Full Lugged or Lug Knife Gate Valve Conform to MS SP-81, They are tested according to API 598, and marked as per MSS SP-25.
1. Construction is as follows
- Full Port or Standard Port |
- Without Bonnet |
- Soft or Metal Seated |
- Renewable Seat |
- Solid Knife with Hard Cr Coated |
- Wafer to Suit for Flanged |
- Flanged Ends to ASME B16.5 and B16.47 |
2. Main Part & Materials
Part Names |
Part Materials |
Body |
Cast Iron |
Ductile Iron |
WCB |
CF8 |
CF8M |
CF3 |
CF3M |
SAF 2205 |
Knife |
SS304/SS316 |
SS304 |
SS316 |
SS304L |
SS316L |
SAF 2205 |
Stem |
F6a or Required |
Seat/Seat Ring |
NBR/EPDM/PTFE or Metal Seat |
Packing |
Graphite/PTFE |
Bolts/Nuts |
B7/2H |
L7/4 |
B16/4 |
B8/8 |
B8M/8M |
B8/8 |
B8M/8M |
B8M/8M |
3. Normal Pressure Rating
PN6~PN16, CLASS150
4. Normal Size Range
DN50~DN1500, 2"~60"