Cashco PGR-1 Manuel d'utilisateur

INSTALLATION, OPERATION & MAINTENANCE MANUAL (IOM) IOM-PGR-103-14I. DESCRIPTION AND SCOPEModel PGR-1 is a pressure reducing regulator used to

IOM-PGR-1109. Bench test unit for suitable operation. NOTE: Regulators are not tight shutoff de-vices. Even if pressure builds up beyond set point

IOM-PGR-111SECTION VIIIVIII. TROUBLE SHOOTING GUIDEWhen trouble shooting this regulator there are many possibilities as to what may be causing problem

IOM-PGR-1124. Diaphragm continually breaks (all regulators).Possible Causes RemediesA. Differential pressure across diaphragm may have exce

IOM-PGR-113METERING VALVEAssembled View

IOM-PGR-114 Item No. Description 1 Body 2 Cover Dome 4 Cage 5 Plug 6 Diaphragm * 7 Upper Diaphragm Plate 8

IOM-PGR-115 Item No. Description 31 Body 32 Spring Chamber 33 Body Cap 34 Range Spring 35 Spring Button 36 Pressure

Cashco, Inc.P.O. Box 6Ellsworth, KS 67439-0006PH (785) 472-4461Fax (785) 472-3539www.cashco.comemail: [email protected] Printed in USA IOM-PGR-1Cash

IOM-PGR-12IV. PRINCIPLE OF OPERATION1. When a loading pressure – PLoad – is applied to the top side of a diaphragm, the outlet controlled pressure –

IOM-PGR-13VI. SHUTDOWN1. Shutoff inlet block valve.2. Allow suffi cient time for the line pressure down- stream of the inlet block valve to bleed down

IOM-PGR-14d. Examine the com po nent(s) (15 or 15.1, 15.2) of the dy nam ic side seal to de ter- mine if sig nifi cant leakage was oc cur ring. If t

IOM-PGR-153. QC Requirements:a. Valve plug (5);1. 16 rms fi nish on its seating surface for tight shutoff.2. No major defects on bottom guide spin dl

IOM-PGR-162. Place properly oriented seat (10) onto its shoul der at the lower end of cage (4).3. Place new o-ring lower stem seal (13) into groove

IOM-PGR-17 1. Shut down system in accordance Section VI. 2. Disconnect the external sensing line, from the pilot valve sensing port.3. Loosen all

IOM-PGR-1811. Engage threads of the adjusting screw (47) into the spring chamber (32) three or four revolutions and place the spring chamber over the

IOM-PGR-191. Loosen adjusting screw nut (71) one revo-lution CCW. Relax range spring (75) forces by rotating adjusting screw (68) CCW until removed