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

GENERAL SPECIFICATIONS HYDRAULIC SPECIFICATIONS
Non-return valve
Designation Non-return valve Working pressure p = 350 bar Sandwich construction NG6
max
Mounting Sandwich construction Opening pressure p = 2,2 bar • Q = 80 l/min
a max ISO 4401-03
Nominal size NG4-Mini according to Wandfluh Maximum volume flow Q = 20 l/min • p max = 350 bar
max
standard Leakage oil Seat tight, max. 0,15 ml / min (approx. 3
Actuation None drops / min) at 30 cSt
Ambient temperature -25…+70 °C Fluid Mineral oil, other fluid on request
Weight 0.46 kg Viscosity range 12 mm /s…320 mm /s DESCRIPTION FUNCTION APPLICATION
2
2
In the free flow direction, the volume flow opens
Non-return valves allow the volume flow in one
Sandwich type pilot operated non-return valve
Temperature range -25…+70 °C (NBR) NG6 with interface according to ISO 4401-03. the spring loaded valve seat. The spring keeps direction and shuts off in the opposite direction,
fluid -20…+70 °C (FKM) The valves allow a free flow in one direction the valve closed in the opposite direction. The preventing the pressurised fluid from flowing
Contamination Class 20 / 18 / 14 and shut off in the opposite direction. 6 different opening pressure required depends on the back. Non-return valves in the P port prevents
standard versions are available. The steel sand-
backward rotation of the pump. When installed
spring force.
efficiency wich body is phosphatised. Good performance in the T port, the spring controlled opening
Filtration Required filtration grade ß 10…16 ≥ 75, data and attractive design are the hall marks pressure prevents a hydraulic system from
see data sheet 1.0-50 of this quality product. draining to the tank. Sandwich type elements
NG6 make this a highly flexible system.
PERFORMANCE SPECIFICATIONS ACCESSORIES
Oil viscosity u = 30 mm /s Fixing screws Data sheet 1.0-60 TYPE CODE
2
∆p = f (Q) Pressure drop volume flow characteristic Threaded subplates Data sheet 2.9-10 RNNS A06 - #
p [bar] Multi-station subplates Data sheet 2.9-50
30 K0083 Module type manifold blocks Data sheet 2.9-90 Non-return valve, sandwich construction
25 International standard interface ISO, NG6
20 Technical explanations Data sheet 1.0-100
15 Hydraulic fluids Data sheet 1.0-50 Type list / Function
10 Filtration Data sheet 1.0-50 in P P in T T in P and T PT
5 in A A in B B in A and B AB
0 in AV AV in BV BV in AV and BV ABV
0 5 10 15 20 Q [l/min]
Design-Index (Subject to change)
64
GENERAL SPECIFICATIONS 10 40,5 HYDRAULIC SPECIFICATIONS
DIMENSIONS HYDRAULIC CONNECTION Description 40 Non-return valve Fluid Mineral oil, other fluid on request
19
Nominal size NG6 acc. to ISO 4401-03 21,5 Contamination efficiency ISO 4406:1999, class 20/18/14
Construction Sandwich construction (Required filtration grade ß 10…16≥75)
54 29.5 28
5.5 Mounting 4 holes for hexagon socket screw M5 T refer to data sheet 1.0-50/2
14 or studs M5 Viscosity range 12 mm /s…320 mm /s
2
2

Connections Connection plates Fluid temperature -20…+70 °C
P P Multi-station flange subplate Peak pressure p = 350 bar
B
max
Longitudinal stacking system A Opening pressure 21 32,5 45 p = 2 bar
31
5,5
A B Ambient temperature -20…+50 °C Max. volume flow Q ö = 80 l/min
A B 14 27 max
40 Mounting position any
∅
T T0 Fastening torque M = 5,5 Nm (Quality 8.8)
D
T To Weight m = 0,85 kg P

20 10 SYMBOLS / TYPES 17,8

RNNSA06-P RNNSA06-A RNNSA06-AV
PARTS LIST INSTALLATION NOTES
Position Article Description Mounting type Sandwich mounting
10 160.2052 O-ring ID 5,28 x 1,78 (NBR) 3 fixing holes for A PT B RNNSA06-T A PT B RNNSA06-B A PT B RNNSA06-BV
160.6052 O-ring ID 5,28 x 1,78 (FKM) socket head screws or studs M5
20* 160.2067 O-ring ID 6,75 x 1,78 (NBR) Mounting position Any
160.6067 O-ring ID 6,75 x 1,78 (FKM) Tightening torque Fixing screws M = 5,2 Nm (screw
D
quality 8.8, zinc coated) A PT B A PT B A PT B
Note! * in A or / and B, when non-return valve in A, B or AB. In RNNSA06-PT RNNSA06-AB RNNSA06-ABV
T, when non-return valve in T.
A PT B A PT B A PT B
Wandfluh AG Postfach CH-3714 Frutigen
Tel. +41 33 672 72 72 Fax +41 33 672 72 12 sales@wandfluh.com
Wandfluh AG Tel. +41 33 672 72 72 E-mail: sales@wandfluh.com Illustrations not obligatory Data sheet no.
www.wandfluh.com Illustrations are not binding Data subject to change 2/2 Edition: 18 44 2.7-20 E Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 2.7-41E 1/2
CH-3714 Frutigen Edition 21 32
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