PRE-VENT BR12b High-Performance Control Valve

PRE-VENT BR12b High-Performance Control Valve

APPLICATION

• Used in automatic and remote control installations as flow control elements to adjust flow of liquids, steam and gases. Wide range of materials and design variants makes the valve applicable in most demanding working conditions in power generation, petroleum chemistry, heating, chemical industry, metallurgy and so on. The valve is to be used even under the most difficult operating conditions. Design and production meets the requirements of Quality Management System ISO 9001.

FEATURES 

• Nominal Diameters from DN15 up to DN400
• Nominal Pressure PN10 up to CL2500
• Face-to-Face lenght as per DIN EN 60534-3-1 or ANSI/ISA 75.08
• Temperature range -196°C up to +650°C
• Leakage Class IV and V according to DIN EN 60534-4
• Characteristik: Linear (L); Equal-percentage (P); ON/OFF [quick-opening] (S)
• Rangeability 50:1
• Design with Flange or Welding ends, TA-Luft, Bellows seal bonnet possible
• 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

The various versions (multistage pressure reduction) serve to reduce noise and cavitation, reduce wear through flashing and eliminate chocked flow. 

DESIGN AND TECHNICAL SPECIFICATION

• Diameters: DN15; 20; 25; 40; 50; 80; 100; 150; 200; 250; 300*; 400* (* Special execution on request.)
• Pressure: PN10; 16; 25; 40 as per DIN EN 1092-1:2013 and DIN EN 1092-2:1997 PN63; 100; 160; 250; 320; 400 as per DIN EN 1092-1:2013 ANSI CL150; 300; 600; 900; 1500; 2500 as per 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; CL300 - PN50; CL600 - PN110; CL900 - PN150; CL1500 - PN260 und CL250 - PN420.

NOTE: The control valves of series BR12b are recommended for application under heavy-duty working conditions, with excessive noise, flashing or choked flow. Selection of designs and materials depends on working conditions. It is based on computeraided calculations of flow coefficients , noise level , fluid status, and effectiveness of such actions depends on data submitted by customer. Application of perforated control elements allows noise reduction by approx. 10 dBA regarding execution with contoured plug. Further noise reduction (~ 5 dBA) can be achieved by application of choke cage, which causes reduction in pressure drop between plug and seat. Such design is also recommended in case of choked flow, cavitation and flashing. Customers shall also appreciate possibility of achieving maximum flow ratio for all nominal sizes and control characteristics, and reduction in actuator costs due to application of balanced plugs.

Visit our PRE-VENT product page to find the link to all datasheets (pdf).