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PRESSURE ACTUATED UNLOADERS

Available in a variety of styles, sizes and types

PRESSSURE ACTUATED UNLOADERS
	VB3K PRESSURE UNLOADER 6.5 GPM maximum 195°F maximum 3/8"fpt bypass 3/8"mpt outlet 3650 PSI maximum Model: YVB3K - 3/8" FPT Part# 4131 Our Price: $54.84 Qty:
	VB130KTT TRAPPED PRESSURE For General TT pumps. Replaces Shurset unloaders 1/4" FPT inlet 3/8" MPT outlet 3/8" FPT Bypass Part# 6017 Our Price: $58.54 Qty:
	VR35 TRAPPED PRESSURE 9 GPM maximum 5100 PSI maximum 195° maximum 3/8" FPT inlet 3/8" MPT outlet 3/8" F Bypass Port Part# 6051 List Price:$180.24 You save 25% !!! Your Price: $135.18 Qty:
	7500S 2SF CAT UNLOADER 1-6GPM,100-2000 PSI, 3/8 MPT I/O, 3/8 FPT BYPASS Features Regulating unloader to provide system pressure regulation and pump protection Standard on Cat 2SF direct drive pumps For maximum suction capability, unloader should be mounted on discharge of manifold Specifications DO NOT EXCEED 6 MINUTES IN BY-PASS OPERATION. Excessive temperatures will cause premature wear or damage to the pump and VOID the warranty Pressure rating: 100 to 1500 PSI Flow rating: 0.5 to 6.0 GPM Inlet port: 3/8" MPT Discharge port: M18 x 1.0 By-pass port: 3/8" MPT Dimensions: 3.0" x 1.0" x 4.25" Weight: 14 oz Part# 2799 Our Price: $113.74 Qty: Kit for 7500 Part# 4482 Sorry This Item is No Longer Available
	7600S 4SF CAT UNLOADER 2-5GPM, 700-3000 PSI, 3/8 MPT I/O, 3/8 FTP BYPASS Features Regulating unloader standard on all 4SF direct drive pumps For maximum suction capability, unloader should be mounted on discharge manifold, opposite from pump inlet port By-pass may drain to the ground, to a reservoir, or connect to the special 1/4" by pass port on the underside of the inlet manifold Specifications Do not exceed 6 minutes in by-pass operation.Excessive temperature will cause premature wear and damage to the pump and void the warranty Pressure rating: 700 to 3000 PSI Flow rating: 2.0 to 5.0 GPM Inlet Port: 3/8" MPT Discharge port: 3/8" MPT Bypass port: 3/8" MPT Dimensions: 3.25" x 1.0" x4.81" Weight: 21.4 oz Kit for 7600S Part# 4483 Sorry This Item is No Longer Available
	PRESSURE REGULATOR This pressure regulator is designed for systems with single or multiple pumps, solenoid valves, nozzles, and standard or weep guns. This regulator holds established system pressure in the discharge when the trigger gun is closed or the nozzle is clogged, bypassing the unrequired flow. It returns to established system pressure without delay upon squeezing the trigger gun. Operation below the minimum flow of the regulator causes the regulator to cycle. Operation beyond the rated unloader flow causes premature valve wear, regulator cycling, and prevents attaining the desired system pressure. A minimum bypass flow of 5% of the regulator rated flow capacity is required for proper performance Green spring Pressure range: 150 to 1450 PSI Flow range: 2.5 to 7.0 GPM Maximum temperature: 160 F. Inlet port: 3/8" FPT Outlet port: 3/8" FPT Bypass port: 3/8" FPT Dimensions: 3.1" x 2.0" x 6.4" Weight: 1 lb. Part# 2804 Our Price: $81.72 Qty:
	TRAPPED PRESSURE This pressure regulator is designed for systems with single or multiple pumps, solenoid valves, nozzles, and standard or weep guns. This regulator holds established system pressure in the discharge when the trigger gun is closed or the nozzle is clogged, bypassing the unrequired flow. It returns to established system pressure without delay upon squeezing the trigger gun. Operation below the minimum flow of the regulator causes the regulator to cycle. Operation beyond the rated unloader flow causes premature valve wear, regulator cycling, and prevents attaining the desired system pressure A minimum by pass flow of 5% of the unloader rated flow capacity is required for proper unloader performance Flow rating: 1 to 21 GPM Maximum temperature: 180 F Inlet port: 1/2" FPT Outlet port: 1/2" FPT Bypass port: 1/2" FPT Dimensions: 8.75" x 3.75" x 1.75" Weight: 2.9 lbs White Spring - 2200 PSI Part# 2801 List Price:$198.78 You save 25% !!! Your Price: $149.09 Qty: Blue Spring - 4000 PSI Part# 2802 List Price:$215.34 You save 25% !!! Your Price: $161.51 Qty:
