Operation When the coil o is energized, the armature assembly u is attracted into the core of the core assembly y and the pilot valve A opens. Then the pressure in the pressure action chamber B falls to open the main valve C. When the coil o is not energized, the pilot valve A is closed and the pressure in the pressure action chamber B rises and the main valve C closes. Operation When the coil u is energized, the opened pilot A closes, the pressure in pressure action chamber B rises and the main valve C closes. When coil u is not energized, the closed pilot valve A opens, the pressure in pressure action chamber B drops and the main valve C opens. VXP2130 VXP2140/2150/2260 VXP2142/2152/2262 VXP2272/2382/2392 VXP2270/2380/2390 Construction/Principle Parts Material Normally Closed (N.C.) Normally Open (N.O.) No. 1 2 3 4 5 6 7 8 9 Description Size 10A to 25A 10A to 25A 32A to 50A 32A to 50A 10A to 25A 10A to 25A 32A to 50A Body Bonnet Disk assembly O-ring Valve spring Core assembly Coil assembly Armature assembly Return spring 32A to 50A Standard Brass (C37) CAC408 Brass (C37) CAC408 NBR Option Stainless steel . Stainless steel . FKM/EPDM Stainless steel, FKM Stainless steel, EPDM Stainless steel, Brass (C37) FKM/EPDM . . . . . . Stainless steel, Silver . Stainless steel, FKM Stainless steel, EPDM . Class H molded Stainless steel, Brass (C37), NBR Stainless steel Stainless steel, Copper Stainless steel, NBR Stainless steel Class B molded Material No. 1 2 3 4 5 6 7 Description Size 15A to 25A 15A to 25A 32A to 50A . 32A to 50A . 15A to 25A 15A to 25A 32A to 50A . Body Bonnet Disk assembly O-ring Valve spring Core assembly Coil assembly 32A to 50A Standard Brass (C37) CAC408 Brass (C37) CAC408 NBR Option Stainless steel . Stainless steel . FKM/EPDM Stainless steel, FKM Stainless steel, EPDM Stainless steel, Brass (C37) FKM/EPDM . Stainless steel, Silver FKM/EPDM, PTFE Stainless steel, Copper, FKM/EPDM, PTFE Class H molded Stainless steel, Brass (C37), NBR Stainless steel Stainless steel, Copper, NBR POM PTFE Class B molded Material Pilot Operated 2 Port Solenoid Valve Series VXP21/22/23 For Air, Gas, Steam, Water and Oil 249 VX2 VXK VXD VXZ VXS VXE VXP VXR VXH VXF2 VX3 VXA A