Riegler 639.02

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Inline pressure regulator for water / compressed air applications, without venting, G 1/4, AF 17, Working pressure (pre-set) 2 bar
This regulator is designed as a single-acting diaphragm regulator for installation in any pipe system. It supplies a precise output value regardless of the input pressure.
Since the pressure is preset in the factory and cannot be altered, the product is also tamper-proof.

The regulator protects all downstream devices and components in the pipeline by maintaining a required constant pressure and preventing system pressure fluctuations. In combination with a nozzle, it is ideally suited for cooling or cleaning with water spray or mist.


A [mm] : 34
B [mm] : 52
Flow rate (air) [l/min] : 600
Flow rate (water) [l/min] : 10
Flow rate measurement : At P1 = 10 bar and pressure drop Δp = 0.8 bar (air)
Housing : Nickel-plated brass
Internal parts : Brass
Max. temperature range [°C] : 60
Operating pressure : max. 10 bar (water) / 18 bar (compressed air)
Page No. : HK176
Sealant : NBR
Series : inline
Thread : G 1/4
Working pressure (preset) [bar] : 2
a/f [mm] : 17


Click below to download the product-related documents


Manual-1
Manual-2
Manual-3