cashco P7 Installatie-, bedienings- en onderhoudshandleiding - Pagina 5

Blader online of download pdf Installatie-, bedienings- en onderhoudshandleiding voor {categorie_naam} cashco P7. cashco P7 9 pagina's. Piston sensing single stage pressure reducing regulator

Pagina afdrukken
9. Clean body (1) and all reusable parts according
to owner's procedures. NOTE: On regulators
originally supplied as "oxygen clean", Option-M,
maintenance must include a level of cleanliness
equal to Cashco's cleaning standard #S-1134.
Contact factory for details.
10. Inspect and replace any necessary parts.
NOTE: Use only parts manufactured and sup-
plied by Cashco, Inc. for these products.
11. Insert plug (12) and spring (15) into body (1).
12. Place backup ring (18) into body cap (16), fol-
lowed by o-ring (19) and guide bushing (20) - flat
side up.
13. Insert spiral retaining ring (21) into groove be-
hind guide busing (20) to lock parts in place.
14. Thread body cap (16) into the body (1) metal
to metal, compressing o-ring (17) into chamfer
of body.
15. Remove body from vise and rotate end to end
180 degrees to reclamp body in vise with body
cap (16) downwards.
16. Thread seat (11) with o-ring (27) (CW) into body
(1) tighten metal to metal.
VII.
CALIBRATION OF POPPET VENT - SPRING LOADED MODEL
Refer to Section IV - Startup - to establish system regulating pressure and flow conditions. Pop knob cover off of the
knob (38). Rotate vent adjustment screw (36) CW, until a hissing sound is heard - then stop. Then slowly turn the vent
adjustment screw CCW until the hissing sound stops. From this point, rotate the vent adjustment screw CCW one more
revolution and stop. The vent relieving function of this model is calibrated.
VIII. TROUBLE SHOOTING GUIDE
1. Erratic operation; chattering.
Possible Causes
A. Oversized regulator; inadequate rangeability.
B. Worn poppet; inadequate guiding. Vented Design
C. Weakened/broken poppet spring. Vented Design
IOM-P7
17. Position baffle plate assembly (7) pin side down
18. Install pin (10) through center of baffle plate (7).
19. Refer to Section VI to re-assemble piston and
G. Diaphragm Replacement - Ratio Loaded Design:
1. Securely install the body (1) in a vise with
2. Remove all bolts (48) and nuts (49) from
3. Remove upper case (44).
4. Remove & replace diaphragm (45).
5. Align bolt holes in upper case (44) with
SECTION VII

SECTION VIII

A1. Check actual flow conditions, re-size regulator for minimum and maximum flow.
A2. Increase flow rate.
A3. Decrease regulator pressure drop; decrease inlet pressure by placing a throttling orifice in
inlet piping union.
A5. Before replacing regulator, contact factory.
B. Replace trim (possible body replacement).
C. Replace poppet spring. Determine if corrosion is causing the failure.
into body (1); align spring pin (9) in proper hole
in body so pitot (8) is visible in center of outlet
threaded connection.
top works to a specific design.
upper & lower case assembly (43) (44)
directed upwards.
upper & lower case assembly.
NOTE: Ensure that pressure plate (46) is
aligned correctly on post (42),
holes in diaphragm (45) & lower case (43).
Insert bolts (48) through holes and thread nuts
(49) on bolts. Torque bolting and nuts to 35 ft.
lbs.
Remedies
5