Cast Steel Parallel Slide Blow Oﬀ Valve (Flanged)

1. Product Summary

Parameter	Specification
Product	Cast Steel Parallel Slide Blow Oﬀ Valve (Flanged)
Design standard	Per datasheet
Material	Cast Steel
Service	Steam, Water
Max working temperature	425°C

Flanged Ends to BS 10 Table ‘J’
Maintains fluid tightness and is easy in operation because of sliding action of discs
Discs are kept in close contact with body rings by means of a spring when the valve is under pressure
Premium Quality lubricated Gland Packing, Bolted Bonnet
Valve is operated by means of Rack and Pinion arrangement, in such a manner that valve is opened fully with half turn of the box key
Gland forms a locking guard which prevents removal of the key unless the valve is closed

Test	Pressure
Shell	48 kg/cm²g (700 psig)
Seat	24.50 kg/cm²g (350 psig)

P.No.	Part	Material	Spec.	Qty.
1	Bonnet Cast Steel IBR 73 – 80 Gr. B 1	—	—	1
2	Rack	Bronze	IBR 282 (a) (iv) Gr. B	1
3	Studs Alloy Steel ASTM A 193 Gr. B7 As Reqd.	—	—	1
4	Nuts H.T Steel ASTM A 194 Gr. 2H As Reqd.	—	—	1
5	Body Cast Steel IBR 73 – 80 Gr. B 1	—	—	1
6	Gasket Steam Joining Sheet IS 2712 Gr. W/3 1	—	—	1
7	Body Seat Ring	Stainless Steel	ASTM A 276 Type 410	1
8	Male Disc	Stainless Steel	ASTM A 276 Type 410	1
9	Female Disc	Stainless Steel	ASTM A 276 Type 410	1
10	Spring	Stainless Steel	IS 4454 Part 4 Gr. 2	1
11	Pinion	Stainless Steel	ASTM A 276 Type 410	1
12	Nuts H.T Steel ASTM A 194 Gr. 2H As Reqd.	—	—	1
13	Studs Alloy Steel ASTM A 193 Gr. B7 As Reqd.	—	—	1
14	Gland	Bronze	IBR 282 (a) (iv) Gr. B	1
15	Gland Packing	PTFE / graphite rings	—	—
16	Stuffing Box	Bronze	IBR 282 (a) (iv) Gr. B	1
17	Gasket Steam Joining Sheet IS 2712 Gr. W/3 1	—	—	1
18	Nuts Alloy Steel ASTM A 193 Gr. B7 As Reqd.	—	—	1
19	Studs H.T Steel ASTM A 194 Gr. 2H As Reqd.	—	—	1