PSP 12220 Relief Valve, Pilot Operated Spool
The valve opens flow passage from port 1 to 2 only when the pressure applied at 1 exceeds the spring strength and only when the pressure lifts the ball at pilot zone. This way, the internal spool is forced to shift, opening 1 to 2.
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Specifications
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Mechanical
Seal Type N NBR H HNBR Torque 40-45 Nm / 30-33 lb•ft - Max Operating Pressure 250 (3625) bar (psi) Nominal Flow 180 (47.6) l/min (gpm) Leakage (80% setting) 135 cc/min 50°C; 21 cSt Reset Pressure 10% - Weight 0.35 kg / 0.77 lb - Cavity CVS12201 - Regulation Type R With hexagonal allen head. A max = 82.5 [3.2] P Factory pre-set, non-adjustable. A max = 87 [3.4] Setting 180 180 bar Adjustment Range (±10%) (l/min) 07 20-70 bar 14 30-140 bar 21 30-210 bar 25 30-250 bar Environmental
Operating Temperature Range -20°C + 85°C NBR seals max peak +100°C -20°C + 130°C HNBR seals - Accessories
Valve Housing SVH12200 - -
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