28951-100 SERIES

FLOW LIMITER

INLINEFEMALE NPTF TO MALE NPTF

Description

AN IN-LINE FLOW LIMITER WITH A FEMALE NPTF INLET AND A MALE NPTF OUTLET THAT PREVENTS FREE FALL IN THE EVENT OF A LINE FAILURE, BUT ALLOWS A METERED FLOW AFTER CLOSING.

Product Rendering

Schematic

Typical Performance

Operation

  • BLEED RATE AFTER CLOSING IS 2.0 - 3.0 GPM AT 3000 PSI.
  • 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.
  • A FLOW BELOW THE SPECIFIED LIMIT IS ALLOWED FROM (1) TO (2).

Features

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

Specifications

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

Ordering Information

ModelINLET 1OUTLET 2FLOW RANGELHEX
28951-1021/4-18 NPTF PORT1/4-18 NPTF 0.5 TO 10.0 GPM2.850.750
28951-1033/8-18 NPTF PORT3/8-18 NPTF 1.0 TO 25.0 GPM3.250.875
28951-1041/2-14 NPTF PORT1/2-14 NPTF 2.0 TO 40.0 GPM3.301.125
28951-1063/4-14 NPTF PORT3/4-14 NPTF 2.0 TO 50.0 GPM3.651.375

Model

INLET 1

OUTLET 2

FLOW RANGE

L

HEX

Model

INLET 1

OUTLET 2

FLOW RANGE

L

HEX

Model

INLET 1

OUTLET 2

FLOW RANGE

L

HEX

Model

INLET 1

OUTLET 2

FLOW RANGE

L

HEX

28951-102View More

1/4-18 NPTF PORT

1/4-18 NPTF

0.5 TO 10.0 GPM

2.85

0.750

28951-103View More

3/8-18 NPTF PORT

3/8-18 NPTF

1.0 TO 25.0 GPM

3.25

0.875

28951-104View More

1/2-14 NPTF PORT

1/2-14 NPTF

2.0 TO 40.0 GPM

3.30

1.125

28951-106View More

3/4-14 NPTF PORT

3/4-14 NPTF

2.0 TO 50.0 GPM

3.65

1.375