Troubleshooting; Technical Data - ProMinent DHV-RM Mode D'emploi

Fault
Pressure drops below
set level
Setting pressure cannot
Leak at diaphragm (5)
Leak at adjusting screw (13)
Materials
Item*
2 Spring dome
4 Thrust washer
8 Compression spring
7 Spring plate
5 Formed diaphragm
3 Separating disc
10 Piston
15 Valve seat seal
22 Connection seal
1 Valve body
12 Connecting screw
1 2
PTFE with carbon; PTFE pure white,
* For item numbers see Fig. 4 and 5
®
Viton is a registered trademark of DuPont Dow Elastomers.
ProMinent ®
Troubleshooting / Technical Data
7

Troubleshooting

(see Fig. 4)
Cause
Valve seat seal (15)
or
valve seat defective
Diaphragm (5) defective
Valve installed wrong way
Contact pressure diaphragm
tension too low
Diaphragm (5) defective
8

Technical Data

Storage and transport temperature:
The backpressure valve must not be exposed to frost!
Combination options:
The backpressure valve can be used together with the metering
pumps G5, Vario, Sigma, Hydro, Meta, Makro TZ and Makro/ 5.
PP1 PC1
PP-GFK PP-GFK
PP PP
Galvanized Galvanized Galvanized
steel steel
PP PP
EPDM/PTFE laminated
PP PVC
PP PVC
EPDM FPM
®
EPDM Viton A
PP PVC
V2A V2A
3
envelope ring PTFE/Viton
Corrective measures
Replace valve seat seal (15)
Consult ProMinent
Replace diaphragm (5)
(Chapter 6)
Turn valve
(observe direction arrow)
Retighten screws (12)
(approx. 6 Nm)
Replace diaphragm (5):
(Chapter 6)
PV1 TT1
PP-GFK PP-GFK
PP PP
Galvanized
steel steel
PP PP
2
PVDF PTFE
2 2
PTFE PTFE
FPM/PTFE FPM/PTFE
® 3
Viton A PTFE
1
PVDF PFTE
V2A V2A
®
SS1
PP-GFK
PP
Galvanized
steel
PP
2
PTFE
2
PTFE
FPM/PTFE
3
PTFE
1.4571
V2A
23