Detailed Product Description Product Description Investment Casting Screwed Gate Valves Specifications: 1) Size: 1/2" to 2" 2) Threaded: BSPT, BSP, NPT, DIN2999 3) Working pressure: 200PSI, for W. O. G. 4) Type: Inside screwed bonnet, solid wedge, integral seat, full bore, non-rising stem and hand wheel 5) Material: WCB, CF8, CF8M etc. 6) Investment Casting body and cap.