Design Features
Características construtivas
- Sem espaço morto
- Livre de manutenção – autolubrificada
- Tampa conforme DIN ISO 5211 – facilita a montagem de atuadores
- Fácil acesso para o reajuste do macho, inclusive para válvulas automáticas
- Recomendada para aplicação em vácuo
- Certificação TA-Luft 2002 (Dekra) – baixa emissões fugitivas
- Certificação SIL 3 capable (Exida)
- Firesafe design conforme API 607 ISO 10497 (atmosfera)
- Certificação FDA
Description Pipe Systems in chemical and petrochemical plants are usually purged with flushing fluids such as water, steam, air or nitrogen. After the flushing process a safe depressurizing is necessary. For this purpose AZ developped the type “BMH” with features easy and simple in operation: The special plug form, with positive overlap, allows during the quarter turn to close the flushing fluid supply and then to depressurize the flushing hose automatically. This ensures maximum safety for operators and environment.The valve is conform to TA-Luft.
PT-Diagram
Operating temperatures < -30°C and > 220 °C have to be checked and approved by AZ according to the operating conditions. Besides the P/T value of the sleeve the limitations of the valve bodies also have to be considered. Please refer to the EN 12516-1 resp. ASME B16.34 in order to choose a proper pressure rating (PN/class). The shown values refer to austenitic stainless steel 1.4408 (A351 Gr. CF8M). 1) For operating temperatures below -10°C low temperature / austenitic steels are required. 2) Sleeve: There are different sleeve materials / compounds available.
Materials
Standard body materials • Carbon Steel 1.0619, ASTM A216 WCB • Stainless Steel 1.4408, ASTM A351 CF8M • Stainless Steel 1.4308, ASTM A351 CF8 • Unalloyed stainless steel casting (low Temp.) 1.1138, LCC/LCB/A352 Standard plug materials • Stainless Steel 1.4408, ASTM A351 CF8M • Stainless Steel 1.4308, ASTM A351 CF8 Special materials • Alloy • Monel • Nickel • Zirconium • Titan • Tantal • other materials on request
Sealing Systems
[table id=20 /]Port Forms
Dimensions
on request
Actuation
1 Locking Devices Pilot valve combinations, pad lock eyelets, linear key conception, indexing plunger arrestor. read more […] 2 Plug stem extension Solid construction in stainless steel with T-wrench, Standard extension 100 mm or 150 mm, non standard lengths are available on request read more […] 3 Actuators Actuators for mounting-flange acc. to DIN ISO 5211 read more […] NEW: Pneumatic actuator AIR GEAR for plug valves with high torque =150.000 Nm read more […] 4 Ratched coupling To usw on multiport valves with standard 90° actuator for bigger switchpositions than 90° read more […] 5 Cover extension Solid construction in stainless steel, Standard extension 100 mm or 150 mm high, non standard lengths are available on request . Hexagonal bolts on adjustment ring freely accessible. Note: Don’t use with sealing FSN/FSN-SL and CASN/CASN-SL read more […]