Valves Relief Pressure UF4 / UFR4 SPX FLOW

Name: Valves Relief Pressure UF4 / UFR4 SPX FLOW
Brand: SPX FLOW
SKU: 8697108118-2403
Availability: InStock

Valves & Piping

SPX FLOW

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Description

Pressure relief valves (UF4) and with tapered stem (UFR4). Function: Overpressure protection. Housing combinations: Shut-off, E-type manifold. Port connections: Buttweld (W) or 00 upgrade insert. Port sizes: DN25–DN100 and tube T10–T40. Actuator: Seat lift (SL) default. Control units: CU4, CU4Plus, IECEx CU (ATEX Zone 1), CU4 certified ATEX Zone 2, CU4Plus certified. Solenoids: 11 (1 solenoid). Communication: direct connect 24V DC, 110V AC, AS-i, IO-link. Actuator connectors: 6 mm air fittings, electrical: cable gland, 4-pin M12, 5-pin M12, 8-pin M12. Environmental: ATEX Zone 1, Zone 2. Seat type: TR – elastomeric profile seal. Seal materials: EPDM, FPM, HNBR. Surface finish: 10 – 1.6 μm, 11 – 0.8 μm with electro-polish. Options: A1S 3.1 cert, A3 hazardous, B1 3-A. Pressure relief ranges: Multiple options per valve size and actuator (see tables on page 22). Minimum response pressure >0 bar depending on mounting.

Possible Applications

The UF4 and UFR4 series are engineered for critical overpressure protection in hygienic processing lines where maintaining strict sanitary standards is paramount. These valves are primarily deployed in dairy, beverage, and pharmaceutical manufacturing systems to safeguard sensitive equipment like heat exchangers, homogenizers, and storage tanks from pressure spikes during CIP cycles or process upsets. The integration of seat lift functionality allows for effective cleaning of the valve seat area without interrupting the main process flow, ensuring compliance with rigorous sterility requirements. Their robust design and flexible communication options make them ideal for automated skid-mounted systems where precise pressure regulation and remote monitoring are essential for operational safety and product integrity.

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