PRESSURE CONTROLS
RV10-20 Relief, Direct-Acting Poppet
DESCRIPTION
A screw-in, cartridge-style, direct-acting, poppet-type, hydraulic relief valve intended
for use as a pressure limiting device for common hydraulic circuit protection.
OPERATION
The RV10-20 blocks fl ow from ➀ to ➁ until suffi cient pressure is present at ➀ to
force the poppet from its seat.
The cartridge offers fast response to load changes in typical hydraulic circuits
requiring low internal leakage.
NOTE: The RV10-20 may be used in cross-over relief applications (back pressure
on
➁) with the use of the “C” double back-up ring seal option. See Ordering Table.
FEATURES
• Adjustments cannot be backed out of the valve.
• Adjustment options A, B, and C: positive stops prevent springs from going solid.
• Hardened poppet and cage for long life.
• Optional spring ranges to 228 bar (3300 psi).
• Rapid response to pressure surges.
• Industry common cavity.
RATINGS
Operating Pressure: 228 bar (3300 psi)
Flow: The Performance Chart illustrates fl ow handling capacity at maximum setting
for each spring range option. Pressure rise will vary with spring (range) and
with setting within range due to fl ow forces. Consult factory for specifi c fl ow
characteristic values.
Internal Leakage: 0.25 cc/minute (5 drops/minute) max. to 80% of nominal setting
Crack (Set) Pressure Defi ned: bar (psi) evident at 0.95 lpm (0.25 gpm) attained
Reseat Pressure: Nominal 85% of crack pressure
Standard Spring Ranges: Due to manufacturing tolerances, it may be possible to
adjust the valve either lower or higher than the nominal ratings shown below.
Temperature: -40 to 120°C
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: VC10-2; See page 9.110.1
Cavity Tool: CT10-2XX; See page 8.600.1
Seal Kit: SK10-2X-B; See page 8.650.1; SK10-2X-M (for cross-over relief application)
USASI/ISO:
SYMBOLS
PERFORMANCE (Cartridge Only)
6.020.1
207/3000
172/2500
138/2000
103/1500
69/1000
18.9
5
37.9
10
FLOW RATE lpm/gpm
PRESSURE RISE bar/psi
Flow Characteristic
32 cSt/150 ssu oil at 40°C
35/500
241/3500
Spring Nominal Maximum Solid
Model Code Factory Rating Adjustment
6 3.45 – 41.38 bar (50 – 600 psi) 55.17 bar (800 psi)
12 10.34 – 82.76 bar (150 – 1200 psi) 110.34 bar (1600 psi)
23 17.24 – 158.62 bar (250 – 2300 psi) 200 bar (2900 psi)
33 17.24 – 227.59 bar (250 – 3300 psi) 255.17 bar (3700 psi)
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DIMENSIONS
MATERIALS
Cartridge: Weight: 0.23 kg. (0.50 lbs.)
Steel with hardened work surfaces.
Zinc-plated exposed surfaces.
Buna N O-rings and polyester
elastomer back-up standard;
Anodized aluminum knobs.
Standard Ported Body: Weight:
0.16 kg. (0.35 lbs.) Anodized high-
strength 6061 T6 aluminum alloy,
rated to 207 bar (3000 psi). Ductile
iron bodies available; dimensions
may differ. See page 8.010.1
TO ORDER
Setting in bar
†
(Blank) for Adjustable, or
Specify, for example:
M25 25 bar
M100 100 bar
Setting in psi
†
(Blank) for Adjustable, or
Specify, for example:
9.0 900 psi
23.5 2350 psi
Porting
Cartridge Only 0
SAE 6 6T
SAE 8 8T
1/4 in. BSP* 2B
3/8 in. BSP* 3B
1/2 in. BSP* 4B
*BSP Body; U.K. Mfr. Only
†
Adjustable valves will be preset
to approx. 50% of spring max.
RV10-20__ - __ __ __ - __ - __ __ / __ __ __ __
Adjustment Option
1/4 in. Hex Allen Head A
1-1/2 in. Dia. Alum. Knob B
Option A w/ Cover Cap C
Factory Preset Non-Adj. F
Factory Preset
Hidden Adj. H
Option C w/
Lockwire Holes L
Seals
Pressure on
P Only:
N Buna N (Std.)
V Fluorocarbon
Bidirectional
Pressure:
NC Buna N
VC Fluorocarbon
RV10-20
6.020.2
Spring Range
6 3.45 to 41.38 bar
(50 to 600 psi)
12 10.34 to 82.76 bar
(150 to 1200 psi)
23 17.24 to 158.62 bar
(250 to 2300 psi)
33 17.24 to 227.59 bar
(250 to 3300 psi)
®
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®
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