|
Bronze Blow Off Valve
Specification & Features
- Flanged Ends To BS - 10 Table 'H'.
- It maintains fluid tightness and is easy in operation because of parallel sliding action of discs.
Operation
Spring keeps the disc in parallel position and disc removes any dust or deposits from the body rings. Hence low torque is required to operate the valve. Rack and Pinion arrangement enables to open / close in half turn.
Materials of Construction
|
NAME OF PART
|
MATERIAL
|
STANDARD
|
|
Body & Bonnet
Rack & Pinion
Stuffing Box & Gland
Discs
Body Seat Ring
Stud & Nut
Gasket
Spring
Packing
Key
|
Bronze
Bronze
Bronze
Monel / Stainless Steel
Monal / Stainless Steel
Mild Steel
Steam Jointing
Spring Steel
Graphited Asbestos
Mild Steel
|
BS: 1982 CC 491K
BS: 1982 CC 491K
BS: 1982 CC 491K
Ni-Cu-Alloy / AISI -410 (Hand Facing)
Ni-Cu-Alloy / AISI -410 (Hand Facing)
BS:916
TO Suit Service Conditions.
EN-44 or Equivalent
|
|
Test Pressure (Hydrostatic)
|
Working Pressure (Steam)
|
|
35.15 kg/cm2g / 500 Psig / 34.5 Bar
|
17.58 kg/cm2g / 250 Psig / 17.24 Bar
|
Sizes / Dimensions
|
Sizes
|
Dimensions (mm)
|
|
Inches.
|
mm
|
A
|
B
|
C
|
|
1
|
25
|
169
|
138
|
16
|
|
1-1/4
|
32
|
178
|
157
|
22
|
|
1-1/2
|
40
|
190
|
204
|
22
|
|
2
|
50
|
206
|
226
|
25.4
|
|
2-1/2
|
65
|
228
|
240
|
28.5
|
|
3
|
80
|
254
|
280
|
32
|
|
