Diaphragm seal with threaded connection 311

for pressure gaugesfor wastewater treatmentchemical process

The Ashcroft® 311 and 312 midi-diaphragm seals are fitted in confined areas to protect measuring instruments. Used to ensure process compatibility, they are also applied when process media exhibit pulsation. Ideal for limited space installations. Key Features: Compact and lightweight design Choice of diaphragm and lower housing materials All-welded construction Volumetric displacement allows attachment to: Transducers and Switches Applications: Process Market: Oil and Gas Refineries Chemical and Petrochemical Water and Wastewater Process Applications: Oil and Gas Fracking NACE Compliant Processes (Sour Gas Separation) Biogas and Biodiesel Process Connection Size 311: ¼ to 1 NPT Male or Female 312: ¼ or ½ NPT Female Instrument Connection ¼ or ½ NPT Female Added Tolerance ±0.5% typical Connection Style 311: All-Welded 312: All-Welded with flushing connection