Directional Valves — HyPerformance™

HPC42-J48— Piloted Directional Element, Balanced Poppet, Normally Closed
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HPC42-J48 Valve

HPC42-J48 Valve symbol

A high pressure, two-way, bi-directional, pilot-to-open, balanced poppet-type, screw-in,
cartridge-style, hydraulic directional element designed to function as a load-holding or
blocking valve in applications requiring low internal leakage.

In the unpiloted state, the HPC42-J48 blocks flow from 1 to 2 bi-directionally. On remote
pilot signal at port 3, the valve shifts to allow flow from ports 1 to 2 bi-directionally. The
spring chamber is vented to port 4. Pressure at port 4 will directly affect the pilot pressure
required to shift the valve must be added. The hydraulically balanced poppet will allow
ports 1 and 2 to be fully pressurized without affecting required pilot pressure to actuate the
valve. With port 4 vented, the valve will fully shift with a minimum pilot pressure of 14 bar (200 psi).

• Bi-directional flow.
• Balanced poppet.
• Low internal leakage.
• All HyPerformance products are tested to the rigorous standards of the NFPA
   specification T2.6.1.
• All HyPerformance valves are tested at a verification level of 90% and an
   assurance of 99%.

Operating Pressure: 350 bar (5075 psi); 10% cycle life: 420 bar (6090 psi)
   Note: All HyPerformance products are tested for 900K cycles at 350 bar and 100K
   at 420 bar.
Proof Pressure: 690 bar (10000 psi)
Burst Pressure: 1380 bar (20000 psi)
Flow: 380 lpm (100 gpm)
Internal Leakage: 15 drops/min at 350 bar (5075 psi)
Temperature: -40 to 100° C (-40 to 212° F) with standard Buna seals;
   -26 to 204° C (-15 to 400° F) with fluorocarbon seals;
   -54 to 107° C (-65 to 225° F) with 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: HVC42-J4; See page 9.142.1_4w
Cavity Tool: HCT42-J4XX; See page page 8.600.1
Seal Kit: SK42-J4N-BBM (Buna N); SK42-J4V-BBM (fluorocarbon);
   SK42-J4U-000 (urethane); See page 8.650.1


HPC42-J48 Valve Performance Chart

HPC42-J48 Valve Dimensions


Cartridge: Weight: 1.5 kg (3.3 lb) Steel with hardened work surfaces. Zinc-nickel plated exposed surfaces. PPDI urethane seals without back-up rings standard. Buna N and fluorocarbon seals also available.

Standard Ported Body: Weight: 10.6 kg
(23.3xx lb) H-series ductile iron standard.
Rated to 345 bar (5000 psi).
See page 8.042.1_4w.

HPC42-J48 Ordering Chart