OVERVIEW: The SIL-IG center-guided silent check valves with a cast iron body use a fully automatic spring assisted discs to eliminate water hammer while preventing flow reversal in the piping. The spring closure acts faster than swing check valves, which can slam shut with the flow reversal.
The globe style body design minimizes head loss with a large cross-sectional area across the check valve. And typical conical spring construction that restrict flow, the SIL-DG has a compression spring coupled with a small stem guide that allows for an unobstructed flow path. Clearance within the body allows a butterfly valve to be installed directly on the outlet side of the valve without extra piping.
Standard discs and seats for the SIL-IG from Stayflow are either nickel plated iron or stainless steel.
Lead free. For clean liquids.
MODEL | TYPE |
SIZE
(in)
|
ENDS | BODY MTL | SEAT | DISC | CLASS | Cv |
WT
(lbs)
|
A
(in)
|
B
(in)
|
C
(in)
|
D
(in)
|
E
(in)
|
ITEM NO |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SIL-IG1N | GLOBE | 2-1/2 | 125# FLANGE | CAST IRON | EPDM | NI PLATED DUCTILE IRON | 125# | 110 | 20 | 7 | 5-1/2 | 5-1/2 | 11/16 | 1-3/16 | VCSIL-IG1NE0250 |
SIL-IG1N | GLOBE | 3 | 125# FLANGE | CAST IRON | EPDM | NI PLATED DUCTILE IRON | 125# | 155 | 26 | 7-1/2 | 6 | 6 | 15/16 | 1-3/8 | VCSIL-IG1NE0300 |
SIL-IG1N | GLOBE | 4 | 125# FLANGE | CAST IRON | EPDM | NI PLATED DUCTILE IRON | 125# | 278 | 44 | 9 | 7-1/4 | 7-1/4 | 15/16 | 1-3/4 | VCSIL-IG1NE0400 |
SIL-IG1N | GLOBE | 5 | 125# FLANGES | CAST IRON | EPDM | NI PLATED DUCTILE IRON | 125# | 435 | 65 | 10 | 8-1/2 | 8-1/2 | 15/16 | 2 | VCSIL-IG1NE0500 |
SIL-IG1N | GLOBE | 6 | 125# FLANGE | CAST IRON | EPDM | NI PLATED DUCTILE IRON | 125# | 625 | 79 | 11 | 9-3/4 | 9-1/2 | 1 | 2-1/2 | VCSIL-IG1NE0600 |
SIL-IG1N | GLOBE | 8 | 125# FLANGE | CAST IRON | EPDM | NI PLATED DUCTILE IRON | 125# | 1115 | 137 | 13-1/2 | 12-1/2 | 11-3/4 | 1-1/8 | 3-1/4 | VCSIL-IG1NE0800 |
SIL-IG1N | GLOBE | 10 | 125# FLANGE | CAST IRON | EPDM | NI PLATED DUCTILE IRON | 125# | 1770 | 223 | 16 | 15-1/2 | 14-1/4 | 1-3/16 | 4-1/4 | VCSIL-IG1NE1000 |
SIL-IG1N | GLOBE | 12 | 125# FLANGE | CAST IRON | EPDM | NI PLATED DUCTILE IRON | 125# | 2500 | 298 | 19 | 14-1/4 | 17 | 1-1/4 | 3/4" BEYOND FLANGE FACE | VCSIL-IG1NE1200 |
SIL-IG2N | GLOBE | 2-1/2 | 250# FLANGE | CAST IRON | EPDM | NI PLATED DUCTILE IRON | 250# | 110 | 25 | 7-1/2 | 5-1/2 | 5-7/8 | 1 | 1-7/16 | VCSIL-IG2NE0250 |
SIL-IG2N | GLOBE | 3 | 250# FLANGE | CAST IRON | EPDM | NI PLATED DUCTILE IRON | 250# | 155 | 34 | 8-1/4 | 6 | 6-5/8 | 1-1/8 | 1-3/8 | VCSIL-IG2NE0300 |
SIL-IG2N | GLOBE | 4 | 250# FLANGE | CAST IRON | EPDM | NI PLATED DUCTILE IRON | 250# | 278 | 59 | 10 | 7-1/4 | 7-7/8 | 1-1/4 | 1-3/4 | VCSIL-IG2NE0400 |
SIL-IG2N | GLOBE | 5 | 250# FLANGE | CAST IRON | EPDM | NI PLATED DUCTILE IRON | 250# | 435 | 74 | 11 | 8-1/2 | 9-1/4 | 1-3/8 | 2 | VCSIL-IG2NE0500 |
