Page 867 - Softbound_Edition_19_en

20
30
20
T
30
30
70 40 Ø 6,5 10 ∗ 60 38 70 A 115 P B 45 To G1/4" 41

Back pressure valve
P Back pressure valve
A B Pressure relief valves
∗ T To
REMARK! SCREW-IN CARTRIDGES INSTALLED Back pressure valve
Detailed performance data and additional hydraulic The following screw-in cartridges are used in either the flange body or Sandwich construction NG4-Mini
specifications may by drawn from the data sheets of the the sandwich body: Wandfluh standard
corresponding installed pressure relief cartridge. ◆ pilot operated or direct operated
Type Designation Data sheet no. ◆ p = 400 bar
54
max
48
BV.PM22 Pressure relief valve ◆ p = 350 bar
N max

CAUTION! 20,8 • pilot operated 2.1-530 Q = 30 l/min
The performace data especially the «pressure-flow-cha- BA.PM22 Pressure relief valve ◆ max
P
racteristic» on the data sheets of the screw-in catridges • direct operated 2.1-540
∗
B
refere to the screw-in cartridges only. The additional press- A BK.PM22 Pressure relief valve
∗
46
60
ure drop of the flange body respectivly sandwich body must To 26,5 • direct operated 2.1-542
T
be taken into consideration. 30 38 DESCRIPTION APPLICATION
Pilot or direct operated backpressure valve in sandwich construc- Backpressure valves with pressure adjustment in A, B, AB or T, are
B=110 tion. The backpressure valve, also called pre-loading valve, opens used for pre-loading of cylinders / motors, resp. for reaching a back

TYPES / DIMENSIONS A=110 the main spool when the adjusted pressure is reached. pressure. Miniature values are used where both, reduced dimen-

Flange construction AB=132 Flange construction sions and weight are important.

B..FA10-P
30 10 20
20
P G1/4"
A P T B ∗ A B
60 T To SYMBOL
38 30 41 Sandwich execution Sandwich execution Sandwich execution Sandwich execution
G..SA..-A G..SA..-B G..SA..-AB G..SA..-T
30 40 Ø 6,5 70 45
Sandwich construction 70 115
B..SA10-P
Sandwich construction in P
A P T B A P T B A P T B A P T B
P
A B
A P T B Note! ◆ Direct operated execution drawn
∗ T
B..SA10-A To ◆ All variants are also available pilot operated
Sandwich construction in A, B or AB
54
A P T B 48
20,8
B..SA10-B B..SA10-AB TYPE CODE
P
∗
A B G S A04 - - - #
∗ 46 T 26,5 60 Back-pressure valve
To
30 38
Direct operated A
A P T B A P T B Pilot operated V
B=110
A=110
AB=132 Type of adjustment Key S
Control knob D
PARTS LIST Cover A
Position Article Description Sandwich construction
10 160.2140 O-ring ID 14,0x1,78 Mounting interface acc. to Wandfluh standard, NG4-Mini
20 238.2406 Plug VSTI G1/4"-ED P T B
A
(only for flange and sandwich plate P) Type list / Function in T T in A A
30 173.4150 Blindplate ABP10 (only for flansch) in A and B AB in B B
Nominal pressure range (p ) of the built-in screw-in cartridge
N
∗ The exterior dimensions or the cartridges can be obtained from the Sealing material NBR
corresponding data sheets FKM (Viton) D1
Technical explanation see data sheet 1.0-100 Design index (subject to change)
2.1-720

A P T B
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 2.1-660E 2/2 www.wandfluh.com Illustrations are not binding Data subject to change 1/3 Edition: 21 26 2.1-720 E
CH-3714 Frutigen Edition 08 48
Page 867

A P T B

A P T B A P T B