Hi-Q Pressure Relief Valve

Hi-Q Pressure Relief Valve




Installation Hole

PERFORMANCE
  • Leakage at Minimum Cracking Pressure: 1 mL/min. max.
  • Leakage at Minimum Shutoff Pressure: 1 mL/min. max.
  • External Leakage: 0 mL
  • Restriction at Minimum Recommended Valve Lift: 600 Lohms
  • Nominal System Pressure: up to 5000 psi
  • System Peak Pressure: 6750 psi max.
  • Non-Relief Direction Differential Pressure: 500 psid max
  • Nominal Weight: 200 grams
(Valve performance on MIL-PRF-83282 or MIL-PRF-5606 at 85°F +/- 15°F )

MATERIALS
PART
MATERIAL
SPECIFICATION
Body
304 CRES
AMS 5639
Poppet Retainer
304 CRES
AMS 5639
Spring Seat
304 CRES
AMS 5639
Spring Seat Vent
316L CRES
Sintered
Spring Guide
304 CRES
AMS 5639
Seat
15-5PH CRES
AMS 5659
Piston
Nitronic 60
AMS 5848
Springs
17-7PH CRES
AMS 5678
Poppet
Polyimide
-
Piston Seals
Viton
AMS-R-83485
PTFE
AS 8791
Finish: All CRES Parts Passivated

LEE PART NUMBER
MINIMUM CRACKING PRESSURE (PSID)
FLOW POINT
MINIMUM SHUTOFF PRESSURE (PSID)
LOHM RATE
MIN. FLOW (GPM)
AT (PSID)
PRVA0812010H
1000
75
11.3
1500
850
PRVA0812012H
1200
75
11.8
1650
1000
PRVA0812014H
1400
75
12.7
1900
1200
PRVA0812022H
2200
75
15.1
2750
2000
PRVA0812024H
2400
75
15.9
3000
2200
PRVA0812032H
3200
75
18.5
4050
3000
PRVA0812034H
3400
75
19
4250
3200
PRVA0812042H
4200
100
15.8
5250
4000
PRVA0812044H
4400
100
16.2
5500
4200
PRVA0812052H
5200
100
17.6
6500
5000
PRVA0812054H
5400
100
17.9
6750
5200
NOTE: Pressures in excess of 500 psid in the non-relief flow direction may cause damage to the valve's critical sealing surfaces.

Download a PDF file of the Product Data Sheet


For more information, please send us your application information via our ASK LEE service. Or contact our application engineers in the USA at 1-800-LEE-PLUG or our representatives around the world.
Copyright 09/2011 by The Lee Company, USA
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