Valves Condition to and Control
1. Valve with Roboter Pressure Controller
Combining the Arca Roboter pressure controller with the Arca pressure reducing Valve integrates the functions of a pneumatic positioner and a pressure controller. Ideal for using with Arca stations, these do not require any instrumentation.
2. Desuperheaters
Forbes Marshall Arca Desuperheaters are designed to match your process requirements for desuperheating and attemperation.Common models are Fixed Nozzle Desuperheater (FND) and Variable Nozzle Desuperheater (VND).
3. Combined Pressure Reducing and Desuperheating Valves
Our Combined Pressure Reducing Desuperheating valve uses a revolutionary single piece design to eliminate all the constraints associated with two piece systems, for example: poor and inefficient mixing of cooling water, waterhammer, and wet steam. By injecting cooling water in the highly turbulent vena contracta immediately after pressure reduction, the combined PRDS design ensures perfect mixing, evaporation and desuperheating.Every PRDS is custom engineered to suit your exact pressure and temperature requirements. Also ideal for using with Arca stations.
4. Pressure Reducing Stations, PRDS Stations and Desuperheating Stations
We are your single source for stations,complete with piping and instrumentation.Our stations are supplied complete and ready to fit on your piping.We have a station to suit every need.
5. Control Valves
We've designed our full range of Control and n/Off Valves to match any rigorous application in your plant. Pneumatic diaphragm type actuators offered as standard, with other actuators offered as options. Options also include 3-way diverting and mixing valves and special low dB trims. Internals are nitrided for high pressure drop applications.
6. Specials
Our special valves are the valves of choice at nuclear power plants. Arca bellows sealed globe control valves with standard actuators and bellows actuators find use in demanding applications such as radioactive nitric acid, helium, hydrogen, ammonia and other services. Each valve is tested for helium leakage on request. Other specials include large size angle valves made to order.
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