Boiler Blowdown Valves | Boiler Supplies Everlasting Quick & Slow Opening Blowdown Valves & Repair Kits Everlasting Quick Opening Blow Off Valves 300 lb.
Everlasting Valves were developed for steam boiler blow down Blow Off Valves nearly 100 years ago for abrasive solids. The packaged steam boiler industry has standardized on the everlasting valve rotating flat disc boiler blow off valve. They are manual on-off valves that effectively blow down sludge formed in steam boilers.
The 4000S Series is a ISO 9001 Certified Lever Operated Blowdown Valve that has a straight-through flow design freaturing leak proof seal and disc that has self lapping & self wiping action that will not hang up on boiler scale. Boiler Blow Down Blow Off Valves are based on ASME boiler and pressure vessel section 1 codes and ANSI B16.31 power piping codes.
| Part # | Size |
Valve Class |
Max. Blow-Off Pressure A.S.M.E. |
Price | Qty | |
|---|---|---|---|---|---|---|
| 4000-S(57)-1 | 1" | 300 lb. | 490 psi | $1,508.75 | Add to Cart | |
| 4000-S(57)-1.25 | 1 1/4" | 300 lb. | 490 psi | $1,620.67 | Add to Cart | |
| 4000-S(57)-1.50 | 1 1/2" | 300 lb. | 490 psi | $2,028.67 | Add to Cart | |
| 4000-S(57)-2 | 2" | 300 lb. | 490 psi | $2,302.08 | Add to Cart | |
| 4000-S(57)-2.50 | 2 1/2" | 300 lb. | 490 psi | $3,511.92 | Add to Cart |
| Part # | Size |
Valve Class |
Max. Blow-Off Pressure A.S.M.E. |
Price | Qty | |
|---|---|---|---|---|---|---|
| 4001-S(57)-1 | 1" | 300 lb. | 490 psi | $2,024.42 | Add to Cart | |
| 4001-S(57)-1.25 | 1 1/4" | 300 lb. | 490 psi | $2,051.33 | Add to Cart | |
| 4001-S(57)-1.50 | 1 1/2" | 300 lb. | 490 psi | $2,450.83 | Add to Cart | |
| 4001-S(57)-2 | 2" | 300 lb. | 490 psi | $2,697.33 | Add to Cart | |
| 4001-S(57)-2.50 | 2 1/2" | 300 lb. | 490 psi | $3,718.75 | Add to Cart |
| Part # | Size |
Valve Class |
Max. Blow-Off Pressure A.S.M.E. |
Price | Qty | |
|---|---|---|---|---|---|---|
| 4010-S(57)-1.50 | 1 1/2" | 300 lb. | 490 psi | $2,319.08 | Add to Cart | |
| 4010-S(57)-2 | 2" | 300 lb. | 490 psi | $3,040.17 | Add to Cart | |
| 4010-S(57)-2.50 | 2 1/2" | 300 lb. | 490 psi | $3,723.00 | Add to Cart |
| Part # | Size |
Valve Class |
Max. Blow-Off Pressure A.S.M.E. |
Price | Qty | |
|---|---|---|---|---|---|---|
| 4011-S(57)-1.50 | 1 1/2" | 300 lb. | 490 psi | $3,340.50 | Add to Cart | |
| 4011-S(57)-2 | 2" | 300 lb. | 490 psi | $3,520.42 | Add to Cart | |
| 4011-S(57)-2.50 | 2 1/2" | 300 lb. | 490 psi | $4,123.92 | Add to Cart |
© 2025 Boiler Supplies. All Rights Reserved. |
Back to Products
