Quality Process Services offers sales and service on most kinds of valve, wellhead valves, choke valves, header valves, check valves, control valves, dump valves, gate valves, ball valves, plug valves, 3-way and 4-way divert valves. We also include entire wellhead services. QPS also offers the same services on actuators and actuated valves including piston, diaphragm, and rotary. QPS can repair control valves and actuators for process control applications as well as pressure and level controllers. QPS can engineer and design control valve applications and can solve your process problems with suggested trim changes, special trim designs, controller or process modifications. Also QPS offers P.S.V. testing, inspection and repairs in the field and in the shop. From engineering to greasing, QPS is ready to help.