Page 921 - Softbound_Edition_19_en

22
14
P
Ø 9,5 5,5 Ø 24 10 27 14 T A 28 B To G1/4" 20 40
22 ∗ 20
8 32 82 38
40 120
Pressure reducing valve
Pressure reducing valves Pressure reducing valves
24
22
CHARACTERISTICS oil viscosity υ = 30 mm /s SCREw-IN CARTRIDGES INSTALLED Pressure reducing valve
2
P
5,5 A B G1/4" The following screw-in cartridges are used in either the flange body or Flange- and sandwich construction
Ø ∆p = f (Q) Pressure loss/flow characteristics 40 the sandwich body:
∗
T
To
22 over non-return valve 26,8 • Q max = 20 l/min NG4-Mini ®
p [bar] 82 38 Type Designation Data sheet no. • p = 315 bar
40 20 K0166 120 MV.PM22 Pressure reducing valve • p max = 200 bar
• pilot operated 2.2-530 N red max
15
18
10 DESCRIPTION FUNCTION APPLICATION
P G1/4" REMARK! Flange or sandwich type directly operated The spool is held in the home position by the Pressure reducing valves are used for keeping
5,5 5 A B
Ø 40 Detailed performance data and additional hydraulic 3-way pressure reducing valve NG4-Mini in spring. The connection to the consumer is fully the pressure constant in a consumer, irrespec-
∗ T To 28,5 accordance with Wandfluh standard. The open. The reduced pressure can be adjusted at tive of pressure fluctuations on the supply side.
0 20 specifications may by drawn from the data sheets of the valve reduces the inlet pressure to a preset the adjustment spindle, irrespective of the inlet If several consumers are used, the reduced
0 5 10 15 20 Q [l/min] corresponding installed cartridge.
40 83 39 output pressure. The integrated pressure relief pressure. If the reduced pressure increases, pressure can be set individually with the aid if
122 function prevents the reduced pressure from it displaces the valve towards the spring. The one pressure control valve for each consumer.
CAUTION! being exceeded as a result of external forces. volume flow at the valve inlet is then throttled, Generally speaking, pressure control valves
The performace data especially the „pressure-flow-cha- Two types of setting and four pressure stages controlling the reduced pressure. If forces are used for reducing a hydraulic pressure to
racteristic„ on the data sheets of the screw-in catridges are available. A pressure gauge connection is acting on the consumer allow the reduced a lower level. The integrated pressure relief
refere to the screw-in cartridges only. The additional press- provided in the reduced connection. A bypass pressure to be increased above the set value, function obviates the need for any additional
ure drop of the flange body respectivly sandwich body must non-return valve plate for the flange valve – for the spool is displaced until the valve inlet closes pressure relief valve in the reduced pipe. Di-
be taken into consideration. free flow from A to P – can be ordered separa- and the tank port opens. The pressure increase rectly operated pressure reducing valves also
tely. The flange valve body is painted, the other is then limited to a low value, controlled by keep the reduced pressure stable, even under
parts are zinc-nickel coated. the spring. very difficult operating conditions. Mini-4 valves
TYPES / DIMENSIONS are used where both, reduced dimensions and
Flange Sandwich MV.FA04-P/A weight are important.
MV.FA04-P/A MV.SA04-P 10 20
A P red T B 24 28 TYPE CODE
22 14
B DRV d 4 / #
9,5 5,5 P G1/4" Mounting interface acc. to Wandfluh standard,
Ø Ø ∗ 27 14 T A B To 40 Pressure reducing valve
A P T A P T B 22 20
MV.SA04-A 8 32 82 38 Direct operated
A P T B 40 120
Type list / function
Flange design N
24 Sandwich design, P in P
red
22 Sandwich design, P in A A
MV.SA04-P Sandwich design, P in B B
red
A red P T B P G1/4" red
5,5 A B
Ø T To 40 Interface NG4-Mini
MV.SA04-B 22 ∗ 26,8
A P T B Type of adjustment Key
40 82 38 Control knob D
120 Cover H
18 Pressure range p 40 bar 40
MV.SA04-A N red 80 bar 80

A P T B red
P G1/4" 160 bar 160
5,5 A B 200 bar 200
Ø T To 40
20 ∗ 28,5
Design-Index (Subject to change))
40 83 39
122
GENERAL SPECIFICATIONS HYDRAULIC SPECIFICATIONS
Description Direct operated pressure control valve Fluid Mineral oil, other fluid on request
PARTS LIST For sandwich red.pressure in B cartridge is located on B-side
Nominal size NG4-Mini acc. to Wandfluh standard Contamination efficiency ISO 4406:1999, class 18/16/13
Position Article Description ∗ The total lengths depends on the cartridge type, Construction Flange- or sandwich (Required filtration grade ß 6…10≥75)
see data sheet 2.2-530. Mounting 3 mounting holes for zyl. screws M5 or refer to data sheet 1.0-50/2
double ended screws M5 Viscosity range 12 mm /s…320 mm /s
2
2
10 160.2052 O-ring ID 5,28x1,78 ACCESSORIES Connection Threaded connection plates Fluid temperature -20...+70 °C
20 238.2406 Plug VSTI G1/4"-ED Threaded connection plate and multi-flange subplates Reg. 2.9 Multi-flange subplates Peak pressure p max = 315 bar
Bypass non-return valve BDRVP4 Longitudinal stacking system Tank load in connection T p T max = 50 bar
Ambient temperature -20…+50 °C Nominal pressure ranges p N red = 40 bar, p N red = 160 bar
Mounting position any p = 80 bar, p = 200 bar
A P red T B N red N red
Fastening torque M = 5,5 Nm (quality 8.8) Opening pressure p ö = 2,2 bar
D
Weight m = 1,0 kg to non-return valve
Volume flow Q = 0…20 l/min

Technical explanation see data sheet 1.0-100
A P T A P T B
Wandfluh AG Tel. +41 33 672 72 72 E-mail: sales@wandfluh.com Illustrations not obligatory Data sheet no. Wandfluh AG Tel. +41 33 672 72 72 E-mail: sales@wandfluh.com Illustrations not obligatory Data sheet no.
Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 2.2-620E 2/2 Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 2.2-630E 1/2
P T B
CH-3714 Frutigen A Edition 05 04 CH-3714 Frutigen Edition 21 30
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A red P T B

A P T B

A P T B red