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Series HFPC & HFPS Plastic Flow Meters

Specifications - Installation and Operating Instructions

Bulletin F-71

DWYER INSTRUMENTS, INC.

Phone: 219/879-8000 www.dwyer-inst.com

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: 219/872-9057 e-mail: info@dwyer-inst.com

The New HFPC & HFPS Series Flowmeters are made of injection molded,

polycarbonate and polysulfone bodies. Series HFPC and HFPS flowmeters have

dual scales measuring in both GPM and LPM with ±5% full scale accuracy.

Models are available with 1/2˝, 3/4˝ or 1˝ male or female NPT connections. Female

1/2˝, 3/4˝ and 1˝ BSPP connections are also available. Rugged construction

allows these meters to handle maximum pressures of 325 PSIG and 200 F. Units

can be mounted in any position, even applications with downward flow.

CAUTION: Series HFPC & HFPS Flowmeters are for indoor use only or

areas without direct sunlight. Polycarbonate & polysulfone are adverse-

ly affected by ultraviolet light.

INSTALLATION

The casing and union retainers are made of either Polycarbonate or

Polysulfone materials permitting use with a variety of media. Use of mild

detergent to clean the meter body is encouraged to prevent damaging the

label or associated components.

The meters are mounted in-line and are direct reading. The meters can be

mounted in a vertical or horizontal position as long as the fluid is flowing in

the direction of the arrow on the flow scale. No straight pipe is required

before or after the meter. In fact, 90° elbows can be installed on both ends

without any noticeable flow variation. When installing a meter, apply

“Plumbers Tape” or “Liquid Plumber’s Sealant” on pipe threads. If tape is

used, be sure to leave 1/8" (3 mm) of pipe thread exposed on end of pipe.

Position filter in front of meter and in a location that allows easy access for

routine maintenance.

The meter should not be mounted in a manner such that piping

misalignment or other system components can exert force or produce a

bending moment on the pressure vessel.

To retain accuracy and repeatability internal moving parts are closely

toleranced and require filtration of at least 74 micron or a 200 mesh screen.

When installing meters onto threaded pipe caution should be taken not to

over tighten the pipe connections or introduce torque on the main body of

the meter. The meter main body may rupture if over-tightened.

SPECIFICATIONS

Service: Compatible liquids.

Wetted Materials: HFPC: Polycarbonate body, Buna-N seals, Stainless

Steel spring, Polysulfone connections. HFPS: Polysulfone body, Buna-N

seals, Stainless Steel spring, Polysulfone connections.

Maximum Pressure: 325 PSIG (22.4 bar).

Maximum Temperature: HFPC: 200˚ F (93˚ C) HFPS: 250˚ F (121˚ C).

Accuracy: +/-5% FS.

Repeatability: +/-1% FS.

Pressure Loss: See chart.

Weight: Standard models 1 lb (453.6 g). Models with optional brass

connections 2 lb (907 g).

ø2-7/16

[61.91]

METER SIZE

1/2 MALE

1/2 FEMALE

3/4 MALE

3/4 FEMALE

1 MALE

1 FEMALE

DIM “L”

7-11/16 [195.26]

7-5/32 [181.76]

8-1/32 [204.00]

7-9/16 [192.09]

8-3/32 [205.58]

7-9/16 [192.09]

“L”

F-71 5/10/07 3:59 PM Page 1

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DWYER INSTRUMENTS, INC 1

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Series HFPC & HFPS Plastic Flow MetersSpecifications - Installation and Operating InstructionsBulletin F-71DWYER INSTRUMENTS, INC. Phone: 219/879-

Seite 2

INSTALLATION DOS AND DON'TSTo obtain satisfactory operation from a HFPC & HFPS meters, the followingpoints should be considered:DO:• install

Verwandte Modelle: HFPC

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Dwyer HFPS Bedienungsanleitung

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Verwandte Modelle: HFPC

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