Type DR 10 DP is a pressure reducing valve which is used to control the pressure. The fact that Huade® pressure valves can replace the same series products offered by Rexroth is mainly due to the long-term cooperation with Rexroth. Compared with other similar brands, Huade® products are more advanced in technology and more durable. The prices of these pressure reducing valves are relatively cheap. The factory is a national key enterprise and has a high reputation in China .
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Max.operating pressure(Port P) (MPa) |
up to 31.5 |
|
Max. secondary pressure (Port A) (MPa) |
up to2.5; up to7.5; up to 15.0; up to 21.0; up to31.5 |
|
Max.back pressure( Ports T(Y)) (MPa) |
up to 16 |
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Max.flow (L/min) |
up to 80 |
|
Pressure fluid Mineral oil |
Mineral oil (for NBR seal)or phosphate ester(for FPM seal) |
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Viscosity range(mm ²/s) |
10~800 |
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Pressure fluid-temperature range(℃) |
-30 to +80 |
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Degree of contamination (um) |
Maximum permissible degree of contamination of the fluid is to NAS 1638 class 9. |
|
Weight (kg) |
approx.3 |
Features:
▶ For subplate mounting
▶ 4 pressure ranges
▶ 4 setting elements
. Rotary knob
. Hex. head sleeve with protective cap
. Lockable rotary knob with scale
. Rotary knob with scale
▶ With pressure gauge port
▶ Optional non return valve
▶ Porting pattern to DIN 24 340, form D, ISO 5781 and CETOP - RP 121H
Application:
Pressure reducing valve type DR 6 DP is used to reduce the system pressure.
The valve type DR 10 DP is a direct operated valve of 3 way design, with a pressure relief function on the reduced pressure side.
Pressure setting is by means of the pressure setting element (1).
At rest, the valve is normally open, and fluid can flow unhindered from port B to port A. Pressure in port A is also present on the end of the spool (2), via control line(4), opposing the compression spring (3). When the pressure in port A reaches the pressure level set at spring (3), spool (2) moves to the control position and holds the pressure in port A constant.
Fluid to control the valve is taken from port A via control drilling.
If the pressure in port A rises still further due external forces, the spool (2) is moved still further towards the compression spring (3).
This causes a flow path to be opened over control land(5) in the control spool(2) to tank (port Y) . Sufficient fluid then flows to tank to prevent any further rise in pressure.
The spring chamber (6) is drained to tank externally via port Y.
An optional non return valve (7) is available to allow free flow from port A to port B.
A pressure gauge connection(8), permits the secondary pressure to be monitored.
structure of DR10DP 1- 40B
Symbols of DR10 DP
Address
No. 27, Yangsha Road, Huilong Town, Nantong City, Jiangsu Province, China
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