Directional Valves

PC08-30 — Check, Pilot-to-Open
  Selection guide - similar valves.
  PDF file of this page
  STP file for PC08-30.
  Request a quote

PC08-30 Valve

SYMBOL:
PC08-30 Valve symbol

DESCRIPTION
A screw-in, cartridge-style, pilot-operated, hydraulic check valve for use
in blocking or load-holding circuits.

OPERATION
The PC08-30 allows flow from 2 to 3, while normally blocking flow from 3 to 2.
Flow will be allowed from 3 to 2 when sufficient pressure is applied at 1.
The cartridge has a 3:1 pilot ratio, meaning that at least one-third of the load
pressure held at 3 is required at 1 to open the valve.
The check is spring-biased to assure holding in static or no-load conditions.
A sealed pilot piston option is available.

FEATURES
• Hardened seat for long life and low leakage.
• Optional sealed piston.
• Optional spring ranges.
• Compact size.

RATINGS
Operating Pressure: 240 bar (3500 psi)
Flow: up to 26 lpm (7 gpm)
Maximum Internal Leakage at 207 bar (3000 psi):
  
3 to 2: 0.10 ml/minute (2 drops/minute)
   2 to 1 without sealed piston: 115 ml/minute (7 cu. in./minute)
   2 to 1 with sealed piston: zero leakage
Pilot Ratio: 3:1
Check Spring Bias: 1.72 bar (25 psi) standard; with sealed piston option:
   6.2 bar (90 psi) minimum
Temperature: -40 to 100°C (-40 to 212°F) with Buna seals;
   -26 to 204°C (-15 to 400°F) with fluorocarbon seals;
   -54 to 107°C (-65 to 225°F) with polyurethane and urethane 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: VC08-3; See page 9.108.1_3w
Cavity Tool: CT08-3xx; See page 8.600.1
Seal Kit: SK08-3x-TM; See page 8.650.1

PERFORMANCE:

PC08-30 Valve Performance Chart
  DIMENSIONS:
PC08-30 Valve Dimensions

MATERIALS:

Cartridge: Weight: 0.08 kg (0.18 lb);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces;
Buna N O-rings and back-ups standard.

Standard Ported Body
: Weight:
0.27 kg (0.60 lb); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi). Ductile iron bodies available; dimensions may differ.
See page 8.008.1_3w
  ORDERING CHART:

PC08-30 Ordering Chart

Selection guide - similar valves.
PDF file of this page. STP file for PC08-30. Request a quote.