21850 SERIES

FLOW LIMITER

INLINE • SLIP-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

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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

This document, as well as all catalogs, price lists and information provided by Vonberg Valve, Inc., is intended to provide product information for further consideration by users having substantial technical expertise due to the variety of operating conditions and applications for these valves, the user, through its own analysis, testing and evaluation, is solely responsible for making the final selection of the products and ensuring that all safety, warning and performance requirements of the application or use are met.

The valves described herein, including without limitation, all component features, specifications, designs, pricing and availability, are subject to change at any time at the sole discretion of vonberg valve, inc. without prior notification.