PC51
prh101.pm6.5, bl, 1/03
Parker Hannifin plc
Integrated Systems Division
Warwick, UK
Catalogue HY16-9000/UK
P.O. Pressure Reducing/Relieving Valve
Series PRH101
Specifications
Technical Information
Maximum Flow 56.3 LPM (15 GPM)
Maximum Inlet 380 Bar (5500 PSI)
Pressure
Maximum 350 Bar (5000 PSI)
Pressure Setting
Maximum 0.94 LPM (0.25 GPM)
Drain Flow
Cartridge Material All parts steel. All operating
parts hardened steel.
Operating Temp. -45°C to +93.3°C (“D”-Ring)
Range (Ambient) (-50°F to +200°F)
-31.7°C to +121.1°C (Fluorocarbon)
(-25°F to +250°F)
Filtration ISO Code 16/13,
SAE Class 4 or better
Fluids Mineral-based or synthetic with
lubricating properties at viscosities
of 45 to 2000 SSU (6 to 420 cSt)
Approx. Weight .23 kg (0.5 lbs.)
Cavity C10-3
Form Tool Rougher NFT10-3R
Finisher NFT10-3F
Performance Curves
General Description
Pilot Operated Pressure Reducing/
Relieving Valve.
For additional
information see Technical Tips on
pages PC1-PC6.
Features
•
Hardened, precision ground parts for durability
•
Low profile adapter for minimal space requirements
•
Fully guided poppet for more consistent reseat
•
Steel adapters are coated with yellow zinc dichromate for
protection from salt spray
•
Polyurethane “D”-Ring eliminates backup rings and
prevents hydrolosis
•
Internal screening protects pilot spring from debris
(2)
(3)
(1)
Flow (Q)
19
5
57
15
38
10
19
5
0
0
LPM
GPM
38
10
57
15
Hydraulic Oil 150 SSU @ 100°F (32 cSt)
0
1000
2000
345
414
207
276
69
138
Pressure, PSI
5000
6000
PSI Bar
3000
4000
Relieving Reducing
Flow vs. Regulated Pressure (Through cartridge only)
Flow (Q)
34.1
9
11.4
3
22.7
6
LPM
GPM
0
45.4
12
56.8
15
Hydraulic Oil 150 SSU @ 100°F (32 cSt)
0
100
20.7
27.6
13.8
6.9
300
400
PSI Bar
200
Pressure, PSI
Port 2 to 1
Pressure vs. Flow (Through cartridge only)
W
I
N
N
E
R
S
C
I
R
C
L
E
(1)
(2) (3)
Return
PC52
P.O. Pressure Reducing/Relieving Valve
Series PRH101
prh101.pm6.5, bl, 1/03
Parker Hannifin plc
Integrated Systems Division
Warwick, UK
Catalogue HY16-9000/UK
THIRD-ANGLE
PROJECTION
Ordering Information
Technical Information
Dimensions Millimeters (Inches)
SealsPressure
Range
Adjustment
Style
Body
Material
Port
Size
Optional
Pressure
Setting
Code Seals / Kit No.
Omit “D”-Ring / (SK10-3)
N Nitirle / (SK10-3N)
V Fluorocarbon / (SK10-3V)
Code Pressure Range
10 6.9 - 69 Bar (100 - 1000 PSI)
Standard Setting:
34.5 Bar (500 PSI) @ crack pressure,
approximately .95 LPM (.25 GPM)
20 6.9 - 138 Bar (100 - 2000 PSI)
Standard Setting:
69 Bar (1000 PSI) @ crack pressure,
approximately .95 LPM (.25 GPM)
30 13.8 - 207 Bar (200 - 3000 PSI)
Standard Setting:
103.5 Bar (1500 PSI) @ crack pressure,
approximately .95 LPM (.25 GPM)
50 13.8 - 345 Bar (200 - 5000 PSI)
Standard Setting:
172.4 Bar (2500 PSI) @ crack pressure,
approximately .95 LPM (.25 GPM)
Code Body Material
Omit Steel
A Aluminum
Code Adjustment Style / Kit No.
F Fixed style, preset at factory.
K Knob Adjust (717784-10)
S Screw Adjust
T Tamper Resistant Cap (717943)
Optional Pressure Setting
Pressure 10
i.e. 235 = 2350 PSI
(Omit if standard setting is used)
Setting Range:
100 to 5000 PSI
All settings at crack pressure,
approximately .95 LPM (.25 GPM)
PRH101
10 Size
P.O. Pressure
Reducing/Relieving
Valve
* Add “A” for aluminum, omit for steel.
† Steel body only.
Code Port Size Body Part No.
Omit Cartridge Only
4P 1/4. NPTF (B10-3-*4P)
6P 3/8. NPTF (B10-3-*6P)
8P 1/2. NPTF (B10-3-*8P)
6T SAE-6 (B10-3-*6T)
8T SAE-8 (B10-3-*8T)
4B 1/4. BSPG (B10-3-4B)†
6B 3/8. BSPG (B10-3-6B)†
8B 1/2. BSPG (B10-3-*8P)
(1)
25.4 (1.00)
Dia. Knob
(2)
(3)
34.2
(1.35)
34.2
(1.35)
Screw/Knob Version
7/8-14 UNF-2A
Thread
44.1
(1.74)
41.9
(1.65)
45.9
(1.81)
1" Hex.
Ø 15.8
(.62)
Fixed Cap/Tamper Resistant Version
(1)
(2)
(3)
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