PRE-VENT BR33 Rotary Control Valve

PRE-VENT BR33 Rotary Control Valve

APPLICATION

• The range of applications of the rotary plug valve BR33 corresponds to the "standard" control valve, but it can also be used for many special applications. This valve is specifically used to regulate the flow of media containing solids in automated industrial installations. The rotary plug valve is especially useful for the control of flow under conditions with high probability of cavitation and erosion. The BR33 also has high rangeability (200:1), enabling larger control ranges. With the KVs adjustment, integrated into the associated rotary actuator BR99, it is possible to achieve different opening angles of the rotary plug, leading to larger KVs without the need to exchange plug and seat. 

FEATURES 

• Nominal Diameters from DN25 up to DN300
• Nominal Pressure from PN10 up to CL300
• Face-to-Face length as per DIN EN 60534-3-1, 60534-3-2 or ANSI/ISA 75.08
• Temperature range -40°C up to +250°C (optional +450°C)
• Leakage Class IV and VI according to DIN EN 60534-4
• Characteristic: Linear (L); Equal-percentage (P) with positioner
• Rangeability 200:1
• Design with Flange ends or Wafer type (Sandwich), TA-Luft, Bearing seal and Outlet sleeve (upgradeable)
• Design as per Pressure Equipment Directive 2014/68/EU
• Conformity CE and EAC
• Optional certification/confirmation according to ATEX 2014/34/EU, GOST-R (TR), SIL2 (IEC 61508) and AD2000 Merkblatt

DESIGN AND TECHNICAL SPECIFICATION

• Diameters: DN25; 40; 50; 80; 100; 150; 200; 250; 300
• Pressure: PN10; 16; 25; 40 as per DIN EN 1092-1:2013 and DIN EN 1092-2:1999 ANSI CL150; 300 and DIN EN 1759-1:2005
• Flanges as per DIN EN 1759-1:2005 can be assembled with flanges execution per standards ANSI / ASME B16.5 and MSS SP44. They correspond to the standard DIN EN 7005-1:2002 following pressure ranges: CL150 - PN20 and CL300 - PN50.

FEATURES 

• Due to the one-piece housing all occurring pipeline forces are compensated and have no effect on the torque and there are no additional forces on the seat and plug. Flow velocities minimized by the large volume and favorable aerodynamic housing (no deflection). The preferred flow direction (flow to close) has an added anti-wear property. The construction of the bridge construction ensures a free flow and a free of dead space. The double eccentricity of the bridge reduces the drive torque to a minimum, required for the safe closure of the valve. The plug of the BR33 control valve is a simple rotationally symmetrical part, always identical and therefore easily replaceable. By the double eccentric bearing and the required rotation angle of 60° for control, the BR33 has an almost linear inherent characteristic for maximum and reduced KVs.