Our Goyen replacement Valves & Repair Kits range from 3/4" port size valves in NPT or British Thread, to 3" port size with Viton (High Temperature), Silicone (Above 500F), Nylon (Normal Temp), and Buna or NBR (for Acidity); and are good for 1-3million cycle times. We also supply the solenoid repair kits for a 1/8" Pilot and 1/4" Pilot for various coil voltages and arrangements. Contact us to request a price on your next Goyen Valve change out.