28059-500 SERIES

FLOW LIMITER

INLINEMALE NPTF TO MALE ORS

Description

AN IN-LINE FLOW LIMITER WITH A MALE NPTF INLET AND A MALE ORS 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.
  • A FLOW BELOW THE SPECIFIED LIMIT IS ALLOWED FROM (1) TO (2).
  • FLOW ABOVE THE SPECIFIED LIMIT IS ASSUMED TO BE A LINE FAILURE AND IS LIMITED.

Features

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

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 RANGELHEXJ
28059-5021/4-18 NPTF-04 ORS - 9/16-180.1 TO 4.0 GPM2.300.6250.389
28059-5033/8-18 NPTF-06 ORS - 11/16-160.5 TO 10.0 GPM2.100.7500.441
28059-5041/2-14 NPTF-08 ORS - 13/16-161.0 TO 25.0 GPM2.340.8750.504
28059-5063/4-14 NPTF-12 ORS - 1 3/16-122.0 TO 40.0 GPM2.751.2500.670
28059-5081-11 1/2 NPTF-16 ORS - 1 7/16-122.0 TO 50.0 GPM3.251.3750.689
28059-5121 1/2-11 1/2 NPTF-24 ORS - 2-125.0 TO 80.0 GPM4.852.1250.689

Model

INLET 1

OUTLET 2

FLOW RANGE

L

HEX

J

Model

INLET 1

OUTLET 2

FLOW RANGE

L

HEX

J

Model

INLET 1

OUTLET 2

FLOW RANGE

L

HEX

J

Model

INLET 1

OUTLET 2

FLOW RANGE

L

HEX

J

Model

INLET 1

OUTLET 2

FLOW RANGE

L

HEX

J

Model

INLET 1

OUTLET 2

FLOW RANGE

L

HEX

J

28059-502View More

1/4-18 NPTF

-04 ORS - 9/16-18

0.1 TO 4.0 GPM

2.30

0.625

0.389

28059-503View More

3/8-18 NPTF

-06 ORS - 11/16-16

0.5 TO 10.0 GPM

2.10

0.750

0.441

28059-504View More

1/2-14 NPTF

-08 ORS - 13/16-16

1.0 TO 25.0 GPM

2.34

0.875

0.504

28059-506View More

3/4-14 NPTF

-12 ORS - 1 3/16-12

2.0 TO 40.0 GPM

2.75

1.250

0.670

28059-508View More

1-11 1/2 NPTF

-16 ORS - 1 7/16-12

2.0 TO 50.0 GPM

3.25

1.375

0.689

28059-512View More

1 1/2-11 1/2 NPTF

-24 ORS - 2-12

5.0 TO 80.0 GPM

4.85

2.125

0.689