Pressure Unloader

Specifications:
• Maximum Pressure: 2,175 PSI
• Max. Volume: 8.0 GPM
• Knob Color: Black
• Adjustable pressure
• Brass valve body
• Max. Fluid Temp.: 194° F.
• Inlet Port: 3/8" MNPT
• Discharge Port: 3/8” MNPT
• Bypass Port: 3/8” FNPT
• Replaces MV520K Unloader
• Weight: 13.7 oz

Specifications:
• Maximum Pressure: 2,900 PSI
• Max. Volume: 8.0 GPM
• Knob Color: Red
• Adjustable pressure
• Brass valve body
• Max. Fluid Temp.: 194° F.
• Inlet Port: 3/8" MNPT
• Discharge Port: 3/8” MNPT
• Bypass Port: 3/8” FNPT
• Replaces MV540K Unloader
• Weight: 13.7 oz

Specifications:
• Maximum Pressure: 3,625 PSI
• Max. Volume: 8.0 GPM
• Knob Color: Red
• Adjustable pressure
• Brass valve body
• Max. Fluid Temp.: 194° F.
• Inlet Port: 3/8" MNPT
• Discharge Port: 3/8” FNPT
• Bypass Port: 3/8” FNPT
• Gauge Port: 1/4” FNPT
• Weight: 13.7 oz

New Design Features:
• Interior Design – more efficient flow and operation
• Dual Locking Nuts – vibration resistant for setting maximum pressures
• New Spring Material – more resistant to fatigue, powder paint resists rusting
• Piston – large diameter, more strength and contact area for shifting alignment
• Discharge Nipple – sealing o-ring has been moved to the lower part of the thread, increases hydro strength and fitting strength
• Shutter Valve – hex design, less contact area for smooth shifting (prevents binding). larger size, longer life and more positive shifting

Featuring:
• Over sized handle – easier adjustment
• Forged valve body – excellent strength
• Two inlet ports
• Two by-pass ports
• Ultra thick inlet and discharge ports - added strength
• Color coded springs and caps – easy valve identification
• All ports are FNPT

Specifications:
• Spring Color: Blue
• Replaces AL606 & AL606X
• Maximum Pressure: 3,650 PSI
• Max. Volume: 8.0 GPM
• Adjustable pressure
• Brass valve body
• Max. Fluid Temp.: 194° F.
• Inlet Ports (2): 3/8" FNPT
• Discharge Ports (1): 3/8” FNPT
• Bypass Ports (2): 3/8” FNPT
• Weight: 29.6 oz

New Design Features:
• Interior Design – more efficient flow and operation
• Dual Locking Nuts – vibration resistant for setting maximum pressures
• New Spring Material – more resistant to fatigue, powder paint resists rusting
• Piston – large diameter, more strength and contact area for shifting alignment
• Discharge Nipple – sealing o-ring has been moved to the lower part of the thread, increases hydro strength and fitting strength
• Shutter Valve – hex design, less contact area for smooth shifting (prevents binding). larger size, longer life and more positive shifting

Featuring:
• Over sized handle – easier adjustment
• Forged valve body – excellent strength
• Two inlet ports
• Two by-pass ports
• Ultra thick inlet and discharge ports - added strength
• Color coded springs and caps – easy valve identification
• All ports are FNPT

Specifications:
• Spring Color: Black:
• Replaces AL607 & AL607X
• Maximum Pressure: 4,495 PSI
• Max. Volume: 8.0 GPM
• Adjustable pressure
• Brass valve body
• Max. Fluid Temp.: 194° F.
• Inlet Ports (2): 3/8" FNPT
• Discharge Ports (1): 3/8” FNPT
• Bypass Ports (2): 3/8” FNPT
• Weight: 29.6 oz

New Design Features:
• Interior Design – more efficient flow and operation
• Dual Locking Nuts – vibration resistant for setting maximum pressures
• New Spring Material – more resistant to fatigue, powder paint resists rusting
• Piston – large diameter, more strength and contact area for shifting alignment
• Discharge Nipple – sealing o-ring has been moved to the lower part of the thread, increases hydro strength and fitting strength
• Shutter Valve – hex design, less contact area for smooth shifting (prevents binding). larger size, longer life and more positive shifting

