Pipeline ancillaries Depressurisation valves
10
Dimensions/weights (approximate) in mm and kg Type A B
C
D
Overall length
Installed
A/F width
Weight
BDV1
62
54
24
-
0.17
BSP
62
54
24
40
0.20
BDV2
NPT
62
54
24
44
0.20
BDV2 shown
D
2
B
A
Recommended tightening torques
or mm
Item Part
N m
2 5
Valve screw
17 mm A/F
22 - 25
Compression fitting nipple
14 mm A/F
8 - 10
C
Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions (IM-P600-02) supplied with the product. Warning - Pressure BDV1 and BDV2 valves are generally used to depressurise a system/vessel prior to maintenance or removal. Do not assume that the system has depressurised even if a pressure guage indicates zero. Consider the direction of the depressurised flow and ensure that this will not cause a hazard to yourself or others. Suitable tubing should be fitted to ensure a safe discharge. Warning - Temperature Allow time for temperature to normalise after depressurisation to avoid danger of burns. Installation note: Where BDV1 or BDV2 depressurisation valves are fitted to PC3_ or PC4_ pipeline connectors see IM-P128-06. Maintenance note: The BDV is a maintenance free product with long life expectancy. Disposal This product is recyclable. No ecological hazard is anticipated with the disposal of this product, providing due care is taken. How to order Example: 1 off Spirax Sarco DN15 BDV1 depressurisation valve having austenitic stainless steel body with male pipe end Schedule 80 connections to ANSI B 16.11 Class 3000.
7.14.5
10.14 4
TI-P600-01 CMGT Issue 10
Page 4 of 4
BDV1 and BDV2 Blowdown/Depressurisation Valves
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