Liquid Controls M Series User Manual

M & MA Series Meters
27
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Servicing the Packing Gland
After prolonged use, the packing gland may show leakage from the metering chamber.
Leakage is a sign of wear, resulting from the type of product being metered, the operating
temperature, and other system conditions. If the packing gland shows leakage, it should be
replaced or repaired. The packing gland can be serviced in the field.
Packing Gland Components (refer to the figures below)
1. Driver
2. Shaft
3. Stainless steel thrust washer
4. Rulon thrust washer
5. Buna/Viton/PTFE “U” Cup
6. Aluminum/stainless housing
7. Washer - Nylon
8. Output gear 2:1
9. Retaining ring
10. Bushing
11. Retaining plate
12. Buna/Viton/PTFE O-ring
13. Two retaining plate screws
14. Output gear 1:1
15. Carbon Guide Bearing
16. Washer - Stainless Steel

Liquid Controls M Series Specifications

General

Temperature Range	-40°F to +160°F (-40°C to +71°C) standard, extended ranges available
Materials	stainless steel
Type	Positive displacement flow meter
Fluid Compatibility	fuels, oils, and chemicals
Sizes	6"
Output Options	Pulse