Featuring:
• Built-In easy start valve relieves back pressure during engine start up
• Over sized handle – easier adjustment
• Forged valve body – excellent strength
• Two inlet ports
• Two by-pass ports
• Ultra thick inlet and discharge ports - added strength
• Color coded springs and caps – easy valve identification
• All ports are FNPT

Specifications:
• Spring Color: Black:
• Replaces AL606EZ, AL606XEZ, AL607EZ & AL607XEZ
• Maximum Pressure: 4,495 PSI
• Max. Volume: 8.0 GPM
• Adjustable pressure
• Brass valve body
• Max. Fluid Temp.: 194° F.
• Inlet Port (1): 3/8" FNPT
• Discharge Port (1): 3/8” FNPT
• Bypass Ports (2): 3/8” FNPT
• Weight: 29.6 oz

Newly introduced Mecline VRT3 Unloader is an updated version of the Arrow Line VRT unloader with a stronger valve body with less porosity. The pressure adjustment handle was redesigned for easier operation at all pressure levels.

New Design Features:
• Interior Design – more efficient flow and operation
• Dual Locking Nuts – vibration resistant for setting maximum pressures
• New Spring Material – more resistant to fatigue, powder paint resists rusting
• Piston – large diameter, more strength and contact area for shifting alignment
• Discharge Nipple – sealing o-ring has been moved to the lower part of the thread, increases hydro strength and fitting strength
• Shutter Valve – hex design, less contact area for smooth shifting (prevents binding). larger size, longer life and more positive shifting

Featuring:
• Over sized handle – easier adjustment
• Forged valve body – excellent strength
• Two inlet ports
• Two by-pass ports
• Ultra thick inlet and discharge ports - added strength
• Color coded springs and caps – easy valve identification
• All ports are FNPT

Specifications:
• Spring Color: Yellow
• Maximum Pressure: 2,320 PSI
• Rated Flow: 10.5 GPM
• Adjustable pressure
• Brass valve body
• Max. Fluid Temp.: 194° F.
• Inlet Ports (2): 3/8" FNPT
• Discharge Ports (1): 3/8” FNPT
• Bypass Ports (2): 3/8” FNPT
• Weight: 27.9 oz

Specifications:
• Maximum Pressure: 3,625 PSI
• Max. Volume: 8.0 GPM
• Knob Color: Red
• Adjustable pressure
• Brass valve body
• Max. Fluid Temp.: 194° F.
• Inlet Port: 3/8" MNPT
• Discharge Port: 3/8” MNPT
• Bypass Port: 3/8” FNPT
• Gauge Port: 1/4” FNPT
• Replaces MV560K Unloader
• Weight: 13.7 oz

New Design Features:
• Interior Design – more efficient flow and operation
• Dual Locking Nuts – vibration resistant for setting maximum pressures
• New Spring Material – more resistant to fatigue, powder paint resists rusting
• Piston – large diameter, more strength and contact area for shifting alignment
• Discharge Nipple – sealing o-ring has been moved to the lower part of the thread, increases hydro strength and fitting strength
• Shutter Valve – hex design, less contact area for smooth shifting (prevents binding). larger size, longer life and more positive shifting

Featuring:
• Forged valve body – excellent strength
• Two inlet ports
• Two by-pass ports
• Ultra thick inlet and discharge ports - added strength
• Color coded spring – easy valve identification
• All ports are FNPT

Specifications:
• Spring Color: Black
• Does not included black adjustment knob
• Replaces AL607XA
• Maximum Pressure: 4,495 PSI
• Max. Volume: 8.0 GPM
• Adjustable pressure
• Brass valve body
• Max. Fluid Temp.: 194° F.
• Inlet Ports (2): 3/8" FNPT
• Discharge Ports (1): 3/8” FNPT
• Bypass Ports (2): 3/8” FNPT
• Weight: 27.9 oz

