... 3''- 4'', 200PSI(14.8bar); 6'', 150PSI(10.5bar);6. Thread: ANSI B1.20(NPT), BS21, DIN259, DIN2999; Accurate dimension , ... 100% final check for every valve can be guaranteedSUPERIORITY1/2"-6" NPT/BSP/DIN Thread Stainless Steel 304/316 Quick Coupling ... stainless products manufacturer, we can produce stainless steel ball valve, gate valve,check valve, cut-off valve, camlock couplings from Type A to Type ...