Vektek Metric Hydraulic Clamping Catalog

Accessory Valves

Pressure Reducing Valve

Pressure Reducing Valve  Use this valve in double or single acting systems.

 Direct acting, poppet style, adjustable, cartridge construction.  Cartridge construction is the adjustable, direct acting, poppet style.  Model 47-0540-01 set the pressure range from 52 bar (5.2 MPa) to 310 bar (31 MPa). Repeatability ± 7%.  Model 47-0540-03 set the pressure range from 10 bar (1 MPa) to 62 bar (6.2 MPa). Repeatability ± 10%.  Maximum inlet pressure is 350 bar (35 MPa).  Two-port design eliminates the need for third fluid line to drain bypass flow (internal leakage) back to the system reservoir. n Recommended Filtration is 25 Micron (NOM) / 40 Micron (ABS) (minimum). Operation: The Pressure Reducing Valve (PRV) is a Normally Open (N/O) pressure control device. The valve remains open and fluid flows freely to downstream devices (from the valve to devices) until the pressure in the valve reaches the pressure (adjustable) set-point. At the set-point pressure, the valve closes blocking further flow and pressure rise to the downstream devices. If there is a sufficient downstream pressure loss (from the valve to devices), the PRV will re-open, allowing flow to pass through the valve until the pressure again reaches the valve set-point.

U.S. Patent No. 6,581,628

Pressure Reducing Valve

Model No.

Inlet Pressure

Set Pressure

Range Repeat A

The graph shows the pressure drop through a PRV and manifold mount block. Pressure Drop vs Flow VEKTEK METRIC LP & HP PRV PRESSURE DROP VS FLOW

Manifold Mount Valve Assembly

The graphs show the repeat range based on set pressure

350 bar (35 MPa) < 200 bar (20 MPa) >200 bar (20 MPa)

52-310 bar (5.2 -31.0 MPa)

47-0540-01

± 7% 143

10 - 62 bar (1-6.2 MPa)

10 15 20 25 30 35

330

47-0540-03

± 10% 162

20-62 bar (2.0 - 6.2 MPa)

275

220

NOTE: Maximum system flow rate is 5.7 l/min. for all VektorFlo ® special function valves.

165

110

Excess flow voids warranty.

55

0 5

0

Filter Plate For above Valves Model No. 47-0842-02

 47-0540-00 47-0540-01 0 55 110 165 220 275 330 Set Pressure (Bar)  47-0540-04 47-0530-03

0

4

8

12

Order a Filter Plate to protect valve from debris. (More details on M-4)

Flow (l/m)

ILMV705405 REV D

ILMV705406 REV C

M-14

For proper sealing, the mating surface must be flat within 0.08 mm with a maximum surface roughness of 1.6 µm R a

Locknut

Pressure Adjustment Screw

30.2 28.4 HEX

57.2

3X 6.73 Mounting Holes

A Approx.

Manifold Mount High Pressure Feed

Manifold Mount Reduced Pressure Outlet

31.8

6.4

2X 19.6

2X 6.4

38.1

2X 37.1

47.6

53.8

Counterbored for Manifold Mounting 2.29/3.30 feed holes (O-rings and Plugs Provided)

12.7

2X 15.9

G1/4 Port for Optional Gauge in the Reduced Pressure Circuit

47.6

31.8

12.7

G1/4 High Pressure Port (Inlet)

63.5

G1/4 Port Reduced Pressure (Outlet)

25.9

ILMV705407 REV E

Manifold Mount Pressure Reducing Valve Assembly

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