Grundfos PLV Series, Инструкция по установке и эксплуатации

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English (GB)
11
7. Fault finding
8. Spare parts and accessories
8.1 Adapter for installation directly on the pump (up to 60 l/h)
* Stainless steel 1.4571, according to EN 10027-2
8.2 Spare parts for pressure loading valves up to 60 l/h
8.3 Set of counter flanges for pressure loading valves DN 32 and DN 65
* Stainless steel 1.4571, according to EN 10027-2
Fault Possible cause Possible remedy
The pressure loading valve does not
produce any counterpressure.
Defective diaphragm. Replace the diaphragm.
Dirt in the pressure loading valve. Rinse the pressure loading valve.
Opening pressure set too low.
Set the pressure loading valve to a higher
opening pressure.
Connections Housing Product number Description
G 5/8 - G 5/8
PVC 95730437 PVC nut G 5/8 - nut G 5/8
PP 95730438 PP nut G 5/8 - nut G 5/8
PVDF 95730439 PVDF nut G 5/8 - nut G 5/8
G 5/8 - 1/4" SS* 96693273 SS nut G 5/8 - 1/4"
Description Suitable for housing materials Product number
Diaphragm all 91834367
Pressure spring all 91834370
Adjusting screw all 96679604
Kit, gaskets 2 pcs - G 5/8 V/E PVC, PP, PVDF 95731456
Kit, gaskets 2 pcs - G 5/8 T PVC, PP, PVDF 95731457
Size Material Product number Description
DN 32 SS* 91835727
Includes lapped flange, headed bush, screws, washers, nuts
DN 32 PVC 91835728
DN 32 PVDF 96727588
DN 65 PVC 96727602
DN 65 PP 96727603
DN 32 PP 96727589 Includes welding neck flange, flat gasket, screws, washers, nuts
DN 65 SS* 96727604 Includes welding neck flange, screws, washers, nuts