Обратные клапаны с пилотным управлением Z2S 10

Description Size 10 Component series 3X Maximum operating pressure 315 bar Maximum flow 120 l/min Features Sandwich plate valve for use in vertical stackings Porting pattern according to ISO 4401-05-04-0-05 and ISO 4401-05-05-0-05 For the leakage-free blocking of one or two actuator ports, optional Various cracking pressures With pre-opening (standard); without pre-opening (optional) Check valve installation sets available individually Corrosion-protected design Product description The isolator valve type Z2S is a releasable check valve in sandwich plate design. It is used for the leakage-free blocking of one or two actuator ports, also in case of longer standstill times. In direction A① to A② or B① to B②, there is a free flow; in the opposite direction, the flow is blocked. If, for example, there is a flow through the valve in direction A① to A②, the control spool (1) is moved in the direction of the B side, opens the ball seat valve (2) and then pushes the poppet (3) off its seat. Hydraulic fluid can now flow from B➁ to B➀. In order to allow the ball seat valve (2) to be safely closed, the control spool (1) must be hydraulically unloaded (see circuit example). Pre-opening Due to the pre-opening, there is a damped decompression of the pressurized liquid. Thus, possible switching shocks are avoided. The two-stage set-up with an increased control open ratio means even low pilot pressure can be unloaded securely. Type Z2S 10 ‒… (with pre-opening) Type Z2S 10 A… Type Z2S 10 A…SO40 Type Z2S 10 A…SO60 Type Z2S 10 ‒…SO41 (without pre-opening) Type Z2S 10 ‒…SO14 Circuit example, schematic 1 Control spool, area A 2 2 Ball, area A 3 4 Poppet, area A 1 5 Stop 6 Control spool, area A 4 ① component side ② plate side Notice: In valves without pre-opening, sudden unloading of pent-up pressure volume may occur. Resulting switching shocks may lead to premature wear on installed components, as well as noise formation. Notice: Deviating from ISO 4401, port T is called TA, port T1 is called TB. Type code 01 02 03 04 05 06 07 08 09 10 11 Z2S 10 – 3X / * 01 Check valve, Sandwich plate design Z2S 02 Size 10 10 Leakage-free blocking 03 In channel A and B – In channel A A In channel B B Cracking pressure 04 1,5 bar 1 3 bar 2 6 bar 3 10 bar 4 05 Component series 30 ... 39 (30 ... 39: unchanged installation and connection dimensions) 3X Corrosion resistance (outside; thick film passivation according to DIN 50979 – Fe//Zn8//Cn//T0) 06 None (valve housing primed) no code Improved corrosion protection (240 h salt spray test according to EN ISO 9227) J3 Seal material 07 NBR seals no code FKM seals V Observe compatibility of seals with hydraulic fluid used. (Other seals upon request) Additional pilot oil ports X and Y 1) 08 Without X and Y no code With X and Y XY Spool position monitoring 2) 09 Without position switch no code - Inductive position switch type QM (Version "3" only) Monitored spool position "a" QMA Monitored spool position "b" QMB Special version 10 Without no co