Short Description
Model No.: CVCS 900LB-4 Clicks: 1559
Cast steel check valves, RF flange end, pressure self cap.
Model: 4 Inch, 900 LB.
Body/Cap: ASTM A216 WCB+ENP.
Disc: ASTM A216 WCB+13CR.
Seat: ASTM A105+13CR.
Face to face dimension: 457 mm.
Valve standard: BS 1868.
Flange standard: ASME B16.5.
Sealing pressure test: 169 BAR.
Shell pressure test: 230 BAR.
Standards and range:
- Design basis: ASME B16.34, GB 12236, API 6D.
- Flanged ends: ASME B16.5, GB 9113.
- Butt-welding ends: ASME B16.25.
- Face-to-face dimension: ASME B16.10, GB 12221.
- Inspection and test: API 598, API 6D, JB/T 9092.
- Pressure rating: Class150 - 2500, PN16 - PN420.
- Product range: 2" - 36", DN50 - DN900.
- Materials of main parts: WCB, LCB, WC6, Wc9, C5, CF8M, Alloy 20.
- Trim materials: as per API 600.
Design Features :
- Swing type valve disc.
- Tilting disc type valve disc.
- Bolted bonnet.
- Pressure self-sealing type bonnet.
- Suitable for horizontal and vertical installation.
- Flanged ends.
- Butt-welding ends.
- Pressure self-sealing type bonnet.
- Overlay welding by hard alloy can be performed on the seat surface according to specifications in API 600.
- Replaceable valve seat.
- Integral seat and back seat are adopted in stainless steel valves.
- The built-in structure is adopted for connecting the pin and valve disc, so there is no external leakage point.
