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This is a closing plug with an external square. Stainless steel 316 (1.4408) fittings have excellent corrosion resistance (better than stainless steel 304).
Specifications
Thread : 1/2 inch
Connection type : Outer thread conical BSPT-R
Material : Stainless steel
Max pressure at 20 °C (bar) : 16
Material connection 1 : Stainless steel
Material quality connection 1 : Stainless steel 316 (1.4408)
With drain : No
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