cashco ULR-1 Handbuch für Installation, Betrieb und Wartung

Blättern Sie online oder laden Sie pdf Handbuch für Installation, Betrieb und Wartung für Controller cashco ULR-1 herunter. cashco ULR-1 17 Seiten. Direct-acting, pressure loaded, pressure reducing regulator with auxiliary air supply

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ISO Registered Company

I. DESCRIPTION AND SCOPE

The Model ALR-1 uses the pressure set point of a back pressure regulator (Unloader) to control the outlet

pressure of the reducing regulator. Sizes are 1/2" (DN15), 3/4" (DN20), 1" (DN25), 1-1/4" (DN32), 1-1/2" (DN40),

2" (DN50), 3" (DN80) and 4" (DN100). This model is suitable for gaseous applications.

II. REFERENCES

Refer to Technical Bulletin ALR-1-TB for tech ni cal

specifications for this reg u la tor.

III. INSTALLATION

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.

1. This regulator may be rotated around pipe axis

360 degrees. For ease of maintenance, the

rec om mend ed position is with the cover dome

(25) up wards.

2. Provide space below, above, and around reg u la-

tor for removal of parts during maintenance.

3. Install block valves and pressure gauges to pro-

vide means for adjustment, operation, bypass,

or removal of the regulator. A pipeline strainer

is recommended before inlet to remove typical

pipe line debris from entering valve and damaging

internal "soft goods", primarily the dynamic seal.

4. Downstream Sensing Installation Considerations

– Internal or External Sensing:

a. The regulator may be installed with internal or

INSTALLATION, OPERATION & MAINTENANCE MANUAL (IOM)

MODEL ALR-1

DIRECT-ACTING, PRESSURE LOADED,

PRESSURE REDUCING REGULATOR

with AUXILIARY AIR SUPPLY

CAUTION

SECTION I

SECTION II

CCW –

SECTION III

Installation of adequate overpressure pro tec tion is

recommended to pro tect the reg u la tor from overpressure

and all down stream equip ment from damage in the event

of regulator failure.

external sensing. Unless otherwise spec i fied,

the regulator is supplied by factory with internal

sensing. The regulator may be con vert ed in

the field to external sensing. (See Section VII

Maintenance, Part G – Converting Internal/

External Sensing.

b. Reference ALR-1-TB, Table -11 for rec om-

men da tions when to apply external sensing.

c. For internal sensing, no external line is re-

quired. For external sensing, use an external

control line. The line is connected from the

1/4" (DN8) NPT tap (Port 5 – See Fig. 5) on

the side of the body di a phragm flange to a

pressure tap down stream of the regulator. Use

1/4" or 3/8" (DN8 or 10) outer di am e ter tubing

or 3/8" (DN10) pipe having an inner di am e ter

equiv a lent to Schedule 40 pipe.

ABBREVIATIONS

–

Clockwise

Counter Clockwise

ITA

–

Inner Trim Assembly

CAUTION

IOM-ALR-1

02-20