SIL-IG2N | GLOBE | 6 | 250# FLANG | CAST IRON | EPDM | NI PLATED DUCTILE IRON | 250# | 625 | 100 | 12-1/2 | 9-3/4 | 10-5/8 | 1-7/16 | 2-1/2 | VCSIL-IG2NE0600 |
SIL-IG2N | GLOBE | 8 | 250# FLANGE | CAST IRON | EPDM | NI PLATED DUCTILE IRON | 250# | 1115 | 177 | 15 | 12-1/2 | 13 | 1-5/8 | 3-1/4 | VCSIL-IG2NE0800 |
SIL-IG2N | GLOBE | 10 | 250# FLANGE | CAST IRON | EPDM | NI PLATED DUCTILE IRON | 250# | 1770 | 255 | 17-1/2 | 15-1/2 | 15-1/4 | 1-7/8 | 4-1/4 | VCSIL-IG2NE1000 |
SIL-IG2N | GLOBE | 12 | 250# FLANGE | CAST IRON | EPDM | NI PLATED DUCTILE IRON | 250# | 2500 | 375 | 20-1/2 | 14-1/4 | 17-3/4 | 2 | 3/4" BEYOND FLANGE FACE | VCSIL-IG2NE1200 |
SIL-IG1N | GLOBE | 2-1/2 | 125# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 125# | 110 | 20 | 7 | 5-1/2 | 5-1/2 | 11/16 | 1-3/16 | VCSIL-IG1SX0250 |
SIL-IG1N | GLOBE | 3 | 125# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 125# | 155 | 26 | 7-1/2 | 6 | 6 | 15/16 | 1-3/8 | VCSIL-IG1SX0300 |
SIL-IG1N | GLOBE | 4 | 125# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 125# | 278 | 44 | 9 | 7-1/4 | 7-1/4 | 15/16 | 1-3/4 | VCSIL-IG1SX0400 |
SIL-IG1N | GLOBE | 5 | 125# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 125# | 435 | 56 | 10 | 8-1/2 | 8-1/2 | 15/16 | 2 | VCSIL-IG1SX0500 |
SIL-IG1N | GLOBE | 6 | 125# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 125# | 625 | 79 | 11 | 9-3/4 | 9-1/2 | 1 | 2-1/2 | VCSIL-IG1SX0600 |
SIL-IG1N | GLOBE | 8 | 125# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 125# | 1115 | 137 | 13-1/2 | 12-1/2 | 11-3/4 | 1-1/8 | 3-1/4 | VCSIL-IG1SX0800 |
SIL-IG1N | GLOBE | 10 | 125# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 125# | 1770 | 223 | 16 | 15-1/2 | 14-1/4 | 1-3/16 | 4-1/4 | VCSIL-IG1SX1000 |
SIL-IG1N | GLOBE | 12 | 125# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 125# | 2500 | 298 | 19 | 14-1/4 | 17 | 1-1/4 | 3/4" BEYOND FLANGE FACE | VCSIL-IG1SX1200 |
SIL-IG1N | GLOBE | 14 | 125# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 125# | 3400 | 375 | 21 | 15-3/4 | 18-3/4 | 1-3/8 | 1-7/16" BEYOND FLANGE FACE | VCSIL-IG1SX1400 |
SIL-IG1N | GLOBE | 16 | 125# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 125# | 4400 | 485 | 23-1/2 | 17-5/8 | 21-1/4 | 1-7/16 | 2-1/4" BEYOND FLANGE FACE | VCSIL-IG1SX1600 |
SIL-IG1N | GLOBE | 18 | 125# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 125# | 5600 | 585 | 25 | 18-3/4 | 22-3/4 | 1-9/16 | 2-1/4" BEYOND FLANGE FACE | VCSIL-IG1SX1800 |
SIL-IG1N | GLOBE | 20 | 125# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 125# | 6900 | 890 | 27-1/2 | 20-5/8 | 25 | 1-11/16 | 2-15/16" BEYOND FLANGE FACE | VCSIL-IG1SX2000 |
SIL-IG1N | GLOBE | 24 | 125# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 125# | 10000 | 1220 | 32 | 24 | 29-1/2 | 1-7/8 | 3-5/8" BEYOND FLANGE FACE | VCSIL-IG1SX2400 |
SIL-IG1N | GLOBE | 30 | 125# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 125# | 15400 | 2000 | 38-3/4 | 29-1/4 | 36 | 2-1/8 | 5" BEYOND FLANGE FACE | VCSIL-IG1SX3000 |
