GRACO 25R647 - Low Shear Fluid Back Pressure Regulator, 300 Max psi, 25 gpm Max flow rate, SST, Mechanical, high wear, sanitary Inlet/Outlet, 300 PSI

Low shear back pressure regulator designed to minimize material waste caused by paint shear and maximize service life with Ultralife ceramic coated parts that withstand high wear. Features best-in-class performance in maintaining pressure constant with a broad range of flow rates, resulting in the lowest amount of cumulated paint shear. Low profile, compact design with backwards compatibility ensures easy installation and replacement.

Graco’s low shear back pressure regulator (BPR) minimizes shear and prevents paint degradation so that manufacturers produce consistent finish quality.

Additional Specifications

• Flow Rate: 25 gpm (95 lpm) max
• Max Working Pressure: 300 PSI (20.7 bar) max
• Material: SST, Acetal and PTFE
• Regulated Pressure: 25-250 PSI (1.7-17 bar)
• Type: Spring operated
• Gauge Included: Yes
• Flow Range: 5-25 gpm, 19-95 lpm
• Regulated Fluid Pressure: 25-250 PSI (.17-1.72 MPa, 1.7-17.2 bar)
• Max Fluid Working Pressure: 300 PSI (2.1 MPa, 21 bar)
• Max Air Working Pressure: 100 PSI (0.7 MPa, 7.0 bar)
• Temperature Range: 0°C to 50°C
• Approvals: CE, Ex h IIB T6 Gb
• Protection Type: constructional safety 'c'
• Torque Requirement: 35-45 ft-lbs (47.5-61 Nm)
• Component Type: Higher Flow Mechanical Spring

Specifications

Features

• Minimizes material waste caused by paint shear
• Maximizes service life with Ultralife ceramic coated parts
• Best-in-class performance maintaining pressure constant
• Broad range of flow rates with lowest cumulated paint shear
• Low profile, compact design
• Backwards compatibility for easy installation and replacement

Applications

• Shear sensitive, high solid materials
• Paint finishing applications
• Coating systems requiring consistent finish quality
• Applications requiring sanitary connections

Compatible Equipment

• Intelligent Paint Kitchen (IPK) systems for energy consumption and paint shear control
• Mechanical (Spring) Operated BPR

Related Parts

• 25R488
• 25R487
• 25R457
• 25T509 - Conversion kit to pneumatic-operated regulator
• 25T508 - Conversion kit for 25R488 to pneumatic-operated
• 25R842 - High-Flo diaphragm repair kit
• 25T507 - Low-Flo diaphragm repair kit

Part of GRACO's Low Shear BPR product family. Works with IPK control systems. Manual 3A7527 contains installation and operation instructions. Air operated and mechanical (spring) type available. Part of back pressure regulator product family with different flow ranges and operating mechanisms. 25R647 is the Higher Flow Mechanical (Spring) component, while 25R488 is the Lower Flow Mechanical (Spring) component. Both are parts of a Mechanical (Spring) Operated BPR assembly. The part has a torque specification of 35-45 ft-lbs and is referenced as item 7 in the assembly diagram.

Reference Manuals

• 345172 (Page 1)
• 3A7527 (Page 2)