Municipal Products

Stealth Valve

Advantages & disadvantages of seat designs.
Interpretation of AWWA-C-504 guidelines.
Seat adjustment and performance (size, application, type, requirements, the WCB and tuberculation effects)
Industry standards and objective comparisons of current designs based on recent A&M's.
Valve coatings and NSF 61 requirements.
Long term savings and head loss effects.
Suggested industry standard specifications.
Pressure ratings and proportional cost advantages.
Actuator sizing methods – preventing undersizing on manual / electric on-off and modulating.
Valve installation and valve torque effects.
Actuator sizing (unidirectional and bi-directional) cost disadvantages and projected failures.

Actuator Specifications for plant and chambered service.

Methods to prevent valve or actuator failure.
The hollow disc design (why this should be avoided).
Actuators containing dextrin II in open membrane municipal applications.(danger)
Torque tube / shaft extension design standards, suggested specifications and preventing failures blamed on the valve.
Suggested specifications for submerged service.

Ross Control Valves

Design - options and performance expectations.
Applications- The Ross Water Tamer (used by GVRD)
Head loss effects
Effects of chloromines and elastomer degradation – all valves.
Optional seat design selection for optimum performance.
Preventing catastrophic failure on pump control and pressure sustaining applications.
Diaphragm Vs Piston objective comparisons and suggested specifications.