SIS DI3201-A-V001 Switching value I/O module

Typical DGX-*-06 drain leakage values at no thru flow condition are shown below for various differential pressures (subtract outlet pressure from inlet pressure).These flow regulator modules have restriction checks in both cylinder ports. Flow to the directional valve passes through the module; flow out of the cylinder port of the directional valve passes free flow over restriction checks; return flow must pass over one of the restriction checks. As a result, the actuator device is controlled in a meter-out mode in each direction.Pilot valve drain line “Y” must be piped directly to tank through a surge free line so that there will be no back pressure at this drain. Transient pressure must not exceed 0,35 bar

Pressure Drop 

Through the module at 132 l/min (35 USgpm) and 21 cSt (100 SUS) is 11,4 bar (165 psi) with adjusting screws completely in (total drop P to A plus B to T). Ratings Max. inlet pressure: 210 bar (3000 psi) Max. flow (rec.): 227 l/min (60 USgpm)Adjusting screws both ends. (.3125-24 UNF thd. Use 4,0 (.16) hex. key). Adjust by backing off locknuts and turning adjusting screws OUT to decrease rate of flow and IN to increase rate of flow.Blank for standard 2 bar (30 psi) cracking pressure. Other cracking pressures are available upon request

General Data 

These modules are available with a check valve in either one or both cylinder ports. They are arranged for free flow out of the DG*S-8 directional valve. For return flow, one check can be unseated by a common striker piston mounted co-axially between the two checks; this happens when internal pressure on one side is sufficient to cause the striker piston to open the check valve on the opposite side. In a neutral condition (with cylinder ports open to tank at the directional valve) compression springs will seat the checks and the machine actuator will be held stationary. A small decompression poppet which opens before the main check valve is available. Add the letter “D” as shown in the model code.

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