per customer requirements

3. Standard swing valve discs can only be installed on horizontal pipelines to control the medium or on vertical pipelines where the medium flows from bottom to top

4. At point G at the bottom of the valve body centerline, there is a standard boss reserved for opening the discharge hole. Other additional bosses shall be provided as per the customer's requirements

Design: BS1868

Structure: Valve cover bolted connection, swing-off valve disc

For 150LB- 6 "and above, use lifting rings; for 300LB&600LB- 4" and above, use lifting rings; for 900LB and above, use lifting rings for all

Design standards: BS 1868, ASME B16.34, API 6D

Structural length: ASME B16.10, API 6D, EN558,DIN 3202

Flange standards: ASME B16.5, ASME B16.47, DIN2501, DIN2533

Butt welding end standards: ASME B16.25, DIN3239

Inspection standards: API 598, DIN3230

Size: 2" to 36"(DN50 to DN900)

Nominal pressure: ASME CLASS 150-1500 (PN16 - PN250)

Valve body materials: carbon steel, stainless steel, alloy steel, etc

Valve disc materials: A105, 304SS, 316SS, etc

Valve stem material: 410SS, 304SS&17-4PH, etc

Valve seat materials: Surfacing 13Cr,Stellite 6, etc

Connection terminals: RF, BW, RTJ