Pilot operated pressure relief valve with one or two pressure relief cartridges

Price: 10.0~100.0 USD
Trade Term: FOB
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Basic Info.
  • Power: Solenoid 
  • Standard or Nonstandard: Standard 
  • Pressure: High Pressure 
  • Material: Stainless Steel 
  • Temperature of Media: Others 
  • Media: Oil 
  • Brand Name: Power 
  • Weight: 1kg 
  • Max. flow: To 60 L/min 
  • Max. operating pressure: 31.5 (Mpa) 
  • Viscosity range: 10~800 mm²/s 
  • Model No.: ZDB 6VB 
  • Place of Origin: Zhejiang  
  • Min.Order: 1 Set/Sets
Supply Capacity
  • Production Capacity: 20000pc/month
  • Packing:carton
  • Delivery Date: 2 weeks
Features of Pilot operated pressure relief valve with one or two pressure relief cartridges:
-Sandwich plate valve
- 4 pressure ranges
- 5 circuit options
-With one or two pressure relief cartridges
- 4 adjustment elements:
. Rotary knob
. Sleeve with hexagon and protective cap
. Lockable rotary knob with scale
. Lockable rotary knob

Functional description of Pilot operated pressure relief valve with one or two pressure relief cartridges:
Pressure relief valve types ZDB and 22DB are pilot operated and are of sandwich plate design. They are used to limit the pressure within a hydraulic system. They basically consist of the housing (7), together with one or two pressure relief valve cartridges.
The system pressure is set by means of adjustment element (4).
At rest, the valve is closed. Pressure in port A acts on the spool (1). At the same time pressure passes through orifice (2) on to the spring loaded side of spool (1) and via orifice (3) to the pilot poppet (6). If the pressure in port A rises above the value set on spring (5), the pilot poppet (6) opens. Fluid can now flow from the spring loaded side of spool (1), orifice (3), and channel (8) into port T. The resulting pressure drop then moves spool (1), causing this to open connection A to T, while the pressure set at spring (5) is maintained.
Pilot oil from the two spring chambers returns externally to tank via port T.

Section of sandwich plate Pilot operated pressure relief valve:
Pilot operated pressure relief Valve, sandwich plate



Technical data of sandwich plate Pilot operated pressure relief valve:
Pressure Fluid
Mineral oil or Phospate ester
Temperature range      ℃
-30~+80
Viscosity range       mm²/s
10~800
Oil contamination level
Recommend a filter with a minimum retention rate of β10≥75
Max. operating pressure   (Mpa)
To 31.5
Max. setting pressure   (Mpa)
to 5\to 10\to 20\to 31.5
Max. flow            L/min
To 60
Weight (kg)
ZDB 6
Approx 1
Z2DB 6
Approx 1.2


Ordering details of sandwich plate Pilot operated pressure relief valve:
Pilot operated pressure relief Valve, sandwich plate



Symbol: 1=valve side, 2=plate side
Pilot operated pressure relief Valve, sandwich plate


Unit dimensions (dimensions in mm)

Type ZDB6 VA...
Pilot operated pressure relief Valve, sandwich plate



Type ZDB6 VB... and Type ZDB6 VP...
Pilot operated pressure relief Valve, sandwich plate

Type Z2DB6 VC... and Type Z2DB6 VD...
Pilot operated pressure relief Valve, sandwich plate
Send message to this supplier
Mr. shawn
Tel: 86-574-87193975
Mobile: +86-18157449077
Enter between 20 to 3,000 chatacters.
Contact Method
Ningbo Power Hydraulic Motor Co., Ltd.
No 588,DANSHUIHONG ROAD, CIXI BINGHAI INDUSTRIALPARK, Ningbo, Zhejiang, China (Mainland) / 315000
Fax: 86-574-23671688
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