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Damper Valve

Wafer Type Damper Valve

Size Range: 1½” to 20” (40 MM to 500 MM)

Standard

Butterfly Valve Specification
Valve Type	Wafer Type Damper Valve with Metal to Metal
Body Type	Short Wafer Type (Sandwiched Between Flanges) Damper
Seat Type	Metal to Metal
End Connection	Wafer Sandwiched (Lug Type On Request)
Pressure Rating	PN 6 (Maximum)
Oper. Temp. Range	-25 °C to 400°C (Depending on MOC) (Upto 600°C On Request)
Seat Leakage	5% Leakage of Full Flow (Class 1 available on Request)
Test Pressure Hydraulic	Body 10 Kg/Cm² & Seat 5 Kg/Cm²
Operation	Hand Lever / Worm Gear Operated

Sr. No.	Description	Material
1	Body	ASTM A 126 Gr. B (Gray Iron) ASTM A 216 Gr. WCB (Cast Steel) ASTM A 536 Gr. 65-45-12 (Ductile Iron) ASTM A 351 Gr. CF8 / CF8M CF3M / CD4MCuN
2	Disc	IS 2062 Gr. B (M.S.) /AISI 304 / AISI 316
3	Shaft	AISI 410 / AISI 304 / AISI 316 / AISI 316L
4	Bush	PTFE
5	Graphoile Ring	Graphite
6	Bering Bush	Metal Bush PTFE Coated
7	Nut & Bolt	S.S. 202 / S.S. 304
8	Bottom Shaft	AISI 410 / AISI 304 / AISI 316 / AISI 316L
9	Graphoile Ring	Graphite
10	Bottom Cover	EN 8

Fabricated Double Flange Damper Valve

Size Range: 8” to 80” (200 MM to 2000 MM)

Butterfly Valve Specification
Valve Type	Centric Disc Damper Valve
Body Type	Double Flange (Wafer Type On Requ.)
Seat Type	Metal to Metal
End Connection	PN 6, EN 1092 -1 (ASME B 16.47 Series B)
Pressure Rating	5 Kg / Cm²
Oper. Temp. Range	400°C (Depending on MOC) (Upto 850°C On Request)
Seat Leakage	5% Leakage of Full Flow (Class 1 available on Request)
Operation	Gear Operated

Sr. No.	Description	Material
1	Body	IS 2062 Gr. B (M.S.) /AISI 304 (Fabricated)
2	Disc	IS 2062 Gr. B (M.S.) /AISI 304 (Fabricated)
3	Shaft	AISI 410 / AISI 304
4	Bearing	Standard
5	Gland Pata	IS 2062 Gr. B (M.S.) /AISI 304
6	Bush	PTFE
7	Graphite Ring	Graphite
8	Hex Bolt	S.S. 304
9	Seat Ring	IS 2062 Gr. B (M.S.) /AISI 304
10	Bottom Shaft	AISI 410 / AISI 304