Barksdale Series 5620 User Manual
Page 4
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Barksdale, Inc. 3211 Fruitland Avenue, Los Angeles CA 90058 (800)835-1060 www.barksdale.com Bulletin No. 272350-A, 07-05-13
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devices in system should be refitted and fully functional. Please observe all relevant system start-up
safety rules.
3.7 Unapproved usage
The operating reliability and safety of the valve is only valid if used in accordance with its specified
technical limits as described in the Installation and operating instructions. Any other use is not in
conformity with the regulations, and Barksdale will not be liable for any resulting damages. The
installation and operating manual does not invalidate general regulations and standards not referred to
general technical rules should be observed.
4.0
TECHNICAL DATA
4.1 SPECIFICATIONS:
Table 2: Specification
Working Pressure:
See Table 1 for working pressure
Flow Capacity, Cv:
See Table 3
Back Pressure:
Must not exceed 250 psi (17.2 bar)
at return port for satisfactory
operation.
Pressure Drop:
14 psi (0.96 bar at 20 ft/sec)
see Supplemental guide available
at website www.barksdle.com/en
Proof Pressure:
1‐1/2 times working pressure
Burst Pressure:
2‐1/2 times working pressure
Media Temperature
Range:
‐40° to +250°F (‐40° to +121°C)
Rotor:
400 series stainless steel
Pressure Seals:
400 series stainless steel
Shaft:
Stainless steel
Body:
Bronze
Housing:
Ductile Iron
Standard o‐Ring
Buna N, others available
Back‐up Rings:
Teflon
®