|Contol valves and fail-safe action valves
DN 25 to 400, PN 16, 25 and 40, Kvs 4 to 1600 m3/h
These valves have a wide range of application in heating, ventilation, power generation and chemical processing industries. Valve body can be optionally made of spheroidal cast iron, cast steel and austenitic stainless steel according to operating conditions.
Valves series RV/HU 2×2 are designed for regulation of flow and pressure of liquids, gases and vapours without abrasive particles e.g. water, steam, air and other media compatible with material of the valve inner parts. The usage of the valve made of spheroidal cast iron (RV/ HU 212) for steam is limited by the following parametres. The steam must be superheated (its dryness at valve outlet x >= 0,98) and inlet pressure p1 <= 0,4 MPa when differential pressure is of above-critical value and p2 <=1,6 MPa when differential pressure is of under-critical value. In case these two conditions are not kept, it is necessary to use the value made of cast steel (RV/HU 222). To ensure a reliable regulation, the producers recommends to pipe a strainer in front of the valve into pipiline or ensure in any other way that process medium does not contain abrasive particles or impurities.
|01-02.1||LDM valves with electromechanic actuators||GB, RUS|
|01-05.1||LDM valves with Johnson Controls actuators||GB|
|01-08.1||LDM valves with SPA Praha actuators||GB|
|01-08.3||LDM valves with pneumatic actuators Foxboro||GB|