This part is a kind of semiconductor called AP4600.

Function of this product has Diaphragm Valve.

Manufacturers : APTech

Image and pinout :

Some of the text within the PDF file :

SERIES AP 3600 & AP 4600 MANUAL 1/4 & 3/8 INCH DIAPHRAGM VALVE Multi Turn Handle • Stainless steel 316L VAR secondary remelt or Hastelloy® alloy C-22® construction Operating Parameters–all valves Inlet pressure Outlet pressure Proof pressure Burst pressure AP 3600 AP 4600 vacuum to 3,000 psig (207 bar) vacuum to 250 psig (17 bar) vacuum to inlet pressure 4,000 psig (276 bar) 8,000 psig (552 bar) ENGINEERING DATA SERIES AP 3600 & AP 4600 MANUAL DIAPHRAGM VALVE • 15 µin. surface finish (10, 7 and 5 µin. optional) • Metal to metal seal to atmosphere Other Parameters–all valves Inlet/outlet connectors Flow coefficient (Cv) AP 3600 AP 4600 Internal volume Operating temperature Surface finish Inboard leakage Outboard leakage Leakage across seat 1/4 or [ ... ]

AP4600 PDF Datasheet Download