DIRECTIONAL VALVES
CV16-20 Check Valve
DESCRIPTION
A screw-in, cartridge-style, hydraulic check valve for use as a blocking or load-holding
device.
OPERATION
The CV16-20 allows fl ow from ➀ to ➁, while blocking oil fl ow in the opposite direction.
The cartridge has a fully guided poppet which is spring-biased to closed until suffi -
cient pressure is applied at
➀ to open to ➁.
FEATURES
• Hardened seat for long life and low leakage.
• Optional bias springs for back-pressure application fl exibility.
• Industry common cavity.
RATINGS
Operating Pressure: 240 bar (3500 psi)
Proof Pressure: 350 bar (5075 psi)
Flow: See Performance Chart
Internal Leakage: 0.25 cc/minute (5 drops/minute) max. at 240 bar (3500 psi)
Crack Pressure Defi ned: Gauge pressure evident at
➀ at 0.95 lpm (0.25 gpm)
attained
Standard Bias Springs at Crack: 0.35 bar (5 psi); 1.7 bar (25 psi); 4.1 bar (60 psi)
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: VC16-2; See page 9.116.1
Cavity Tool: CT16-2XX; See page 8.600.1
Seal Kit: SK16-2X-T; See page 8.650.1
USASI: ISO:
PERFORMANCE (Cartridge Only)
SYMBOLS
4.014.1
5.5/80
4.1/60
2.8/40
1.4/20
37.9
10
75.8
20
113.6
30
FLOW lpm/gpm
PRESSURE DROP bar/psi
151.4
40
to : 0.34 bar/5 psi spring — ;
1.72 bar/25 psi spring - - -
32 cSt/150 ssu oil at 40°C
➀➁
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Cartridge: Weight: 0.29 kg. (0.63 lbs.)
Steel with hardened work surfaces.
Zinc-plated exposed surfaces.
Buna N O-rings and polyester
elastomer back-ups standard.
Standard Ported Body: Weight:
0.57 kg. (1.25 lbs.) Anodized high-
strength 6061 T6 aluminum alloy,
rated to 207 bar (3000 psi). Ductile
iron bodies available; dimensions
may differ. See page 8.016.1
Porting
Cartridge Only 0
SAE 12 12T
SAE 16 16T
3/4 in. BSP* 6B
1 in. BSP* 8B
*BSP Body;
U.K. Mfr. Only
Seals
N Buna N (Std.)
V Fluorocarbon
Bias Spring (Crack)
5 0.35 bar (5 psi)
25 1.7 bar (25 psi)
60 4.1 bar (60 psi)
100 6.9 bar (100 psi)*
150 10.3 bar (150 psi)*
CV16-20
DIMENSIONS
MATERIALS
TO ORDER
CV16-20
- __ -__ __ __ - __ - __ __
4.014.2
“T” Option* T
*Required for
100 or 150 psi spring.
*Requires “T” Option
®
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