New Design Features:
• Interior Design – more efficient flow and operation
• Dual Locking Nuts – vibration resistant for setting maximum pressures
• New Spring Material – more resistant to fatigue, powder paint resists rusting
• Piston – large diameter, more strength and contact area for shifting alignment
• Discharge Nipple – sealing o-ring has been moved to the lower part of the thread, increases hydro strength and fitting strength
• Shutter Valve – hex design, less contact area for smooth shifting (prevents binding). larger size, longer life and more positive shifting

Featuring:
• Forged valve body – excellent strength
• Two inlet ports
• Two by-pass ports
• Ultra thick inlet and discharge ports - added strength
• Color coded spring – easy valve identification
• All ports are FNPT

Specifications:
• Spring Color: Blue
• Does not included black adjustment knob
• Replaces AL606XA
• Maximum Pressure: 3,650 PSI
• Max. Volume: 8.0 GPM
• Adjustable pressure
• Brass valve body
• Max. Fluid Temp.: 194° F.
• Inlet Ports (2): 3/8" FNPT
• Discharge Ports (1): 3/8” FNPT
• Bypass Ports (2): 3/8” FNPT
• Weight: 27.9 oz

PA Pulsar 4 Unloader Valve 4,050 PSI with built-in Easy Start. Built-In easy start valve relieves back pressure during engine start up

Features
• NEW improved design!
• Reduced pressure loss
• Makes for easier gun operation
• Extremely reliable
• Easy maintenance
• Includes knob fitted with locknut for easy pressure adjustment
• Facilitates water discharge in pressure during start-up
• Reduces energy required for start-up

Specifications Sheet

Specifications:
• Rated Pressure: 4,050 PSI
• Permissible Pressure: 4,500 PSI
• Rated Temperature: 195° F
• Rated Flow Rate: 10.5 GPM
• Material: Steel and brass
• Inlet Port (1): 3/8" NPT-F
• Outlet Port (1): 3/8" NPT-F
• Bypass Ports (2): 3/8" NPT-F
• NOTE: Unloader Must Be Installed Vertically For Proper Operation
• Replaces Pulsar 280 #60.0006.90
• GP #: PULSAR4KHPEZ
• Weight: 26.0 oz

• Trapped Pressure Unloader
• General # YVB3KA, Series 51 & 60 Pumps
• Maximum Pressure: 3,200 PSI
• Max. Volume: 6.5 GPM
• Adjustable pressure
• Brass body
• Max. Fluid Temp.: 195 degrees F.
• Inlet Ports (1): 3/8" MPT
• Discharge Ports (1): 3/8” MPT
• Bypass Ports (1): 3/8” FPT
• 14.7 OZ. Weight

Features:
• Adjustable valve allows limit setting on both maximum pressure and minimum pressure
• Straight flow-through design minimizes pressure loss through valve
• Working components constructed of high-grade stainless steel. PTFE and Viton seals for maximum heat and chemical resistance
• Internal bypass valve can be easily accessed and repaired without removing unloader from unit

Specifications:
• Maximum Pressure: 3,625 PSI
• Minimum Pressure: 500 PSI
• Flow Rate: 8 GPM
• Max Temperature: 176° F
• Inlet Port: 3/8" FNPT
• Outlet Port: 3/8” FNPT
• Bypass Port: 1/4” FNPT
• Weight: 1.34 lbs

Features:
• Only tamper-resistant operator adjustable valve in the industry which allows limit setting on both maximum pressure and minimum pressure
• Working components constructed of high-grade stainless steel. PTFE and Viton seals for maximum heat and chemical resistance
• Internal bypass valve can be easily accessed and repaired without removing unloader from unit

Specifications:
• Maximum Pressure: 3,625 PSI
• Minimum Pressure: 500 PSI
• Flow Rate: 8 GPM
• Max Temperature: 176° F
• Inlet Port: 3/8" FNPT
• Outlet Port: 3/8” FNPT
• Bypass Port: 1/4” FNPT
• Weight: 1.34 lbs

Features:
• Built-in exclusive down stream (venturi-type) injector with built in orifice provides more precise siphon rate.
• Adjustable valve allows limit setting on both maximum pressure and minimum pressure
• Straight flow-through design minimizes pressure loss through valve
• Working components constructed of high-grade stainless steel. PTFE and Viton seals for maximum heat and chemical resistance
• Internal bypass valve can be easily accessed and repaired without removing unloader from unit