	TRAPPED PRESSURE This pressure regulator is designed for systems with single or multiple pumps, solenoid valves, nozzles, and standard or weep guns. This regulator holds established system pressure in the discharge when the trigger gun is closed or the nozzle is clogged, bypassing the unrequired flow. It returns to established system pressure without delay upon squeezing the trigger gun. Operation below the minimum flow of the regulator causes the regulator to cycle. Operation beyond the rated unloader flow causes premature valve wear, regulator cycling, and prevents attaining the desired system pressure A minimum by-pass flow of 5% of the unloader rated flow capacity is required for proper performance Blue Spring PSI: 4000 Flow range: 1 to 21 GPM Maximum temperature: 180 F Inlet: 1/2" FPT Outlet: 1/2" FPT Bypass: 1/2" FPT Dimensions: 8.75" x 3.75" x 1.75" Weight: 2.9 lbs Part# 2802 List Price:$215.34 You save 25% !!! Your Price: $161.51 Qty:
	22760 UNLOADER Pressure actuated unloader. Stainless Steel components. Completely rebuildable Pressure Range: 150 PSI to 3000 PSI Flow Range: 1.3 GPM to 8 GPM Maximum Temperature: 160 F Inlet Port: 3/8" FPT Outlet Port: 3/8" FPT Bypass Port: 1/4" FPT Repair Kit: Barens order #3503 Weight: 2.1 lbs Part# 2168 Our Price: $94.08 Qty:
No Picture Available	09108 Repair Kit Part# 3503 Our Price: $7.70 Qty:
	HEAVY DUTY UNLOADERS Pressure actuated unloader. Ideal for multiple gun situation. Side port connections ideal for pressure switch, gauge or pop-off installation. Corrosion and erosion resistant design Maximum Flow: 13 GPM Maximum Temperature: 160 F Inlet: 1/2" FPT Outlet: 1/2" FPT Bypass: 1/2" FPT Repair Kits: Barens Order #3527 & #3740 Weight: 2.75 lbs Red Spring - 2400 PSI Part# 1630 List Price:$173.40 You save 25% !!! Your Price: $130.05 Qty: Orange Spring - 3000 PSI Part# 1631 List Price:$173.40 You save 25% !!! Your Price: $130.05 Qty:
No Picture Available	012099 Standard Repair Kit Part# 3527 Our Price: $19.66 Qty:
No Picture Available	Repair Kit B Part# 3740 Our Price: $23.04 Qty:
	UNLOADERS Dependable, cost effective unloaders with pressure ratings to 4650 PSI Adjustable pressure activated 7.8 GPM maximum 194° maximum Dual 3/8" inlet ports Dual 3/8" bypass ports 1/4"F gauge port Model: AL605Y - Yellow Spring - 1500 PSI Part# 3505 Our Price: $74.68 Qty: Model: AL605 - Red Spring - 2900 PSI Part# 3506 Our Price: $74.68 Qty: Model: AL606 - Blue Spring - 3650 PSI Part# 1775 Our Price: $74.68 Qty: Model: AL606EZ - Blue Spring - 3650 PSI Built-in Easy Start Valve Part# 6786 Our Price: $76.58 Qty: Model: AL607 - Black Spring - 4000 PSI Part# 4635 Our Price: $74.68 Qty: Model: AL607EZ - Black Spring - 4000 PSI Part# 6787 Our Price: $77.12 Qty: Model: AL609EZ - Purple Spring - 5000 PSI Part# 6817 Our Price: $96.36 Qty:
No Picture Available	Repair Kit for all above models (AL605Y, AL605, AL606, AL607) Part# 2846 Our Price: $29.44 Qty:
No Picture Available	Repair Kit for AL609EZ Part# 6371 Our Price: $30.22 Qty:
	AL686 W/PRESSURE SWITCH AL606 unloader with a 15 amp pressure switch in the bypass port. Blue spring with adjusting knob Maximum Flow: 7.8 GPM Maximum Pressure: 3650 PSI Maximum Temperature: 190 F Inlet: 3/8" FPT Outlet: 3/8" FPT Bypass: Dual 3/8" FPT Part# 5882 Our Price: $109.96 Qty: Model: AL687, Black Spring, 4200 PSI Part# 6818 Our Price: $112.66 Qty:
