Cashco C-PRV Bedienungsanleitung PDF herunterladen

INSTALLATION, OPERATION & MAINTENANCE MANUAL

IOM-C-PRV

12-13

MODEL C-PRV

PRESSURE REDUCING REGULATOR

SECTION I

I. DESCRIPTION AND SCOPE

Model C-PRV is a pressure regulator used to control downstream (outlet or P

) pressure. Inlet and outlet sizes

are 1", 1-1/2", 2" and 3" with Tri-Clamp

ﬁ tting connections. This regulator is only suitable for liquids and gases at

temperatures less than 300°F (149°C). Refer to Technical Bulletin C-PRV-TB for speciﬁ c design con di tions.

SECTION II

II. INSTALLATION

A. General:

1. An inlet block valve should always be installed

up stream of the regulator.

2. An outlet pressure gauge should be located

ap prox i mate ly ten pipe diameters down stream

and within sight.

3. All installations should include a downstream

re lief device if the inlet pressure could exceed

the pressure rating of any downstream equip-

ment.

4. Flow Direction: Install so ﬂ ow enters through

the bottom connection and exits the side con-

nection.

5. Install with spring chamber (2) in the vertical

up position to allow for proper draining.

A. General:

1. Ensure that lock-open pin (10) and hitch pin

(15) are in proper po si tion. See Sec tion VII.

2. Conﬁ rm that the proper range spring is in di -

cat ed to be within the regulator by inspection

of the unit’s nameplate. Apply setpoint pres-

sures that are only within the stated range.

SECTION IV

IV. START-UP

III. PRINCIPLE OF OPERATION

A. General:

1. Movement occurs as pressure vari a tions reg is-

ter on the di a phragm. The registering pres sure

is the outlet, P

or downstream pres sure. The

range spring op pos es diaphragm move ment.

As the outlet pressure drops, the range spring

pushes the diaphragm down, opening the port;

as outlet pressure increases, the diaphragm

pushes up and the port opening closes.

2. A complete diaphragm failure will cause the

reg u la tor to fail open

SECTION III

CAUTION

Installation of adequate overpressure pro tec tion is

recommended to pro tect the reg u la tor from overpres-

sure and all down stream equip ment from damage

in the event of regulator failure.

CAUTION

The Model C-PRV should never be used as a shutoff

device.

1 2 3 4 5 6 7 8

Inhaltsverzeichnis

Seite 1 - MODEL C-PRV

INSTALLATION, OPERATION & MAINTENANCE MANUALIOM-C-PRV 12-13MODEL C-PRVPRESSURE REDUCING REGULATORSECTION II. DESCRIPTION AND SCOPEModel

Seite 2

IOM-C-PRV23. When stating direction of rotation of the nut or handle (6), the view is with respect to look ing down towards the spring chamber or its

Seite 3 - CAUTION

IOM-C-PRV35. Loosen thumbclamp screw (13) and remove. a. For Opt-80: 2 piece clamp (13A): Loosen and remove clamp nuts (13B), washers (13D), bolts (1

Seite 4 - VII. CLEANING PROCEDURE

IOM-C-PRV4Figure 2: Spring Chamber in Lock-Open PositionA. Pre-Sanitation:1. Owner should refer to owner’s op er at ing pro ce dures for system shut

Seite 5 - SECTION VIII

IOM-C-PRV5SECTION VIIINEW REPLACEMENT UNIT:Contact your local Cashco, Inc., Sales Rep re sen- ta tive with the Serial Number and Product code. With t

Seite 6 - Forged Body shown above

IOM-C-PRV6Figure 3Forged Body shown aboveSee the next page for Item Number Descriptions.

Seite 7

IOM-C-PRV7Figure 41" Investment Cast Red. Port shown above Item No. Description 1 Body 2 Spring Chamber 3 Pressure Plate 4 Spring Button 5 A

Seite 8

Cashco, Inc.P.O. Box 6 Ellsworth, KS 67439-0006PH (785) 472-4461Fax. # (785) 472-3539www.cashco.comemail: [email protected] in U.S.A. IOM-C-PR

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