Page 10 - Parker - Load and Motor Control Valves

Catalog HY15-3502/US Counterbalance Valve
Technical Information Series MHC-022

CV
General Description
Threaded Cartridge Style Counterbalance Valve.
For additional information see Technical Tips
Check
Valves
SH on pages LM1-LM5.

Features
Shuttle
Valves
LM • Conical Poppet design provides longer metering stroke Valve
for stable operation Port
• Hardened seat provides reliable load holding
• External vent option available for high back pressure Work Port Cylinder
Port
Controls
Load/Motor
applications
FC Single Pilot
• Tamper resistant cap for added safety and security Non- Port
Vented
• Various pilot ratios available for application flexibility Valve Port Pilot
• Unique cavity prevents other valves from being C C MHC-022-S*N*
Flow
Controls
“accidentally” installed
PC Non-Vented
• All external parts zinc plated Dual Counterbalance
Non-
Non-Adjustable
Vented
V V
Controls
Pressure
LE Specifications Construction
MHC-022-S*S* Non-Vented Counterbalance Adjustable
Rated Flow 93.75 LPM (25 GPM)
Cylinder Port
Elements
Logic
Maximum 350 Bar (5000 PSI)
DC Pilot
Inlet Pressure
Leakage at 5 drops/min. (.33 cc/min.) @ Valve Port
150 SSU (32 cSt) 80% of thermal crack pressure
Controls
Directional
MHC-022-V*N* Vented Counterbalance Non-Adjustable
MV
Cartridge Material All parts steel. All operating
Cylinder Port External Vent
parts hardened steel.
Operating Temp. -40°C to +93.3°C (Nitrile) Pilot
Manual
Valves
Range/Seals (-40°F to +200°F)
SV
-31.7°C to +121.1°C (Fluorocarbon)
Valve Port
(-25°F to +250°F)
Fluid Mineral-based or synthetic with Performance Curve
Solenoid
Valves
Compatibility/ lubricating properties at viscosities
PV
Viscosity of 45 to 2000 SSU (6 to 420 cSt) Flow vs. Pressure Drop (Through cartridge only)
PSI Bar Hydraulic Oil 150 SSU @ 100°F (32 cSt)
Filtration ISO Code 16/13, 800 55.2
SAE Class 4 or better
Valves
Proportional
CE
Approx. Weight .44 kg (1.0 lbs.)
600 41.4
Pressure Drop 400 27.6
Cavity CDD-1036
(See BC Section for more details) Controlled Flow
Electronics
Coils &
BC
Form Tool FR-501
200 13.8
Free Flow
Bodies &
Cavities
TD
0
LPM 37.9 75.7 113.6 151.4
0
GPM 10 20 30 40
Flow (Q)
Data
Technical
LM9 Parker Hannifin Corporation
Hydraulic Cartridge Systems