Sizes: 15mm, 20mm
Series 9D is specially made for smaller supply lines and ideally
suited for laboratory equipment, processing tanks, sterilizers,
dairy equipment and similar applications. It is particularly recommended
for boiler feed lines to prevent backflow when supply
pressure falls below system pressure.
Series 9D is suitable for use on hot or cold water and can be
used under continuous pressure. It features a primary check
valve utilizing a rubber disc seating against a mating rubber part
to ensure tight closing. A secondary check valve utilizes a rubber
disc-to-metal seating. In the event of fouling of the downstream
check valve, leakage would be vented to atmosphere through
the vent port thereby safeguarding the potable water system.
Construction is brass body with stainless steel working parts, integral
strainer and durable rubber discs. Female union inlet and
outlet connections. Sizes 15mm and 20mm. Drain is 15mm.