Pressure relief valves


Pressure relief valves are installed generally in derivation between a pressurized line and the tank.

Relief valves are normally closed elements for the pressure control used to:

- limit the pressure in the circuit at the setting value;

- protect the other elements (pumps, cylinders, motors, other valves) from pressure peaks that could damage them.

When setting pressure is reached, the relief valve connects the line where is installed to the tank, avoiding to exceed the setting value in that line.

HBS relief valves are available in two versions:

- direct;

- piloted.

For greater flows, it is better to use the piloted valve, because the direct valve would require the use of  a bigger body and a bigger spring, causing cumbersome problems, setting difficulty and response slowness.

Moreover, HBS pressure relief valves can be:

- single, to control the pressure on only one line of the circuit.

CODE

L/min

Description

Max press.

PDF

Body material

Conn.

Click to enlarge image

A010301.01.00

A010301.02.00

A010401.01.00

A010401.02.00

A010601.01.00

A010601.02.00

50lpm


65lpm


150lpm

Pressure relief valve

ZInc plated steel

400 Bar

G3/8"


G1/2"


G3/4"

B010401.11.00

B010401.12.00

B010601.11.00

B010601.12.00

  

65lpm


150lpm

  

Pressure relief valve

Aluminium

350 Bar

G1/2"


G3/4"

A010401.05.00

A010601.04.00


  

70lpm

100lpm

  

Pressure relief valve

Zinc plated steel

350 Bar
400 Bar

G1/2"

G3/4"

A010401.04.00


  

90lpm

  

Pressure relief valve

Zinc plated steel

350 Bar
 

G1/2"

  

A010302.01.00

A010302.02.00

A010402.01.00

A010402.02.00

50lpm


65lpm

Dual cross-over relief valve

ZInc plated steel

400 Bar

G3/8"


G1/2"

A010302.11.00

A010302.12.00

A010402.11.00

A010402.12.00

50lpm


65lpm

  

Dual cross-over relief valve

ZInc plated steel

400 Bar

G3/8"


G1/2"

A010302.13.00

  

30lpm

Dual cross-over relief valve

ZInc plated steel

400 Bar

G3/8"

A010804.01.00

  

200lpm

Dual cross-over relief valve

ZInc plated steel

350 Bar

G1"

B010402.01.00
B010402.02.00

  

30lpm

  

Dual cross-over relief valve

Aluminium

250 Bar

G1/2"

B010404.01.00

  

30lpm

  

Dual cross-over relief valve

Aluminium

250 Bar

G1/2"

A010802.01.00

  

200lpm

  

Dual cross-over relief valve

Zinc plated steel

400 Bar

G1"

B0160040.03.00

30lpm

  

Dual cross-over relief valve

Aluminium

250 Bar

G1/2"

A010802.01.00

  

200lpm

  

Dual cross-over relief valve

Zinc plated steel

400 Bar

G1"

A013807.01.00

A013807.02.00

  

30lpm

Pressure relief valve cartridge pressure compensated

  

500 Bar

CAVITY

M20x1,5
HBS.38.S.02A

A013807.03.00

A013807.04.00

A013807.08.00

  

30lpm

Pressure relief valve cartridge

  

500 Bar

CAVITY

M20x1,5

HBS.38.S.02A

A013807.11.00

RPEC

  

80lpm

Pressure relief valve cartridge

  

350 Bar

CAVITY

M20x1,5

HBS.38.M.02A

T11A

C019901.01.00

C019901.02.00

  

150lpm

Pressure relief valve cartridge

  

350 Bar

CAVITY

1-14 UNS

HBS.99.S.02A

A019307.01.00

A019307.02.00

  

3lpm

Pressure relief valve cartridge

  

350 Bar

CAVITY

HBS.93.U.02A

SAE8

  

C010203.01.00


  

60lpm

Dual cross-line relief valve cartridge

  

250 Bar

CAVITY

HBS.93.U.02A

SAE8

  

C019902.02.00

C019902.04.00

  

200lpm

Pressure relief valve cartridge

  

350 Bar

CAVITY

1-14UNS-2A

HBS.99.S.02B

C019902.01.00

C019902.02.00

  

200lpm

Pressure relief valve cartridge

  

350 Bar

CAVITY

1-1/16-12UN 2A

HBS.96.U.02A

C010801.01.00


  

240lpm

Pressure relief valve cartridge

  

420 Bar

CAVITY

G1"

HBS.08.G.02A

C010601.01.00


  

120lpm

Pressure relief valve cartridge

  

210 Bar

CAVITY

G3/4"

HBS.06.G.02A

PV10187.00.00

RDBA

45lpm

Pressure relief valve cartridge direct acting

  

350 Bar

CAVITY

T-162A


  

PV10412.00.00

RDDA

  

95lpm

Pressure relief valve cartridge direct acting

  

350 Bar

CAVITY

M20x1,5

T-10A