Directional Valves

PD16-40 — Piloted, 3-Way, Spool Valve, External Vent
  Selection guide - similar valves.
  PDF file of this page
  STP file for PD16-40
  Request a quote

PD16-40 Valve

PD16-40 Valve symbol

A screw-in, cartridge-style, pilot-operated, spool-type, hydraulic
directional valve for three-way circuits requiring remote pilot actuation.

In neutral (unpiloted), the PD16-40 allows flow from 3 to 2 bidirectionally
while flow is blocked at 4. V is a spring chamber vent-to-atmosphere, which
is internally O-ring sealed from the cartridge flow paths. On remote pilot signal
at 1, the valve shifts to allow flow between 3 and 4 while blocking at 2.
Because of the vented spring chamber, the cartridge may be fully pressurized at
any port without affecting required pilot pressure.

• Hardened spool and cage for long life.
• Optional sealed pilot
• Industry-common cavity.

Operating Pressure: 240 bar (3500 psi)
Proof Pressure: 350 bar (5075 psi)
Flow: up to 170 lpm (45 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)
   To Full Spool Shift: 9.0 bar (130 psi)
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
Cap Vent Seal: 6003125

Note: This valve is designed with a dynamic oil-to-atmosphere seal in the vent
section. Ambient conditions will cause this vent seal to degrade which will reduce
the valves cycle life. If this could cause a problem, we suggest that a non-vented
model be selected, or special seal be used. Consult factory for assistance.


PD12-40 Valve Performance Chart
PD12-40 Valve Dimensions


Cartridge: Weight: 0.52 kg (1.15 lb);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces; Buna N
O-rings and polyester elastomer
back-ups standard.

Standard Ported Body:
Weight: 1.50 kg (3.30 lb); Anodized high-strength 6061 T6 aluminum alloy,
rated to 207 bar (3000 psi). Ductile iron bodies available; dimensions may differ. See page 8.016.1_4w

PD16-40 Ordering Chart

Selection guide - similar valves.
PDF file of this page. STP file for PD16-40. Request a quote.