5000 SERIES

COUNTERBALANCE VALVE

CARTRIDGESTANDARD CAVITY, INT. VENTED

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

Operation

  • BACK PRESSURE AT PORT (2) IS ADDITIVE TO RELIEF SETTING.
  • FLOW FROM (1) TO (2) IS BLOCKED UNTIL THE RELIEF PRESSURE SETTING HAS BEEN EXCEEDED.
  • FLOW FROM (1) TO (2) IS BLOCKED UNTIL A PILOT PRESSURE INVERSELY PROPORTIONAL TO THE LOAD PRESSURE IS APPLIED TO THE PILOT PORT.
  • FLOW FROM (2) TO (1) IS ALLOWED WITH A STANDARD CRACK PRESSURE OF 25 PSI.

Features

  • PILOT RATIOS UP TO 10:1 AVAILABLE (HIGHER PILOT RATIOS MAY REDUCE FLOW CAPACITY)
  • LOW RELIEF HYSTERESIS.
  • INDUSTRY COMMON CAVITY.
  • QUIET, STABLE OPERATION.
  • SEALED PILOT PISTON, LOW INTERNAL LEAKAGE.
  • ADJUSTABLE WITH LOCKING NUT.
  • CLOCKWISE 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 25 PSI
TEMPERATURE RANGE 250°F TO -40°F

Ordering Information

MODELTHREADFLOW CAPACITYCAVITYL1L2 (MAX.)HEXABTORQUE
50069/16 - 183.0 GPMFC06-31.231.300.690.438 /
0.439
0.467 /
0.468
15 ft-lbs
50083/4 - 167.0 GPMVC08-31.631.380.880.558 /
0.560
0.621 /
0.623
20 ft-lbs
50107/8 - 1415.0 GPMVC10-31.851.781.000.621 /
0.623
0.683 /
0.685
25 ft-lbs
5010S7/8 - 1415.0 GPMVC10-S31.852.001.000.683 /
0.685
0.746 /
0.748
25 ft-lbs
50121 1/16 - 1225.0 GPMC-12-3S2.251.781.250.870 /
0.873
0.933 /
0.935
40 ft-lbs

MODEL

THREAD

FLOW CAPACITY

CAVITY

L1

L2 (MAX.)

HEX

A

B

TORQUE

MODEL

THREAD

FLOW CAPACITY

CAVITY

L1

L2 (MAX.)

HEX

A

B

TORQUE

MODEL

THREAD

FLOW CAPACITY

CAVITY

L1

L2 (MAX.)

HEX

A

B

TORQUE

MODEL

THREAD

FLOW CAPACITY

CAVITY

L1

L2 (MAX.)

HEX

A

B

TORQUE

MODEL

THREAD

FLOW CAPACITY

CAVITY

L1

L2 (MAX.)

HEX

A

B

TORQUE

5006View More

9/16 - 18

3.0 GPM

FC06-3

1.23

1.30

0.69

0.438 / 0.439

0.467 / 0.468

15 ft-lbs

5008View More

3/4 - 16

7.0 GPM

VC08-3

1.63

1.38

0.88

0.558 / 0.560

0.621 / 0.623

20 ft-lbs

5010View More

7/8 - 14

15.0 GPM

VC10-3

1.85

1.78

1.00

0.621 / 0.623

0.683 / 0.685

25 ft-lbs

5010SView More

7/8 - 14

15.0 GPM

VC10-S3

1.85

2.00

1.00

0.683 / 0.685

0.746 / 0.748

25 ft-lbs

5012View More

1 1/16 - 12

25.0 GPM

C-12-3S

2.25

1.78

1.25

0.870 / 0.873

0.933 / 0.935

40 ft-lbs