Assembly Of Valve And Installation Of New Wear Parts - SPX FLOW APV DELTA RGMS4 Instruction Manual

APV
APV_RGMS4_UK-1_112018.qxp
guide bush
o-ring
diaphragm support
o-ring
diaphragm
Apply screw locker
in threaded bore.
lower shaft
Modulating valve with product diaphragm
DELTA RGMS4 - MFS + MFH 3A
Instruction manual: rev. 1
10. Service Instructions
10.4.

Assembly of valve and installation of new wear parts

Attention!
To provide for an easy assembly and an increased lifetime of all
wear parts (seals, guide bushes, o-ring, etc.), the parts must be
slightly greased.
o-ring
The diaphragm is greased on the product-averted side.
Do not use sharp-edged tools for the assembly of the a.m. wear
parts to guarantee their full function.
1. Install the housing seal (8) on the valve seat (27/27.1) and insert
both into the housing (1).
2. Insert the flange seals (3) into the housing flange and insert
the flange (5) and install the housing (1) by means of the screws
and nuts (4, 6, 7) in the line system.
Attention!
Provide for proper alignment of the housing to the line flanges.
3. Install the seat seal (26) on the lower valve shaft (25).
upper shaft
Attention!
To prevent air from being included in the groove, use a suitable
tool to vent the groove.
4. Clamp the key surface of the upper valve shaft (13) into a vice.
Insert the o-ring (18) in the fan. Place the diaphragm (15) and
press it into the groove. Secure the
lower valve shaft (25) with a drop of the screw retention
(e.g. type: Loctite semi-solid). Apply the adhesive only in the
fan
threaded bore. Do not apply it in the thread of the upper shaft
(fig. 9.4).
Fasten the lower valve shaft with the upper valve shaft.
5. Insert the diaphragm support (17) in the fan.
! Toothing of fan and diaphragm support must interlock.
6. Insert the guide bush (10) and o-ring (11, 14) in the yoke (12).
7. Introduce the preassembled valve shaft in the yoke.
The upper shaft must be guided smoothly through the guide bush
into the yoke. In case of stiffness, check the even fit of the guide
bush.
seat seal
UK
16