Valves - Directional Controls - Piloted Directional Valve - 2-position 2-way - Atmospheric Vent

PD12-30

PILOTED DIRECTIONAL VALVE

Overview

Description

The PD12-30 is a screw-in, cartridge style, pilot-operated, spool type, normally open, hydraulic directional valve

Operation

In neutral position the valve allows flow from port 3 to 2 bi-directionally. The spring chamber is vented to atmosphere "v" which is internally o-ring sealed from the cartridge flow paths. On remote pilot signal at port 1, the valve's spool shifts to block flow from port 3 to 2 while port 2 is blocked. Because of the vented spring chamber, the cartridge may be fully pressurized at any port without affecting required pilot pressure

Features

  • Hardened spool and cage for long life.
  • Cost-effective cavity.

Ratings

Pressure Ratings
Pressure rating
241 bar (3500 psi)
Temperature Ratings
Maximum operating fluid temperature
-40 to 120 °C (-40 to 248 °F)
Flow Ratings
Maximum internal leakage
245 ml/min (15 in³/min) From port 1 to 2 and from port 2 to 3 (when piloted), at 207 bar (3000 psi)
0 lpm (0 gpm) From port 1 and 2 with sealed spool

Properties

Materials
steel with work surfaces hardened. External surfaces are zinc plated
Cartridge weight
0.23 kg (0.50 lb)

Performance

PD12-30_Perf_Chrt

Dimensions

PD12-30_Dim_Dwg

Materials

Materials

Cartridge: Weight: 0.23 kg (0.50 lb); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O-rings and polyester elastomer back-ups standard.

Standard Ported Body : Weight: 1.13 kg (2.50 lb); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi). Ductile iron bodies available; dimensions may differ.

Installation Specifications

Cavity
VC12-3
Cartridge installation torque
44.7 to 50.2 N-m (33 to 37 ft-lb)

Accessories

Seal kit
SK12-3N-MM Buna N
SK12-3V-MM Viton
SK12-3P-MM Polyurethane

Order code

POSITION
CODE
DESCRIPTION
PD12-30-H-J-R
H
Line Body
H
0
No Body
H
8T
Aluminum SAE 8
H
10T
Aluminum SAE 10
H
12T
Aluminum SAE 12
H
12TD
Ductile Iron SAE 12
J
Seal
J
N
Buna-N
J
NS
Buna-N with a Sealed Spool
J
V
Fluorocarbon
J
VS
Fluorocarbon with a Sealed Spool
J
P
Polyurethane
J
PS
Polyurethane with a Sealed Spool
J
U
PPDI Urethane
J
US
PPDI Urethane with a Sealed Spool
R
Spring
R
110
110 psi Bias Spring
R
170
170 psi Bias Spring
PD12-30_Order