Aluminum A356 is made by gravity casting followed with T6 heat treatment. Die casting is cost efficient, yet less strong. Stainless steel or brass arm package is of choice, in combination with NBR or EPDM gasket.
2：
Stainless steel 90° bent arm is supplied in combination with NBR gasket. Steel chain is optional on request.
3：
Brass 57 sized 1/2" to 3" are produced by forging, bigger ones by casting process. Brass arm package including pin, ring and clip is standard, chain in CS or SS optional on request. NBR or EPDM can be provided.
4：
Stainless steel AISI316 and 304 are made by investment casting. Other grades, like Hastalloy, are possible. Stainless package of arm, pin, ring and clip is standard with and without stainless steel chain.
