55TLC SERIES

COUNTERBALANCE VALVE

CARTRIDGET SERIES CAVITY, INT. VENTED, CCW ADJUST

Description

A CARTRIDGE STYLE, THREE PORT, PILOT TO OPEN COUNTERBALANCE VALVE WITH AN INTERNALLY VENTED SPRING CHAMBER AND FREE REVERSE FLOW CHECK, INTENDED FOR MOTION CONTROL AND OVER-CENTER LOAD HOLDING APPLICATIONS.

Product Rendering

Schematic

Typical Performance

Operation

  • FLOW FROM (2) TO (1) IS ALLOWED WITH A STANDARD CRACK PRESSURE OF 4 PSI.
  • FLOW FROM (1) TO (2) IS BLOCKED UNTIL THE RELIEF PRESSURE SETTING HAS BEEN EXCEEDED.
  • BACK PRESSURE AT PORT (2) IS ADDITIVE TO RELIEF SETTING.
  • FLOW FROM (1) TO (2) IS BLOCKED UNTIL A PILOT PRESSURE INVERSELY PROPORTIONAL TO THE LOAD PRESSURE IS APPLIED TO THE PILOT PORT.

Features

  • LOW RELIEF HYSTERESIS.
  • PILOT RATIOS UP TO 10:1 AVAILABLE (HIGHER PILOT RATIOS MAY REDUCE FLOW CAPACITY)
  • QUIET, STABLE OPERATION.
  • ADJUSTABLE WITH LOCKING NUT.
  • SEALED PILOT PISTON, LOW INTERNAL LEAKAGE.
  • COUNTERCLOCKWISE ADJUSTMENT TO INCREASE RELIEF SETTING.

Specifications

INTERNAL LEAKAGE 5 DROPS/MIN. MAX.
OPERATING PRESSURE 5000 PSI
RELIEF SETTING RANGE 500 - 5000 PSI
RELIEF TOLERANCE +/- 10%
STANDARD CRACK PRESSURE 4 PSI
TEMPERATURE RANGE 250°F TO -40°F

Ordering Information

MODELTHREADFLOW CAPACITYCAVITYL1L2 (MAX.)HEXABCSD (MAX.)TORQUE
55T11LCM20 X 1.515.0 GPMT-11A1.382.250.9380.8500.807 /
0.809
0.855 /
0.857
0.85030 ft-lbs

MODEL

THREAD

FLOW CAPACITY

CAVITY

L1

L2 (MAX.)

HEX

A

B

C

SD (MAX.)

TORQUE

55T11LCView More

M20 X 1.5

15.0 GPM

T-11A

1.38

2.25

0.938

0.850

0.807 / 0.809

0.855 / 0.857

0.850

30 ft-lbs