- ページ 6

コントローラー cashco POSR-1-20のPDF インストレーション、オペレーション＆メンテナンスマニュアルをオンラインで閲覧またはダウンロードできます。cashco POSR-1-20 12 ページ。 Pilot operated pressure re duc ing regulator

ページを印刷する

15. Using needle nose pliers, carefully remove

the screen (6) from the body (1) recess.

16. Inspect body cap (9), screen (6), plug spring (7),

and plug (4.2) for buildup or filming. If parts are

"sticking" together, then improper condensate

corrosion treatment is likely. If scale or other

debris is present, then an up stream strainer

is recommended.

17. Using a 5/8" deepwell socket, rotate valve seat

(4.1) CCW (viewed from above) to re mov al.

18. Remove seat gasket (8) using a tool with a

bent sharp end. Discard the seat gasket (8).

19. Using a sharp edged tool, clean all gasket

sur fac es, and metal-to-metal contact sur fac es

of body (1), valve seat (4.1) and body cap (9).

20. Lap plug (4.2) with valve seat (4.1) using

a suitable lapping compound. Do for new

re place ment plug (4.2) and seat (4.1) also.

21. Solvent clean all loose internal parts of pilot

valve (PV). Inspect the valve seat (4.1) and

plug (4.2) for wear. Replace the valve seat

(4.1) and plug (4.2) together, even if only one

piece shows significant wear. Solvent clean

body (1).

22. Place body (1) into vise with body cap (9)

opening upwards.

23. Place seat gasket (8) into recess.

24. Put thread lubricant onto valve seat (4.1), and

rotate valve seat (4.1) into threaded re cess by

rotating CW (viewed from above) until seat

(4.1) shoulders against body (1).

25. NOTE: Replace screen (6) only if necessary.

Using a 3/4" (19 mm) round bar, form and

interlock the flat screen (6) similar to the

removed screen (6) being re placed. Slide

formed screen (6) off of bar. Insert the screen

into the body recess and over the hex points

of the valve seat (4.1). Ensure concentricity

of positioned screen (6).

26. Place plug spring (7) into recess of plug (4.2),

and position plug's (4.2) stem-end through the

valve seat (4.1).

27. Place thread lubricant on threads of body cap

(9). Capture protruding plug (4.2) end and plug

spring (7) with body cap (9) recess. Rotate

body cap (9) CW (viewed from above) until

shouldering on body (1). Hammer rap wrench

handle to ensure tightness.

28. Remove body (1) from vise and reposition with

di a phragm flange oriented on top.

29. Place thread sealant/lubricant onto threads

of bellows (11). Insert flat-end of stem

extension (10) into the center of the bellows

(11); cham fered end of stem ex ten sion (10)

should be protruding bellows (11). Invert

bellows (11) with stem extension (10) into

body (1) recess. Allow stem extension (10) to

"fall" into thread ed opening for bellows (11).

Align threaded por tion of bellows (11); rotate

CW (viewed from above) the same number

of engaged rev o lu tions recorded in article 8.

previous, this sub-sec tion.

30. Place diaphragm gasket (13) onto body's (1)

flange aligning cutouts of gasket (13) with bolt

hole open ings.

31. Place diaphragm(s) (12) onto body (1)

po si tioned concentrically. NOTE: Reassemble

pilot valve (PV) ONLY with the number of

di a phragms (12) disassembled with; the 5–15

psig (0.34–1.03 Barg) spring range uses only

one diaphragm (12).

32. Concentrically position pressure plate (14)

onto diaphragm(s) (12).

33. Set range spring (15) over hub of pressure

plate (14).

34. Place multi-purpose, high temperature grease

into recess of spring button (16) where

ad just ing screw (19) bears. Place spring button

(16) over top-end of range spring (15) with

greased recess on top side.

35. Clean threads of diaphragm bolting (17) (18).

Place thread lubricant on bolts (17). Engage

two sets of bolting (17) (18) for ease in ro ta tion;

disengage.

36. Place the two bolts (17) of above, ap prox i mate ly

180° across through body (1) di a phragm

flange from un der neath side. Hold bolts (17)

with fingers of one hand to keep from falling

downwards.

37. Set spring chamber (2) down over the two

pro trud ing bolts (17), aligning the matchmarks

of article 3. pre vi ous, this sub-section.

38. Place the two nuts (18) onto bolts (17) of

above, and finger-tighten.

39. Place remaining bolts (17) through spring

cham ber (2) bolt hole openings. Engage all

IOM-POSR-1