Cashco 1000 Cryogenic User Manual download pdf

INSTALLATION, OPERATION & MAINTENANCE MANUAL

MODEL 1000HP - CRYOGENIC

PRESSURE REDUCING REGULATOR

SECTION I

IOM-1000HP-

Cryogenic

12-13

I. DESCRIPTION AND SCOPE

The Model 1000HP-5 and 1000HP-36 are cryogenic pressure reducing regulators used to control down stream

(outlet or P

) pressure to levels above 10 psig, and up to 300 psig (size dependent). Sizes are 1/2", 3/4", 1",

1-1/2" and 2".

The unit is designed for liquid or gaseous service with proper trim utilization, and proper jet selection.

Refer to Technical Bulletin 1000HP-CRYO-TB for sizing, application and selection recommendations.

Installation, operation and maintenenace manuals (IOM's) exist for the following other Model 1000 products:

1000HP-Basic 1000LP-Basic 1000HP-Differential

SECTION II

II. INSTALLATION

1. An inlet block valve should always be in stalled.

2. If service application is continuous such that

shut down is not readily accomplished, it is rec-

om mended that an inlet block valve, and a manual

bypass valve be in stalled.

3. Pipe unions must be installed to allow re mov al

from piping. Trim can only be changed by unit

removal from pipeline. If ﬂ anges are uti lized, a lap

joint ﬂ ange is required on the inlet end of the valve

to help align bolt holes as the cylinder screws into

place.

4. An outlet pressure gauge should be located ap-

prox i mate ly ten pipe diameters down stream, and

within sight.

5. All installations should include a down stream relief

de vice if the inlet pressure could exceed the pres-

sure rating of any downstream equip ment or the

maximum outlet pressure rat ing of the unit.

6. Clean the piping of all foreign ma te ri al in clud ing

chips, welding scale, oil, grease and dirt before

in stall ing the valve. Strain ers are rec om mended.

CAUTION

Installation of adequate overpressure pro tec tion is recom-

mended to pro tect the reg u la tor from over pres sure and

all down stream equip ment from dam age in the event of

regulator failure.

WARNING

The maximum outlet pressure listed on the name plate is

the "upper operative limit" for the sensing diaphragm.

Higher pressures could damage the diaphragm. (Field

hy dro static tests frequently de stroy dia phragms. DO

NOT HY DRO STAT IC TEST THRU AN INSTALLED UNIT;

ISO LATE FROM TEST.)

1 2 3 4 5 6 ... 11 12

Summary of Contents

Page 1 - PRESSURE REDUCING REGULATOR

INSTALLATION, OPERATION & MAINTENANCE MANUALMODEL 1000HP - CRYOGENICPRESSURE REDUCING REGULATOR SECTION IIOM-1000HP-Cryogenic12-13I. DESCRIPTION

Page 2 - SECTION III

10 IOM-1000HP-CryogenicPossible Causes RemediesA.Regulator not closing tightly.A1.A2.A3.A4.A5.A6.Overly compressed range spring; i.e. approaching soli

Page 3 - SECTION VI

IOM-1000HP-Cryogenic11SECTION VIIINEW REPLACEMENT UNIT:Contact your local Cashco, Inc., Sales Rep re sen- ta tive with the Serial Number and Product c

Page 4

ITEM NO. DESCRIPTION 1. BODY 2. SPRING CHAMBER 3. PRESSURE PLATE 4. SPRING BUTTON 5. PUSHER PLATE 6. ADJUSTING SCREW 7. ADJUSTING SCREW LOCK

Page 5 -

2 IOM-1000HP-Cryogenicdrip melted condensate as re quired. A purge gas is recommended for the spring cham ber.10. Regulators are not to be direct bur

Page 6

IOM-1000HP-Cryogenic3SECTION IVVI. MAINTENANCE A. General:1. Maintenance procedures hereinafter are based upon removal of the regulator unit from th

Page 7 - CAUTION

4 IOM-1000HP-Cryogenic8. Place the pusher plate stud (13) in a sepa rate vise, gripping the stud (13) on the hex ago nal cast-in-place edges located

Page 8

IOM-1000HP-Cryogenic5 Dim. Mat'lValve Size1/2" 3/4" 1" 1-1/4" 1-1/2" 2"A BR 7/8" 1-5/32" 1-7/16&qu

Page 9 - SECTION VII

6 IOM-1000HP-Cryogenic25. Reinstall adjusting screw (6) with locknut (7).26. Soap solution test around bolting (8 and 9), body (1), spring chamber (

Page 10 - 10 IOM-1000HP-Cryogenic

IOM-1000HP-Cryogenic7CYLINDER SUB-ASSEMBLY (21) WITHPISTON (24) – METAL SEATEDCONSTRUCTION4. If an Option 1000 -17 piston spring (30) is uti-lized,

Page 11 - SECTION VIII

8 IOM-1000HP-Cryogenic6. If a composition (soft) seat trim design is uti- lized, use the following sub-steps:a. Tighten the "ﬂ ats" of the

Page 12

IOM-1000HP-Cryogenic9SECTION VIIVII. TROUBLE SHOOTING GUIDEPossible Causes RemediesA. Oversized regulator; inadequate rangeability. A1.A2.A3.A4.Check

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