Specifications:
• Maximum Pressure: 3,625 PSI
• Minimum Pressure: 500 PSI
• Flow Rate: 8 GPM
• Orifice: 1.8 mm
• Injector Flow Rate: 1.5 - 2.25 GPM
• Max Temperature: 176° F
• Inlet Port: 3/8" FNPT
• Outlet Port: 3/8” FNPT
• Bypass Port: 1/4” FNPT
• Weight: 1.38 lbs

Features:
• Built-in exclusive down stream (venturi-type) injector with built in orifice provides more precise siphon rate.
• Adjustable valve allows limit setting on both maximum pressure and minimum pressure
• Straight flow-through design minimizes pressure loss through valve
• Working components constructed of high-grade stainless steel. PTFE and Viton seals for maximum heat and chemical resistance
• Internal bypass valve can be easily accessed and repaired without removing unloader from unit

Specifications:
• Maximum Pressure: 3,625 PSI
• Minimum Pressure: 500 PSI
• Flow Rate: 8 GPM
• Orifice: 2.1 mm
• Injector Flow Rate: 2.25 – 3.35 GPM
• Max Temperature: 176° F
• Inlet Port: 3/8" FNPT
• Outlet Port: 3/8” FNPT
• Bypass Port: 1/4” FNPT
• Weight: 1.38 lbs

Features:
• Built-in exclusive down stream (venturi-type) injector with built in orifice provides more precise siphon rate.
• Adjustable valve allows limit setting on both maximum pressure and minimum pressure
• Straight flow-through design minimizes pressure loss through valve
• Working components constructed of high-grade stainless steel. PTFE and Viton seals for maximum heat and chemical resistance
• Internal bypass valve can be easily accessed and repaired without removing unloader from unit

Specifications:
• Maximum Pressure: 3,625 PSI
• Minimum Pressure: 500 PSI
• Flow Rate: 8 GPM
• Orifice: 2.4 mm
• Injector Flow Rate: 3.35 – 5.0 GPM
• Max Temperature: 176° F
• Inlet Port: 3/8" FNPT
• Outlet Port: 3/8” FNPT
• Bypass Port: 1/4” FNPT
• Weight: 1.38 lbs

Features:
• Adjustable valve allows limit setting on both maximum pressure and minimum pressure
• Straight flow-through design minimizes pressure loss through valve
• Working components constructed of high-grade stainless steel. PTFE and Viton seals for maximum heat and chemical resistance
• Internal bypass valve can be easily accessed and repaired without removing unloader from unit

Specifications:
• Maximum Pressure: 1,000 PSI
• Minimum Pressure: 200 PSI
• Flow Rate: 8 GPM
• Max Temperature: 176° F
• Inlet Port: 3/8" FNPT
• Outlet Port: 3/8” FNPT
• Bypass Port: 1/4” FNPT
• Weight: 1.34 lbs

• Trapped Pressure Unloader
• General # YVB7K
• Maximum Pressure: 3,600 PSI
• Max. Volume: 7.8 GPM
• Adjustable pressure
• Brass body
• Max. Fluid Temp.: 200 degrees F.
• Inlet Ports (1): 3/8" MPT
• Discharge Ports (1): 3/8” FPT
• Bypass Ports (1): 3/8” FPT
• 19.7 OZ. Weight

Features:
• Adjustable valve allows limit setting on both maximum pressure and minimum pressure
• Straight flow-through design minimizes pressure loss through valve
• Working components constructed of high-grade stainless steel. PTFE and Viton seals for maximum heat and chemical resistance
• Internal bypass valve can be easily accessed and repaired without removing unloader from unit
• Multi gun operational

Specifications:
• Maximum Pressure: 4,060 PSI
• Minimum Pressure: 500 PSI
• Flow Rate: 8 GPM
• Max Temperature: 176° F
• Inlet Port: 3/8" FNPT
• Outlet Port: 3/8” FNPT
• Bypass Port: 1/4” FNPT
• Weight: 1.80 lbs