Y03002/ Prefill Exhaust Valve. Description

Transcription

1 Prefill Exhust Vlve 350 r /6 Description The Prefill Exhust Vlve (PV) is hydrulic-pilot operted check vlve with set type construction. It llows free flow from port A to port B. Flow from port B to port A cn e enled y pplying pilot pressure to it's port X. The decompression feture enles the vlve to open in two stges progressively, llowing smooth nd rpid exhust of the compressed oil. Opening nd closing time of the vlve cn e influenced y providing Throttle-Check Vlves in the X port line. Flnged port A of the vlve housing cn e rotted round verticl xis through 360 to fcilitte ccess to flnge fixing olts nd flnge orienttion Fetures X 5 A A X B B Hydrulic Symol. Integrted Set provides high rigidity, high ftigue resistnce nd less deflection of the flnge. 2. Encpsulted O-ring llows esy of ssemly nd prevents o-ring dmge during ssemly. 3. Simplified Cvity mchining 4. Lrger suction flnge to reduce pressure drop in the suction line nd consequently increse flow hndling cpility 5. Improved Pilot cylinder seling to minimize pilot lekge nd reduce frictionl loss during opertion.

2 Prefill Exhust Vlve 350 r 2/6 Instlltion Dimensions: Mounting Style B Reservoir (In-tnk) Mount ØD ØD9 ØD0 ØD8 N X ØD6 H7 H8 H5 H2 H ØD7 H3 H6 H4 ØD5 ØD4 ØD3 ØD2 ØD Dimensions in mm Size ØD ØD2 ØD3 ØD4 ØD5 ØD6 ØD7 ØD8 ØD9 ØD Size ØD H H2 H3 H4 H5 H6 H7 H8 N 00 G 3/ G 3/ G G./

3 Prefill Exhust Vlve 3/6 Size 00 to r Instlltion Dimensions: Mounting Style A Flnged A Port ØD2 ØD9 ØD0 ØD B B2 B3 ØD6 N X ØD6 H6 H3 H9 H0 H2 H H4 ØD3 ØD4 ØD5 N2 x ØD7 ØD5 ØD4 ØD3 ØD2 ØD Dimensions in mm Size B B2 B3 ØD ØD2 ØD3 ØD4 ØD5 ØD Size ØD9 ØD0 ØD ØD2 ØD3 ØD4 ØD5 ØD6 ØD G 3/ G 3/ G G./ Size H H2 H3 H4 H6 H9 H0 N N

4 Prefill Exhust Vlve 350 r 4/6 Ordering Code PV 00 A -2 Prefill nd Exhust Vlve Design Series (Suject to Chnge) 2 to 29 externlly interchngele Size A Port Flnge 00 DN 25, PN 6 25 DN 50, PN 6 50 DN 200, PN DN 250, PN 6 Decompression Feture 0 Without Decompression With Decompression Mounting Style A Flnged A Port B Reservoir (In-tnk) mount Technicl dt Generl Mounting Position Optionl Hydrulic Mximum Operting Pressure Port A r 6 Port B nd X r 350 Crcking Pressure r 0.2 Pilot Pressure to enle flow from Port B to Port A Vlve without Decompression r P x > (P P ) x Vlve with Decomression r P x > (P P ) / Where, Px is Pilot Pressure P is Pressure t Port A P is Pressure t Port B Pilot Volume Size cm³ Recommended Tue OD mm Hydrulic Fluid Minerl Oil Fluid Temperture C -20 to 80 C Minimum degree of clenliness Clss 20/8/5 ccording to ISO 4406 Instlltion Tightening torques Size Mounting Screw Size M30x2x20L M36x3x50L M36x3x60L M42x3x80L Tightening Torque Nm Dry Weight Size Flnged Mounting A kg Reservoir Mounting B kg

5 Prefill Exhust Vlve 350 r 5/6 Mounting Cvity 3.2 ØD2 0.0/00 ØD3 0.0 T N X ØD9 0.4 T T2 T4 ØD8 Size ØD2 ØD3 (H7) ØD8 ØD9 N T T2 T3 T M M M M Instlltion Notes: Avoiding Suction Vortex Instll Bffle pltes (3) t pproprite positions to void depressed suction vortex creted during prefilling. Bffle pltes re highly recommended for smll reservoirs or low oil levels for oth in-tnk nd flnge mounting ssemlies.. Oil Reservoir 2. Oil level 3. Bffle Plte 4. Prefill Vlve 5. Pilot Connection 6. Cylinder Instlltion Notes: Rotting Suction housing 2 3 Suction housing nd hence the flnged port A of the vlve cn e rotted round verticl xis through 360. To rotte the suction housing. Loosen the clmp screws () nd clmp (2) of the vlve. 2. Rotte Suction housing (3) to desired position 3. Retighten the clmping screws. Clmp Screws 2. Clmp 3. Suction Housing Note: Suction housing needs to e rotted round verticl xis to fcilitte ccess to flnge fixing olts nd for proper flnge orienttion.

6 Prefill Exhust Vlve Size 00 to r Mximum flow for Different Appliction 6/6 c Appliction A Appliction B Appliction C Appliction D h > 300 when cylinder is extended < 000 c < <h < 500 Appliction E Mximum Flow (l/min) Size Velocity Appliction A Appliction B Appliction C Appliction D Appliction E