Page 28 - Parker - Check Valves

Catalog HY15-3502/US Pilot Operated Check Valve
Technical Information Series D4A020

CV
General Description
Miniature Pilot to Open, Poppet Type Check Valve.
For additional information see Technical Tips on
Valves
Check
pages CV1-CV4.
SH
Features
• Hardened poppet for maximum durability
• Low leakage - less than 3 drops/min. (3)
Shuttle
Valves
LM • Sealed pilot
• Extremely compact construction - can be fitted directly
into most cylinders
• Cavity commonality with load control valves (2)
• Dual line blocks available
Controls
Load/Motor
FC
• All external parts zinc plated
(1)
Performance Curve (2) (1)
Pressure Drop vs. Flow (Through cartridge only) (3)
Flow
Controls
PSI Bar Hydraulic Oil 150 SSU @ 100°F (32 cSt)
PC
290 20
P)
218 15
Pressure Drop ( Piloted Open 34.20 12.00
Controls
Pressure
2 to 1
LE 145 10 Free Flow Dimensions Millimeters (Inches)
1 to 2
5
73
Logic
(2) (1.35) (3) (0.47)
Elements
DC
0
LPM 5 10 15 20 25 30
0
GPM 1.3 2.6 4.0 5.3 6.6 7.9 (1)
Flow (Q)
Specifications
Directional
Controls
MV
Rated Flow 30 LPM (8 GPM)
M18 x 1.5 22 AF Hex.
40 Nm
Nominal Flow @ 16 LPM (4.2 GPM) (30 lb. ft.)
7 Bar (100 PSI) (Piloted Open) Torque
Manual
Valves
Maximum Inlet 420 Bar (6000 PSI)
SV
Pressure
Ordering Information
Leakage at Less than 3 drops/min.
150 SSU (32 cSt)
D4A020
Solenoid
Valves
Cracking Pressure 5 Bar (72 PSI)
PV Check Seals
Pilot Ratio 4:1 Valve Order Bodies Separately
Cartridge Material Steel operating parts, Code Seals / Kit No.
hardened steel poppet. LB10
N Nitrile, Buna-N /
Valves
Proportional
CE Operating Temp. -40°C to +93.3°C (Nitrile, Buna-N) (SK30090N-1) Line Body Porting Body
Range/Seals (-40°F to +200°F) V Fluorocarbon / Material
-31.7°C to +121.1°C (Fluorocarbon) (SK30090V-1)
(-25°F to +250°F) Code Porting
310 3/8″ BSP (Main)
Electronics
Coils &
Fluid Mineral-based or synthetic with 1/4″ BSP (Aux.)
BC Compatibility/ lubricating properties at viscosities
Viscosity of 45 to 2000 SSU (6 to 420 cSt) 318 3/8″ SAE (Main)
1/4″ SAE (Aux.)
Filtration ISO code 16/13, 312 3/8″ BSP Dual Cavity
SAE Class 4 or better 319 3/8″ SAE Dual Cavity
Cavities
Bodies &
TD Approx. Weight .066 kg (.145 lbs.)
Code Body Material
Cavity 53-1 A Aluminum
(See BC Section for more details) S Steel
Data
Technical
CV27 Parker Hannifin Corporation
Hydraulic Cartridge Systems