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Ningbo Power Hydraulic Motor Co., Ltd.
Ningbo Power Hydraulic Motor Co., Ltd.  

Gold Index: 20032

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Pressure reducing valve with sandwich plate 

Price: 10.0~100.0 USD 
Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: ZDR10DB...40B/
Packing: carton
Power: Solenoid
Pressure: High Pressure
Material: Stainless Steel
Media: Oil
Secondary pressure: 21 Mpa
Back pressure: 15Mpa
Production Capacity: 20000pc/month
Delivery Date: 2 weeks
Standard or Nonstandard: Standard
Structure: Pressure Reducing
Temperature of Media: High Temperature
Brand Name: Power
Max. flow: 50 L/min

-Sandwich plate valve
- 4 pressure ranges
- 5 circuit options
-With one or two pressure relief cartridges
- 4 adjustment elements

Functional description of Pressure reducing valve direct operated
The pressure reducing valve type ZDR 10 D.. is a 3-way direct operated valve of sandwich plate design with a pressure relief function on the secondary side. It is used to reduce the system pressure.
The pressure reducing valve basically consists of the housing (1), the control spool (2), a compression spring (3),and the adjustment (4) as well as an optional check valve. The secondary pressure is set by the pressure adjustment element (4).
Model "DA"
At rest, the valve is normally open, and fluid can flow unhindered from port A to port A1. The pressure in port A1 is at the same time via the control line (5) present at the spool area opposite to the compression spring (3). When the pressure in port A1 exceeds the pressure level set at the compression spring (3), the control spool (2) moves into the control position against the compression spring (3) and holds the set pressure in port A1 constant. The control pressure and pilot oil are taken from port A1 via control line (5).
If the pressure in port A1 rises still further due to external forces, the
control spool (2) is moved still further towards the compression
spring (3).
This causes a flow path to be opened at port A1 via control land (6) on the control spool (2) and housing (1) to tank (port TB). Sufficient fluid then flows to tank to prevent any further rise in
pressure. The spring chamber (7) is always drained to tank externally via port TA .
A pressure gauge connection (8) permits the secondary pressure at the valve to be monitored. It is only possible to fit a check valve for free flow in ports A1 to A in version "DA".
Models "DP" and "DB"
In model "DP", the pressure is reduced in port P1. The control pressure and the pilot oil is taken internally from port P1. In model "DB", the pressure in port P1 is reduced, and the pilot oil taken from port B.
When the directional valve is in the switched position P to A, pressure in port B must not exceed the set secondary pressure. Otherwise, pressure in port A will be reduced. If used without a directional valve, TA and TB must be interconnected (e.g. in the cover plate).

Features of Pressure reducing valve with sandwich plate:
- Sandwich plate design
- Pressure reduction in ports A, B or P
- 3 adjustment elements:
. Rotary knob
. Hex. head screw with protective cap
. Lockable rotary knob with scale
- 4 pressure ratings
- Check valve, optional

Section of Pressure reducing valve direct operated

Pressure reducing valve direct operated sandwich plate

Ordering details:
Pressure reducing valve direct operated sandwich plate

Technical data:
Weight                (kg)
Pressure Fluid
Mineral oil or Phospate ester
Temperature range      ℃
Viscosity range       mm²/s
Degree of fluid contamination        Mpa
Max. permissible Degree of fluid contamination is to NAS 1638, class 9β10≥75
Max. operating pressure(inlet)        Mpa
Secondary pressure                Mpa
To 21
Back pressure                   Mpa
To 15
Max. flow            L/min

Unit dimensions (dimensions in mm)
Pressure reducing valve direct operated sandwich plate

Pressure reducing valve direct operated sandwich plate
Mr. shawn
skype Mr. shawn

Tel: 86-574-87193975
Fax: 86-574-23671688
Mobile: 86- 181 5744 9077
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Company Info

Ningbo Power Hydraulic Motor Co., Ltd. [China (Mainland)]

Business Type:Manufacturer, Trading Company, Agent, Distributor/Wholesaler, Service
City: Ningbo
Province/State: Zhejiang
Country/Region: China (Mainland)

shawn:   skype

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