RV/HU 2x1

Description

Control valves RV/HU 2x1 are single-seated valves designed for regulation and shut-off of process medium flow. In regard of used actuators, the valves are suitable for regulation at low and medium high differential pressures. Flow characteristics, Kvs values and leakage rates correspond to international standards. Valves with a fail-safe action HU 2x1 have the same design as RV 2x1 with addition of increased seat sealing. Valves are equipped with fail-safe action actuators (valve closes upon power failure).

The control valves series RV/HU 2x1 are with its push down to open execution designed to connection to actuators of the following producers: LDM, Siemens (Landis & Staefa), Johnson Controls, Honeywell and Belimo.

Application

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.

Process media

The valves series RV/HU 2x1 are designed for regulation of the flow and pressure of liquids, gases and vapours such as water, steam, air and other media compatible with body material and with the valve inner parts. The application of valves made of spheroidal cast iron (RV/HU 211) for steam is limited by the following parametres: Steam must be superheated (its dryness x >= 0,98) and inlet pressure p1 <= 0,4 MPa when differential pressure is above-critical or p2 <=1,6 MPa when differential pressure is under-critical. In case these values are exceeded, it is necessary to use valve made of cast steel (RV/HU 221). To ensure reliable regulation, producer recommends to pipe a strainer in front of the valve or ensure in any other way that medium will not contain abrasive particles or impurities.

Catalogue sheets

01-02.8   Valves 200 line with actuators LDM ANT40                    CZ, GB, D, RUS, PL

01-03.1   LDM valves with Siemens actuators (Landis & Staefa)     CZ, GB, D, RUS, PL

01-05.1  LDM valves with Johnson Controls actuators                   CZ, GB, D, PL

01-06.1  LDM valves with Honeywell actuators                             CZ, GB, D, PL

01-07.1  LDM valves with Belimo actuators                                  CZ, GB, D, PL