Cashco HP-1+6+S Bedienungsanleitung PDF herunterladen

INSTALLATION, OPERATION & MAINTENANCE MANUAL (IOM)

IOM-HP-S-

DIFF

12-13

MODEL HP-1+6+S

HIGH PRESSURE DIFFERENTIAL

REDUCING REG U LA TOR

I. DESCRIPTION AND SCOPE

The Model HP-1+6+S is a heavy duty, high pres-

sure differential reducing regulator used to control

differential pressure between downstream outlet (P

)

pressure and a loading (P

LOAD

) pressure to the spring

chamber. This unit applies to Cashco drawing nos.

32911 (Non-NACE construction), 32909 (CS NACE

construction), or 32907 (SST NACE construction).

Sizes are 1/2", 3/4", and 1-1/2" (DN15, 20, and 40).

II. INSTALLATION

This unit was designed and is used almost exclusively on compressor and turbo ex pand er seal gas systems. REFER

TO COM PRES SOR / EX PAND ER MAN U FAC TUR ER'S MAN U AL FOR DETAILED IN STAL LA TION, START-UP

AND SHUTDOWN OF THIS UNIT. Install regulator in ac cor dance with direction of ﬂ ow arrow cast on body (1).

SECTION III

III. PRINCIPLE OF OPERATION

1. The HP-1+6+S is used to main tain a con stant

differential pressure across the seals of a

com pres sor/expander. A dif fer en tial pres sure re-

duc ing reg u la tor senses the down stream or outlet

) pres sure on the lower side of the diaphragm

and is opposed by the force of the range spring

plus an ad di tion al loading (P

LOAD

) pressure con-

nect ed to the spring cham ber. The loading (P

LOAD

)

pres sure plus the range spring (14) setting (P

SET

)

equals the outlet (P

) pres sure of the reg u la tor.

The range spring setting (P

SET

) is the differential

setting.

SECTION II

HP-1+6+S

DIFFERENTIAL SCHEMATIC

SECTION I

CAUTION A

NOT FOR STEAM SERVICE. NOT FOR OXYGEN SERVICE.

CAUTION

For welded installations, all internal trim parts, seals and

diaphragm(s) must be removed from reg u la tor body prior to

welding into pipeline. The heat of fusion welding will dam-

age non-metallic parts if not re moved. NOTE: This does

not apply to units equipped with extended pipe nip ples.

CAUTION

Installation of adequate overpressure pro tec tion is recom-

mended to pro tect the reg u la tor from overpressure and

all down stream equip ment from damage in the event of

regulator failure.

CAUTION

Option-1+6 contains single di a phragm con struc tion. In

the event of diaphragm fail ure, the process ﬂ u id will mix

with the load ing ﬂ uid. Please alert your rep re sen ta tive so

an al ter na tive product can be se lect ed.

This unit is most commonly applied to develop a con-

stant differential pressure across a rotating shaft seal

to provide proper sealing and lubricating conditions

over varying pressure ranges. Refer to Tech ni cal

Bulletin HP-S-DIFF-TB for design con di tions and

se lec tion rec om men da tions.

1 2 3 4 5 6 7 8

Inhaltsverzeichnis

Seite 1

INSTALLATION, OPERATION & MAINTENANCE MANUAL (IOM) IOM-HP-S-DIFF 12-13MODEL HP-1+6+SHIGH PRESSURE DIFFERENTIAL REDUCING REG U LA

Seite 2 - CAUTION B

IOM-HP-S-DIFF2V. SHUTDOWNSECTION V SECTION IV* NOTE: Systems sequencing operations at startup, normal operation, failure mode(s), and shutdown must a

Seite 3

IOM-HP-S-DIFF36. Adjusting screw (6) o-ring inspection: a. With locknut (7) and closing cap (28) re moved, turn adjusting screw (6) CW as far as po

Seite 4

IOM-HP-S-DIFF4c. Lubricate adjusting screw (6) threads. Carefully re in stall the adjusting screw (6) up into the spring cham ber (2) by ro tat ing

Seite 5 - Piping Schematic for HP-1+6+S

IOM-HP-S-DIFF55. Clean debris from within the regulator body (1) cav i ty. Make certain the old cylinder gas ket (18) is cleaned out of the body (1)

Seite 6 - VII. TROUBLE SHOOTING GUIDE

IOM-HP-S-DIFF6SECTION VIIVII. TROUBLE SHOOTING GUIDEPossible Cause RemedyA. Oversized regulator; inadequate rangeability. A1.A2.A3.A4.A5.Check actual

Seite 7 - SECTION VIII

IOM-HP-S-DIFF7SECTION VIIIPossible Cause RemedyA. Plugged body spacer vent hole. A. Clean vent opening.B. Plugged piston balance port. B. Re move trim

Seite 8

Repair Item No. Description Parts 1 Body 2 Spring Chamber 3 Pressure Plate 4 Spring Button 5 Body Cap 6 Adjusting Screw 7 Lock Nut 9 Flange

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