SPX FLOW APV DELTA RGMS4 Instruction Manual page 20

APV
APV_RGMS4_UK-1_112018.qxp
fig. 9
upper
valve shaft
15
10. Service Instructions
10.2. Disassembly of valve to replace wear parts
1. See chapter 10.1, items 1. -7.
2. Remove the valve seat (27/27.1) from the housing (1).
3. Remove the housing seals (8) and flange seals (3).
4. Release the coupling between actuator rod and valve shaft.
5. Release the coupling head (29) and counternut (22) from the
upper valve shaft (13).
Note:
6. Pull the valve shaft with diaphragm (15), fan (16)
and diaphragm support (17) out of the yoke (12).
7. Clamp the upper valve shaft (13) with the key surface in a vice
(Attention: Use protective chops!) and release the lower valve
shaft (25).
Remove Loctite residues from the thread and thread bore.
8. Remove the diaphragm (15) and fan (16) from the upper valve
shaft. Remove the o-ring (18) from the fan.
9. Remove the seat seal (26) from the lower valve shaft (25).
10. Remove the o-rings (14, 11) and guide bush (10) from the
yoke (12).
10.3. Disassembly of valve to modify kvs values or characteristics
1. See chapter 10.1, items 1. - 7.
2. See chapter 10.2, items 2. - 6.
3. If a replacement of the diaphragm actuator (30) is required for
the modification of the kvs value, remove the air hose (19) and
remove the nut and actuator if necessary.
Observe adjusting dimension between
counternut and valve shaft (see fig. 9).
Modulating valve with product diaphragm
UK
DELTA RGMS4 - MFS + MFH 3A
Instruction manual: rev. 1