3171 Back Pressure Relief Regulator

The 3171 is a stainless steel back pressure relief regulator designed to handle small to mid-capacity flow rates in sanitary biotechnical process piping systems.

This unit is capable of control ling inlet pressure to a level between 5 and 200 psig (.34 and 13.8 Barg).

Trim Removal: Easily removable trim from regulator while in-line.  Materials Construction: All metallic parts are SST. Unit is cleaned to Cashco Spec. #S-1576.

Surface Finish: Interior of body surface electro polished to #32 micro-inch Ra finish with electro-polished exterior.

Widely applied for processed food production — confectionary, beverages, nutritional supplements and artificial sweeteners.

May also be used in cosmetics production and specialty chemicals. Would be found supporting fermenters, batching tanks, cookers, dryers and other similar equipment.

Size: 1/2″ (DN15)

Operating Temperature: -20 to +400°F (-29° to +205°C)

Inlet Pres sure:240 psig (16.5 Barg) maximum



High Stability: High mass plug allows dampening of high frequency disturbances from inlet or outlet side of regulator.


Used in pharmaceutical industry in production of many health care products for both human and animal consumption.

Contact our Process Equipment Team:

Michael O’Connell- Tel: 021 461 7201

Conor Foley- Tel: 021 461 7206