Bürkert 2/2-way pneumatic globe valve (type 2012) with DN 80 flanged ports. The valve has a stainless steel housing with PTFE sealing and an orifice size of 80 mm. The control function of the valve is normally closed (NC), which means the valve opens when air is applied. Suitable for a media temperatures from -10 to 185°C (14 to 365°F) at a pressure of to 10 bar (0 to 140 psi). The valve has a Kv-value of 110 m3/h (Cv-value of 127.2 gpm). The stainless steel housing is durable, suitable for corrosive media and harsh environments. The PTFE sealing is resistant to almost all chemicals. Consult our chemical resistance chart to verify compatibility of housing and seals with the medium. This valve is ATEX and IECEx certified, zones 21/1 and 22/2.
Pros:
- ATEX and IECEx certified, zones 21/1 and 22/2
- High flow capacity and used for demanding applications
- Easily mount a compact Burkert 8697 position feedback and control unit on the actuator (not included)
- Versions that close against the flow direction are suited for liquids, steam and gasses
Series:
The Bürkert type 2012 2/2-way globe valve is a pneumatically actuated on/off valve. The CLASSIC pneumatically operated piston actuator is available in PA, or PPS for higher ambient temperatures. The valve body has been optimized for excellent flow properties and is equipped with a self-adjusting packing gland for added tightness and long-term reliability. These valves are suitable for high viscosity media of up to 600 mm2/s. This valve can be controlled through the use of a pilot valve or through central automation with a valve island. The valve can be fitted with accessories like electrical position feedback, manual override or stroke limitation.
Specifications
Connection size : DN 80
Connection type : Flange
Material : Stainless steel
Seal material : Teflon (PTFE)
Function : Normally closed
Max pressure difference at 20 °C (bar) : 10
Min temperature (°C) : -10
Max temperature (°C) : 185
Kv value [m3/h] : 110
Min control pressure (bar) : 4.5
Max control pressure (bar) : 6
Approval : Atex Zone 1,Atex Zone 21,Atex Zone 2,Atex Zone 22,IECEx Zone 1,IECEx Zone 21,IECEx Zone 2,IECEx Zone 22
Closing against flow : Yes
Actuator material : Polyamide (PA)
Actuator version : Classic
Valve construction : Valve complete
Temperature environment min (°C) : -10
Temperature environment max (°C) : 50
Actuator size : 175 mm
Suitable for liquids : Yes
CIP capable : Yes
Control air connection material : Stainless steel
Control air connection position : In line direction
Control air connection type : Inner thread cylindrical BSPP-G
Explosion safety code : ATEX – Ex h IIC T4 Gb,ATEX – Ex h IIIC T135°C Db,IECEx – II 2 D Ex h IIIC T135°C Db,IECEx – II 2 G Ex h IIC T4 Gb
Main valve operating principle : Globe valve
SIP capable : Yes
Valve bore (mm) : 80
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