NPT 1/2” NC Pneumatic 2-Way Angle Seat Valve Stainless Steel – 2000 – 228325

Bürkert 2/2-way pneumatic angle seat valve (type 2000) with NPT 1/2 inch female threaded ports. The valve has a stainless steel housing with FKM sealing and an orifice size of 15 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 130°C (14 to 266°F) at a pressure of -0.9 to 16 bar (-13 to 224 psi). The valve is suitable for vacuum down to -0.9 bar (-13 psi) and has a Kv-value of 4.2 m3/h (Cv-value of 4.9 gpm). The stainless steel housing is durable, suitable for corrosive media and harsh environments. FKM has very good overall chemical resistance. It offers good mechanical properties, resistance to compression set, suitable for high temperatures (not for hot water/steam). Good resistance to oils and solvents such as aliphatic, aromatic and halocarbons, acids, animal and vegetable oils. Not resistant to methanol. 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
• Y-shape design allow for higher flow capacity and Kv value compared to vertical globe valves
• Easily mount a compact Burkert 8697 position feedback and control unit on the actuator (not included)
• Suitable for vacuum down to -0.9 bar (-13 psi)

Cons:

• Flow above seat can cause water hammer when used with liquids. Use flow below seat versions for liquids
• Type 2000 doesn’t have a control cone, so it is not as suited to regulate flow rate as Burkert type 2702 or 2712

Series:

The Bürkert type 2000 2/2-way angle seat 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 : 1/2 inch
Connection type : Inner thread conical (NPT)
Material : Stainless steel
Seal material : FKM (FPM)
Function : Normally closed
Max pressure difference at 20 °C (bar) : 16
Min temperature (°C) : -10
Max temperature (°C) : 130
Kv value [m3/h] : 4.2
Suitable for vacuum : Yes
Min control pressure (bar) : 2.7
Max control pressure (bar) : 10
Approval : Atex Zone 1,Atex Zone 2,Atex Zone 22,IECEx Zone 1,IECEx Zone 21,IECEx Zone 2,IECEx Zone 22
Closing against flow : No
Actuator material : Polyamide (PA)
Actuator version : Classic
Valve construction : Valve complete
Temperature environment min (°C) : -10
Temperature environment max (°C) : 60
Actuator size : 50 mm
Suitable for liquids : No
CIP capable : No
Control air connection material : Stainless steel
Control air connection position : In line direction
Control air connection type : Inner thread cylindrical BSPP-G
Control cone : No
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 : Angle seat valve
SIP capable : No
Valve bore (mm) : 15