	HM REGULATING Ideal for use in systems which incorporate a gasoline engine. Eliminates back pressure in system when pulling a manual start engine. Features brass and stainless steel construction, and a plastic adjustable pressure control knob Built in easy start valve Must be mounted in vertical position.Optional spring must be used if mounted in any other position 10.8 maximum volume 3000 PSI maximum discharge pressure 165 F. maximum Inlet: 3/8" FPT Outlet: 1/4" FPT and 3/8" MPT Bypass: Dual 3/8" FPT Dimensions: 2.75" x 3.75" x 6.50" Weight: 2.5 lb Part# 2169 Our Price: $112.66 Qty:
	J.E. ADAMS UNLOADERS Golden Eagle pressure regulator and unloader. MADE IN THE USA. Brass forged body, long life, non corrosive solid stainless steel, plunger, ball and rod. Reinforced control knob for easy, wrench free adjustments Maximum Flow: 8 GPM Maximum Temperature: 200 F Inlet Port: Dual 3/8" FPT Outlet Port: 3/8" FPT Bypass Port: Dual 1/4" FPT Repair Kit: Barens order #3341 Weight: 2 lb Model: 7100 Brown - 800-2000 PSI Part# 1727 Sorry This Item is No Longer Available Model: 7300 Red - 1500-3000 PSI Part# 1728 Sorry This Item is No Longer Available
No Picture Available	Repair Kit Part# 3341 Sorry This Item is No Longer Available
	PRESSURE ACTUATED UNLOADERS - MODEL MV520 Maximum Pressure: 2000 PSI Maximum flow: 8 GPM Temperature: 250 F Inlet: 3/8" MPT Outlet: 3/8" MPT Bypass: 3/8" FPT Weight: 14 oz Part# 4289 Our Price: $40.10 Qty:
	PRESSURE ACTUATED UNLOADERS - MODEL MV540 Maximum Pressure: 2500 PSI Maximum flow: 8 GPM Temperature: 250 F Inlet: 3/8" MPT Outlet: 3/8" MPT Bypass: 3/8" FPT Weight: 20 oz Part# 1650 Our Price: $43.80 Qty:
	PRESSURE ACTUATED UNLOADERS - MODEL MV550 Maximum Pressure: 3600 PSI Maximum flow: 8 GPM Temperature: 250 F Inlet: 3/8" MPT Outlet: 3/8" MPT Bypass: 3/8" FPT Weight: 14 oz Part# 3145 Our Price: $63.10 Qty: Repair Kit Part# 3269 Our Price: $23.56 Qty:
	PRESSURE ACTUATED UNLOADERS - MODEL MV580 UNLOADER WITH KNOB Maximum Pressure: 3600 PSI Maximum flow: 8 GPM Temperature: 250 F Bypass: 3/8" FPT Part# 6172 Our Price: $56.64 Qty:
No Picture Available	Repair Kit Part# 3269 Our Price: $23.56 Qty:
	PULSAR UNLOADER Trapped presure type unloader. Model with EZ start valve is ideal for systems utilizing gasoline engines to prevent back pressure on recoil manual starts. Maximum Volume: 7.8 GPM Maximum Discharge Pressure: 4000 PSI Inlet Port Size: 3/8" FPT Discharge Port Size: 3/8" FPT Bypass Port Size: 3/8" FPT Weight: 1.6 lbs. Part# 5814 Our Price: $64.40 Qty:
	PULSAR EZ UNLOADER Trapped presure type unloader. Model with EZ start valve is ideal for systems utilizing gasoline engines to prevent back pressure on recoil manual starts. NOTE: For proper operation of the PULSAR3KHPEZ unloader, it must be mounted in the VERTICAL position. Maximum Volume: 7.8 GPM Maximum Discharge Pressure: 4000 PSI Inlet Port Size: 3/8" FPT Discharge Port Size: 3/8" FPT Bypass Port Size: 3/8" FPT Weight: 1.6 lbs. Part# 5813 Our Price: $65.72 Qty:
No Picture Available	Repair Kit Part# 4237 Our Price: $21.38 Qty:
	ST-261 UNLOADER Regulating unloader valve. Can also be panel mounted. Tamper resistant operator adjustment valve allows limit setting on both maximum and minimum pressure. Ideal for steam combination operations. Straight flow-through design minimizes pressure loss through valve. Working components constructed of high grade stainless steel, teflon, and Viton seals for maximum heat/chemical resistance. Internal bypass valve can be easily accessed and repaired without removing unloader from unit. True to Suttner design tradition, valve is cartridge type and installed in minutes.Pressure adjustment knob can be removed if desired. Pressure: Up to 3625 PSI Flow rate: Up to 8 GPM Temperature: Up to 176 F Inlet: 3/8" FPT Outlet: 3/8" FPT Bypass: 1/4" FPT Gauge Port: 1/4" FPT Weight: 22.5 oz Part# 1396 Our Price: $59.02 Qty: ST-261 Tamper Proof, 3600 PSI, 8.0 GPM Part# 6824 Our Price: $60.32 Qty:
