Micro retarder closed butterfly check valve
product description
Type：micro resistance slowly-closing
Nominal Size：NPS2～NPS56
Pressure Grade：Class150～Class300
Working Temperature：-29℃～200℃
Body Material: Carbon steel,Stainless steel,cast iron
Design standard：AWWA C508，CJ/T 154, GB/T13932,GB/T12236
Connection：RF,WAFER,LUG
Operating：Auto
Medium：Urban water, industrial water
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