21850 SERIES

FLOW LIMITER

INLINESLIP-IN CARTRIDGE

Description

AN IN-LINE, SLIP-IN CARTRIDGE STYLE FLOW LIMITER THAT PREVENTS FREE FALL IN THE EVENT OF A LINE FAILURE, BUT ALLOWS A METERED FLOW AFTER CLOSING.

Product Rendering

Schematic

Typical Performance

Operation

  • BORE DEPTHS ASSUME THE USE OF A STANDARD O-RING BOSS CONNECTOR WITH THREAD LENGTHS BASED ON SAE J514.
  • VALVE BODY IS LEFT WITH APPROX. 0.060" OF SLACK IN THE CAVITY TO PREVENT DAMAGING VALVE.
  • VALVE BODY SEATS ON SMOOTH, FLAT SURFACE OF FITTING IN THE CLOSING FLOW DIRECTION.
  • FLOW FROM (2) TO (1) PASSES THROUGH THE CONTROLLING ORIFICE BUT IS UNCONTROLLED.
  • FLOW ABOVE THE SPECIFIED LIMIT IS ASSUMED TO BE A LINE FAILURE AND IS LIMITED.
  • BLEED RATE AFTER CLOSING IS 2.0 - 3.0 GPM AT 3500 PSI.
  • A FLOW BELOW THE SPECIFIED LIMIT IS ALLOWED FROM (1) TO (2).

Features

  • STEEL COMPONENTS.
  • NON-STANDARD BLEED FLOW RATES ARE AVAILABLE UPON REQUEST.
  • RAPID RESPONSE.
  • FAIL SAFE DESIGN.

Specifications

CLOSING FLOW TOLERANCE +15% / -0%
OPERATING PRESSURE 3500 PSI
REOPENING DIFFERENTIAL 50 PSI
TEMPERATURE RANGE 250° F TO -40° F

Ordering Information

ModelDIA.LFLOW RANGEAB (MAX.)CD
21850-0060.5061.700.5 TO 10.0 GPM2.15 /
2.16
0.3750.510 /
0.515
1.76 /
1.77
21850-0080.6701.880.5 TO 25.0 GPM2.38 /
2.39
0.5000.672 /
0.677
1.94 /
1.95
21850-0100.7951.902.0 TO 40.0 GPM2.46 /
2.47
0.6250.797 /
0.802
1.96 /
1.97
21850-0120.9701.902.0 TO 40.0 GPM2.56 /
2.57
0.8120.972 /
0.977
1.96 /
1.97
21850-0141.0952.142.0 TO 50.0 GPM2.80 /
2.81
0.8121.097 /
1.102
2.20 /
2.21
21850-0161.2202.142.0 TO 50.0 GPM2.80 /
2.81
0.9371.222 /
1.227
2.20 /
2.21
21850-0241.7833.255.0 TO 80.0 GPM3.91 /
3.92
1.4371.787 /
1.792
3.31 /
3.32

Model

DIA.

L

FLOW RANGE

A

B (MAX.)

C

D

Model

DIA.

L

FLOW RANGE

A

B (MAX.)

C

D

Model

DIA.

L

FLOW RANGE

A

B (MAX.)

C

D

Model

DIA.

L

FLOW RANGE

A

B (MAX.)

C

D

Model

DIA.

L

FLOW RANGE

A

B (MAX.)

C

D

Model

DIA.

L

FLOW RANGE

A

B (MAX.)

C

D

Model

DIA.

L

FLOW RANGE

A

B (MAX.)

C

D

21850-006View More

0.506

1.70

0.5 TO 10.0 GPM

2.15 / 2.16

0.375

0.510 / 0.515

1.76 / 1.77

21850-008View More

0.670

1.88

0.5 TO 25.0 GPM

2.38 / 2.39

0.500

0.672 / 0.677

1.94 / 1.95

21850-010View More

0.795

1.90

2.0 TO 40.0 GPM

2.46 / 2.47

0.625

0.797 / 0.802

1.96 / 1.97

21850-012View More

0.970

1.90

2.0 TO 40.0 GPM

2.56 / 2.57

0.812

0.972 / 0.977

1.96 / 1.97

21850-014View More

1.095

2.14

2.0 TO 50.0 GPM

2.80 / 2.81

0.812

1.097 / 1.102

2.20 / 2.21

21850-016View More

1.220

2.14

2.0 TO 50.0 GPM

2.80 / 2.81

0.937

1.222 / 1.227

2.20 / 2.21

21850-024View More

1.783

3.25

5.0 TO 80.0 GPM

3.91 / 3.92

1.437

1.787 / 1.792

3.31 / 3.32