BS 1212-3: 1990 : Float operated valves — Part 3. Specification for diaphragm type float operated valves (plastics bodied) for cold water services only (excluding floats)
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This Part of BS 1212 specifies the performance requirements, materials, certain dimension and tolerances of diaphragm type float operated valves (plastic bodied) of norminal size 1/2 for cold water services only, capable of accepting interchangeable low or high pressure renewable seats for use at pressure up to and including 3bar30 and up and
BS 1212-3: 1990 : Float operated valves — Part 3. Specification for diaphragm type float operated valves (plastics bodied) for cold water services only (excluding floats)