Technical data sheet for the Bürkert 2031 forged diaphragm valve, detailing specifications, materials, and ordering information for DN 8-100 sizes.
The Bürkert 2031 is an externally piloted diaphragm valve featuring a pneumatically operated piston actuator and a 2-way valve housing made of forged stainless steel. Designed for high flow capacities and zero dead volume, it is suitable for neutral gases and liquids, including high-purity, sterile, aggressive, or abrasive fluids. The valve body is available with weld end or clamp connections and various surface finishes, including mechanical polished, electro polished, and mirror finished options.
| Valve type | 2/2-way Diaphragm Valve, forged valve body |
|---|---|
| Orifice size | DN 8-100 |
| Body material | Forged stainless steel 316 L/1.4435 |
| Actuator material | PPS |
| Seal material | EPDM, PTFE/EPDM |
| Media temperature (EPDM) | -10 to +130 ºC |
| Pilot pressure | max. 7 bar |
| Control function | A2/2-way, NC by spring return |
The valve body is made of forged stainless steel 316 L/1.4435, and the standard actuator material is PPS.
The valve can handle media temperatures up to +130°C, with brief exposure up to +150°C allowed for steam sterilization.