The crews are newly formed and do not have alot of experience. Just recently we have found 4 broken 24-inch gate valves.

Fluid will be bearing solids. Discharge is to atnosphere.A spring loaded pinch valve would do but Red Valve limit their pressure to 150psi.

To state whether a certain valve meets NFPA 85 criteria. While we are busy ordering the standard, does anybody here know what the requirement would be for a 10" butterfly valve?

The original API 622 draft was intended to be a test for the packing, whereas ISO 15848 is for the whole valve.

An influent 60" diameter emergency force main that operates at 28 psi for a wastewater treatment plant. 40 psi is the specified operating pressure.

An sluice gate is operating on a pipe with maximum pressures due to an upstream pump of 50 psi and discharges to an open top tank of 10ft depth.

Replacing 2 PRV's(3/4" by 1 1/2" Stainless Steel) on Jet A-1 fuel storage tank inlet 8" and outlet 5" pipeline.

We are specifying 84" x 144" sluice gates in one of our projects and we expect very high torque and thrust required for the actuator to pull up the gate under a head of 40ft water.