SYMBOL:
 |
DESCRIPTION
A screw-in, cartridge-style, pilot-operated, spool-type, hydraulic directional valve for two-way circuits requiring remote pilot actuation.
OPERATION
In neutral (unpiloted), the PD16-44 blocks flow between 3 and 2. The spring chamber is directed to port 4, which is internally O-ring sealed from the cartridge flow paths. On remote pilot signal at 1, the valve shifts to open flow between 2 and 3. Any pressure on port 4 is added to the spring value.
FEATURES
• Hardened spool and cage for long life.
• Optional sealed pilot
• Industry-common cavity.
RATINGS
Operating Pressure: 240 bar (3500 psi)
Flow: up to 189 lpm (50 gpm)
Maximum Internal Leakage at 207 bar (3000 psi): 164 cc/minute (10 cu. in./minute)
Pilot Pressure Required:
To Spool Crossover: 7.6 bar (110 psi) with 110 psi bias spring
To Full Spool Shift: 9.0 bar (130 psi) with 130 psi bias spring
Oil Volume Required to Full Shift: 2.5 cc (0.15 cu. in.)
Temperature: -40° to 100°C (-40° to 212°F) with Buna seals;
-26° to 204°C (-15° to 400°F) with Fluorocarbon seals.
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of
7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: No restrictions; See page 9.020.1
Cavity: VC16-4; See page 9.116.1_4w
Cavity Tool: CT16-4xx; See page 8.600.1
Seal Kit: SK16-4x-MMM; See page 8.650.1 |