SIL-IG1N | GLOBE | 36 | 125# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 125# | 22400 | 4421 | 46 | 45 | 42-3/4 | 2-3/8 | 8" BEYOND FLANGE FACE | VCSIL-IG1SX3600 |
SIL-IG1N | GLOBE | 42 | 125# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 125# | 30400 | N/A | 53 | 50 | 49-1/2 | 2-5/8 | 9-1/4" BEYOND FLANGE FACE | VCSIL-IG1SX4200 |
SIL-IG1N | GLOBE | 2-1/2 | 250# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 250# | 110 | 20 | 7-1/2 | 5-1/2 | 5-7/8 | 1 | 1-7/16 | VCSIL-IG2SX0250 |
SIL-IG1N | GLOBE | 3 | 250# FLANGE | CAST IRON | T304 FLANGE | T304 FLANGE | 250# | 155 | 26 | 8-1/4 | 6 | 6-5/8 | 1-1/8 | 1-3/8 | VCSIL-IG2SX0300 |
SIL-IG1N | GLOBE | 4 | 250# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 250# | 278 | 44 | 10 | 7-1/4 | 7-7/8 | 1-1/4 | 1-3/4 | VCSIL-IG2SX0400 |
SIL-IG1N | GLOBE | 5 | 250# FLANGES | CAST IRON | T304 STAINLESS | T304 STAINLESS | 250# | 435 | 56 | 11 | 8-1/2 | 9-1/4 | 1-3/8 | 2 | VCSIL-IG2SX0500 |
SIL-IG1N | GLOBE | 6 | 250# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 250# | 625 | 79 | 12-1/2 | 9-3/4 | 10-5/8 | 1-7/16 | 2-1/2 | VCSIL-IG2SX0600 |
SIL-IG1N | GLOBE | 8 | 250# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 250# | 1115 | 137 | 15 | 12-1/2 | 13 | 1-5/8 | 3-1/4 | VCSIL-IG2SX0800 |
SIL-IG1N | GLOBE | 10 | 250# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 250# | 1770 | 223 | 17-1/2 | 15-1/2 | 15-1/4 | 1-7/8 | 4-1/4 | VCSIL-IG2SX1000 |
SIL-IG1N | GLOBE | 12 | 250# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 250# | 2500 | 298 | 20-1/2 | 14-1/4 | 17-3/4 | 2 | 3/4 | VCSIL-IG2SX1200 |
SIL-IG1N | GLOBE | 14 | 250# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 250# | 3400 | 375 | 23 | 15-3/4 | 20-1/4 | 2-1/8 | 1-7/16" BEYOND FLANGE FACE | VCSIL-IG2SX1400 |
SIL-IG1N | GLOBE | 16 | 250# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 250# | 4400 | 485 | 25-1/2 | 17-5/8 | 22-1/2 | 2-1/4 | 2-1/4" BEYOND FLANGE FACE | VCSIL-IG2SX1600 |
SIL-IG1N | GLOBE | 18 | 250# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 250# | 5600 | 585 | 28 | 18-3/4 | 24-3/4 | 2-3/8 | 2-1/4" BEYOND FLANGE FACE | VCSIL-IG2SX1800 |
SIL-IG1N | GLOBE | 20 | 250# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 250# | 6900 | 890 | 30-1/2 | 20-5/8 | 27 | 2-1/2 | 2-15/16 | VCSIL-IG2SX2000 |
SIL-IG1N | GLOBE | 24 | 250# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 250# | 10000 | 1220 | 36 | 24 | 32 | 2-3/4 | 3-5/8" BEYOND FLANGE FACE | VCSIL-IG2SX2400 |
SIL-IG1N | GLOBE | 30 | 250# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 250# | 15400 | 2000 | 43 | 29-1/4 | 39-1/4 | 3 | 5" BEYOND FLANGE FACE | VCSIL-IG2SX3000 |
SIL-IG1N | GLOBE | 36 | 250# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 250# | 22400 | 4421 | 50 | 45 | 46 | 3-3/8 | 8 | VCSIL-IG2SX3600 |
SIL-IG1N | GLOBE | 42 | 250# FLANGE | CAST IRON | T304 STAINLESS | T304 STAINLESS | 250# | 30400 | N/A | 57 | 50 | 52-3/4 | 3-11/16 | 9-1/4 | VCSIL-IG2SX4200 |