No Picture Available	Panel Mount Nut Part# 5374 Our Price: $7.78 Qty:
No Picture Available	200261528 kit "A" Repair Kit contains: 05000050 o-ring; 040000440 valve part; 060000310 spring; and 020001290 valve housing. Part# 5661 Our Price: $4.28 Qty:
No Picture Available	200060720 kit "F" Repair Kit contains: 060000120 spring; 060000110 stainless steel ball; 050000070 o-ring; & 010000200 hose barb. Part# 5660 Our Price: $5.56 Qty:
	ST-261 W/INJECTOR Features: Regulating unloader valve Tamper resistant operator adjustable valve which allows limit setting on both maximum and minimum pressure Ideal for steam combination applications Straight flow-through design minimizes pressure loss through valve Working components constructed of high grade stainless steel, teflon, and Viton seals for maximum heat/chemical resistance Internal bypass valve can be easily accessed and repaired without removing unloader from unit True to Suttner design tradition, valve is cartridge type and installed in minutes Pressure adjustment knob can be removed if desired Specifications Downstream injection at 10:1 rate Low pressure limit setting eliminates need of additional metering devices A downstream chemical injector relies on pressure loss through a restrictive orifice, which is built in on the ST-261 restriction AFTER the orifice must be minimized in order for injection to occur. Therefore, this system must incorporate a large orifice spray nozzle which reduces such restriction. It is generally recommended the usage of a nozzle with a minimum orice size of 30.0. Samller nozzles may be used, but the added restriction may result in ineffective suction rates or no suction at all. In addition, remember that fittings and even hose add to the restriction within the system and may affect or eliminate the suction capabilities Orifice: 1.8 mm Pressure Rate: Up to 3650 PSI Flow Rate: 1.5 to 2.25 GPM Temperature: 176 F Inlet: 3/8" FPT Outlet: 3/8" FPT Bypass: 1/4" FPT Gauge Port: 1/4" FPT Weight: 22.5 oz Part# 1452 Our Price: $69.12 Qty:
	ST-261 W/INJECTOR Features: Regulating unloader valve Tamper resistant operator adjustable valve which allows limit setting on both maximum and minimum pressure Ideal for steam combination applications Straight flow-through design minimizes pressure loss through valve Working components constructed of high grade stainless steel, teflon, and Viton seals for maximum heat/chemical resistance Internal bypass valve can be easily accessed and repaired without removing unloader from unit True to Suttner design tradition, valve is cartridge type and installed in minutes Pressure adjustment knob can be removed if desired Specifications Downstream injection at 10:1 ratio Low pressure limit setting eliminates the need of additional metering devices Relies on pressure loss through a restrictive orifice, which is built-in on the ST-261. Restriction AFTER the orifice must be minimized in order for injection to occur. Therefore, this system must incorporate a large orifice spray nozzle which reduces such restriction. The usage of a nozzle with a minimum orifice size of 30.0 is recommended. A smaller nozzle may be used, but the added restriction may result in ineffective suction rates or no suction at all. In addition, remember that elbow, fittings, and enen hose add to the restriction within the system and may affect or eliminate the suction capabilities Orifice:2.1 mm Pressure Rate: up to 3650 PSI Flow Rate: 2.25 to 3.35 GPM Temperature: 176 F Inlet: 3/8" FPT Outlet: 3/8" FPT Bypass: 1/4" FPT Gauge: 1/4" FPT Weight: 22.5 oz Part# 1453 Our Price: $69.12 Qty:
