BOSCH-REXROTH压力截止阀结构示意图

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
Sandwich plate valve for use in vertical stackings
● as angle valve
(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.
● as straight-through valve
Porting pattern according to ISO 4401-03-02-0-05 and NFPA T3.5.1 R2-2002 D03
Various one and two-channel blocking functions
Perfect leak-tightness due to poppet made of high-performance plastic

BOSCH-REXROTH压力截止阀结构示意图

Section 1: Type Z12 6 F (straight-through valve)

Section 2: Type Z1S 6 BA (angle valve)