1. Hydraulics - Pneumatics
  2. Valve
  3. Poppet check valve
  4. Bosch Rexroth - Industrial Hydraulics

Poppet check valve Z1S 6 series

poppet check valve
poppet check valve
poppet check valve
poppet check valve
poppet check valve
poppet check valve
poppet check valve
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throttle, hydraulic
Other characteristics
spring, standard, anti-corrosion, adjustable, direct-acting

Min.: -20 °C (-4 °F)

Max.: 80 °C (176 °F)


350 bar (5,076.3 psi)


6 mm (0.236 in)

Flow rate

40 l/min (10.57 us gal/min)


Sandwich plate valve for use in vertical stackings - as angle valve - as straight-through valve Porting pattern according to ISO 4401-03-02-0-05 Various one and two-channel blocking functions Perfect leak-tightness due to poppet made of high-performance plastic Corrosion-protected design Easily adjustable to special hydraulic fluids by exchanging the external seal rings With measuring ports, optional As throttle check valve on request The valve type Z1S is a direct operated check valve in sandwich plate design. It is used for the leakage-free blocking in one direction and allows for free flow in the opposite direction. The stroke of the poppet (1) is limited by the plastic socket (2). The installed spring (3) supports the closing movement. When no fluid flows through the valve, the spring (3) keeps the poppet (1) in closed position. In contrast to the straight-through valve (section 1), the angle valve (section 2) links or closes off up to three internal channels. Stop and sealing function are taken over by the plug screw (4). Notice: For all installation positions in which the blue plastic socket (2) is mounted at the plate side ➁, no additional seal ring may be used at this position! At the component side ➀, the seal ring (5) (as usual) seals the assembly installed downstream. The installed plastic socket (2) has a sealing function and may not be removed or damaged. 01 Check valve, Sandwich plate design Z1S Direction of flow 03 Straight-through valve (in the channel) A (A2 → A1) A B (B2 → B1) B A (A1 → A2) C B (B1 → B2) D A and B (A1 → A2) and (B1 → B2) E P and T (P2 → P1) and (T1 → T2) F P (P2 → P1) P T (T1 → T2) T


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