	ST-261 W/INJECTOR Features: Regulating unloader valve Tamper resistant operator adjustable valve which allows limit setting on both maximum and minimum pressure Ideal for steam combination applications Straight flow-through design minimizes pressure loss through valve Working components constructed of high grade stainless steel, teflon, and Viton seals for maximum heat/chemical resistance Internal bypass valve can be easily accessed and repaired without removing unloader from unit True to Suttner design tradition, valve is cartridge type and installed in minutes Pressure adjustment knob can be removed if desired Specifications Downstream injection at 10:1 ratio Low pressure limit setting eliminates the need of additional metering devices Relies on pressure loss through a restrictive orifice, which is built-in on the ST-261. Restriction AFTER the orifice must be minimized in order for injection to occur. Therefore, this system must incorporate a large orifice spray nozzle which reduces such restriction. The usage of a nozzle with a minimum orifice size of 30.0 is recommended. A smaller nozzle may be used, but the added restriction may result in ineffective suction rates or no suction at all. In addition, remember that elbow, fittings, and enen hose add to the restriction within the system and may affect or eliminate the suction capabilities Orifice:2.4 mm Pressure Rate: up to 3650 PSI Flow Rate: 3.35 to 5.00 GPM Temperature: 176 F Inlet: 3/8" FPT Outlet: 3/8" FPT Bypass: 1/4" FPT Gauge: 1/4" FPT Weight: 22.5 oz Part# 1397 Our Price: $69.12 Qty:
	ST-261 W/SWITCH The micro switch is an SPST-NC AC switch mounted in place of the bypass fitting. It is ideal for solenoid activation, time delay, shutdown systems. Switch is wired "normally closed" and is opened by the unloader piston during bypass. Features: Regulating unloader valve Tamper resistant operator adjustable valve which allows limit setting on both maximum and minimum pressure Ideal for steam combination applications Straight flow-through design minimizes pressure loss through valve Working components constructed of high grade stainless steel, teflon, and Viton seals for maximum heat/chemical resistance Internal bypass valve can be easily accessed and repaired without removing unloader from unit True to Suttner design tradition, valve is cartridge type and installed in minutes Pressure adjustment knob can be removed if desired Specifications The micro switch is an STSP-NC A.C. switch mounted in the place of the bypass fitting. The switch allows the actuation of solenoids, display lights, timers, or other electrical devices. Switch wired "Normally Closed" and is opened by the unloader piston during the bypass mode. The switch is ideal for solenoid activation, time delay shutdown systems, swquencers, and other related systems Switch Specs: 5A @ 125 VAC or 3A @ 250 VAC Pressure Range: up to 3650 PSI Flow Range: up to 8 GPM Temperature: 176 F Inlet: 3/8" FPT Outlet: 3/8" FPT Guage Port: 1/4" FPT WEIGHT: 22.5 oz Part# 2379 Our Price: $110.52 Qty:
No Picture Available	Micro Switch Part# 3847 Our Price: $60.24 Qty:
	ST-280 UNLOADER Maximum pressure: 3600 PSI Maximum Flow: 8 GPM Maximum temperature: 176 F Inlet: 3/8" FPT Outlet: 3/8" FPT Bypass: 1/4" FPT Part# 3710 Our Price: $76.20 Qty:
No Picture Available	Kit "C" Part# 5662 Our Price: $8.58 Qty:
No Picture Available	Kit "D" Part# 5663 Our Price: $8.34 Qty:
	TRAPPED PRESSURE - YU2121 Trapped pressure type for systems up to 21 GPM. 2175 PSI maximum 21 GPM maximum 200 F. maximum

Number #1 For Lawn Mower Parts! Over 1.2 Million Parts Available!

Number #1 For Lawn Mower Parts!
Over 1.2 Million Parts Available!