DIRECTIONAL VALVES
HPC08-30 HyPerformance
TM
Check, Pilot-to-Open
DESCRIPTION
A screw-in, cartridge-style, pilot-operated, hydraulic check valve for use as a blocking
or load-holding device for high pressure applications.
OPERATION
The HPC08-30 allows flow from 2 to 3, while normally blocking flow from 3 to 2. Flow
will be allowed from 3 to 2 when pressure at 1 exceeds one-third the pressure at 3.
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.
• 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%.
RATINGS
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.
Fatigue Rating: 2 million cycles at 420 bar
Proof Pressure: 690 bar (10000 psi)
Burst Pressure: 1380 bar (20000 psi)
Flow: 30.3 lpm (8 gpm)
Maximum Internal Leakage at 350 bar (5075 psi): 0.10 ml/minute (2 drops/minute)
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: HVC08-3; See page 9.108.1
Cavity Tool: HCT08-3XX; See page 8.600.1
Seal Kit: SK08-3X-TM for Buna N seals; SK08-3V-TM for viton seals; SK08-3U-00 for
urethane seals; see page 8.650.1
PERFORMANCE (Cartridge Only)
ISO SYMBOL
4.100.3
10.3/150
8.3/120
6.2/90
4.1/60
2.1/30
7.5
2
15.1
4
22.7
6
FLOW lpm/gpm
PRESSURE DROP bar/psi
Pressure Drop vs. Flow (30 bias spring)
2 to 3 — (free flow); 3 to 2 - - - (piloted)
32 cSt/150 sus oil at 40°C
30.3
8
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TO ORDER
HPC08-30
DIMENSIONS
MATERIALS
4.100.4
1.75
44.5
1.28
32.5
2.56
65.0
2.75
69.9
0.28
7.1
0.28
7.1
0.28
7.1
2.00
50.8
2.12
53.8
0.61
15.5
1.17
29.8
Thru
2 Places
DUCTILE IRON
BODY SHOWN
0.94 (23.8)
ACROSS FLATS
40-45 ft. lb. (54.6 Nm)
TORQUE
1.70
43.3
0.37
9.4
Porting
Cartridge Only 0
SAE 6 6TD
SAE 8 8TD
3/8 in. BSP* 3BD
*BSP Body;
U.K. Mfr. Only
Seals
N Buna N (Std.)
NS Buna N with Sealed Piston
V Fluorocarbon
VS Fluorocarbon with Sealed Piston
U Urethane
US Urethane with Sealed Piston
HPC08-30 __ - __ __ __ - __ - __ __ __
Options
None (Blank)
Bias Spring
04 0.3 bar/4 psi
10 0.7 bar/10 psi
20 1.4 bar/20 psi
30 2.1 bar/30 psi
50 3.4 bar/50 psi
80 5.5 bar/80 psi
100 6.9 bar/100 psi
140 9.7 bar/140 psi
200 13.8 bar/200 psi
Cartridge: Weight: 0.07 kg. (0.16 lbs.)
Steel with hardened work surfaces.
Zinc-plated exposed surfaces.
Urethane seals without back-ups
standard.
Ported Body: Weight:
0.27 kg. (0.60 lbs.) HyPerformance™
Ductile iron (code ‘D’) standard.
Rated to 345 bar (5000 psi).
See page 8.008.1
®
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Note: NS, VS, US and PS seal options require 9.7
bar (140 psi) spring minimum.
Note: Urethane seals recommended for operating
pressures above 3500 psi (241 bar).
Blue rectangles are links to other catalog pages.
