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Non-return valve
Non-return valves Non-return valve

Non-return valve
2
CHARACTERISTICS Oil viscosity υ = 30 mm /s
∆p = f (Q) Performance limit Sandwich construction NG10
p [bar] Q = 100 l/min ISO 4401-05
12 K0280 ◆ max
◆ p = 350 bar
max
9
6
3
DESCRIPTION APPLICATION
0
0 10 20 30 40 50 60 70 80 Q [l/min] Non-return valves allow a free flow in one direction and close off Non-return valves in the P port prevent the pump from backward
the opposite direction by metallically sealing. In the free flow direc- rotation. When installed in the T port, the spring controlled opening

tion, the volume flow opens the spring loaded seat cone. In the pressure prevents a hydraulic system from draining to the tank.

opposite direction, the spring keeps the valve closed. The required

opening pressure depends on the spring force.
DIMENSIONS
SYMBOL
64 ARVA10 ARVB10 ARVAB10
40 10 40,5
21,5 19
A P T B A P T B A P T B

T
ARVP10 ARVT10 ARVPT10

A B
31 21 32,5 45
5,5 A P T B A P T B A P T B
∅

P TYPE CODE
A RV 10 - #
17,8 International standard interface ISO
Non-return valve
Type list / Function
in A A in B B in A and B AB
in P P in T T in P and T PT
A
PARTS LIST PT B A PT B A PT B Nominal size 10
Position Article Description Sealing material NBR
FKM (Viton) D1
10 160.2093 O-ring ID 9,25x1,78 NBR 872 Z604
A PT B A PT B A PT B Design index (subject to change)
2.7-50

SEALING MATERIAL STANDARDS
Technical explanation see data sheet 1.0-100 A PT B A PT B NBR or FKM (Viton) as standard, choice in the type code Mounting interface ISO 4401-05
PT
B
A
Contamination ISO 4406
efficiency
SURFACE TREATMENT
◆ The sandwich bodies made of steel are zinc-phosphated

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 2.7-41E 2/2 www.wandfluh.com Illustrations are not binding Data subject to change 1/2 Edition: 18 45 2.7-50 E
CH-3714 Frutigen Edition 21 32
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