Дроссельный обратный клапан Z2FS 16

Description Size 16 Component series 3X Maximum operating pressure 350 bar Maximum flow 250 l/min Features Sandwich plate valve Porting pattern according to ISO 4401-07-07-0-05 Flow limitation of 2 actuator ports Adjustment type: Spindle with hexagon socket Meter-in or meter-out throttling Product description The valve type Z2FS is a throttle check valve in sandwich plate design. It is used for the flow limitation of one or two actuator ports. Two symmetrically arranged throttle check valves limit flows (by adjustable throttle spools) in one direction and allow free return flow in the opposite direction. In case of supply throttling, the hydraulic fluid is directed through channel A➀ via throttling point (1) to actuator A➁. The throttle spool (2.1) can be axially adjusted via the spindle (3) for adjustment of the throttling point (1). Simultaneously, the hydraulic fluid in channel A➀ is directed via the bore (4) to the piston side (5). The active pressure and the spring force retain the throttle spool (2.1) in throttle position. The hydraulic fluid return flow from actuator B➁ displaces the throttle spool (2.2) and enables the unobstructed flow as check valve. Depending on the version ("S" or "S2"), the throttling effect may occur in supply or discharge. Flow limitation For actuator velocity adjustment, the throttle check valve is installed between the directional valve and the subplate. Supply throttling ➀ component side ➁ plate side Type code 01 02 03 04 05 06 07 08 09 10 11 Z 2 FS 16 8 – 3X / * 01 Sandwich plate valve Z Number of functions 02 2 (throttling in channel A and/or B) 2 03 Throttle check valve FS 04 Size 16 16 Functions in 05 Channel A A Channel B B Channel A and B – Adjustment type 06 Spindle with internal hexagon 8 07 Component series 30 ... 39 (30 ... 39: unchanged installation and connection dimensions) 3X Supply throttling / discharge throttling 08 Supply throttling on side A ("…A8–3X/S") S Supply throttling on side B ("…B8–3X/S") Supply throttling on side A and B ("…–8–3X/S") Discharge throttling on side A ("…A8–3X/S2") S2 Discharge throttling on side B ("…B8–3X/S2") Discharge throttling on side A and B ("…–8–3X/S2") Corrosion resistance (outside) 09 None (valve housing primed) (standard) no code Improved corrosion protection (240 h salt spray test according to EN ISO 9227) J3 Seal material 10 NBR seals no code FKM seals V Observe compatibility of seals with hydraulic fluid used. (Other seals upon request) 11 Further details in the plain text * Preferred types and standard units are contained in the EPS (standard price list). Technical data general Size 16 Weight (approx.) kg 4.7 Installation position any Ambient temperature range NBR seals °C -30 … +80 FKM seals °C -20 … +80 hydraulic Size 16 Maximum operating pressure bar 350 Maximum flow l/min 250 Hydraulic fluid see table Hydraulic fluid temperature range NBR seals °C -30 … +80 FKM seals °C -20 … +80 Viscosity range mm²/s 2.8 … 380 Maximum admissible degree of contaminatio