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Picture of VHP51 Adjustable Unloader 8,000 PSI

VHP51 Adjustable Unloader 8,000 PSI

SKU: 4072000122

Brand: Mecline

Only $189.24

Customer Product Rating
Product Description

Mecline VHP51 Unloader Valve 8,000 PSI. With working pressures up to 7,250 PSI and flows up to 26.4 GPM, the VHP51 can continuously handle water up to 160° F (up to 194° F for short periods)

• Positioning of all o-rings before the threads, giving greater mechanical strength
• Ease of maintenance: the whole regulating unit can be totally removed from on top
• The locking ring nut has a set screw for a safer pressure setting
• A nickel-plated brass body, granting greater resistance to corrosion and overall wear
• All internal parts in stainless steel, including the outlet fitting and piston cylinder
• Internal safety lock to avoid overpressure
• Suitable for wall mount

• Rated Pressure: 7,250 PSI
• Permissible Pressure: 8,000 PSI
• Rated Temperature: 194° F
• Rated Flow Rate: 26.4 GPM
• Material: Chemically nickel-plated brass body. Internal parts in Stainless steel including fittings
• Inlet Port: 1/2" F
• Outlet Port: 1/2” F
• Bypass Port: 1/2”
• Replaces VHP50-500
• Weight: 40.57 Oz


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#4.0 x 15º 1/4" MPT High Pressure Ceramic Spray Nozzle

SKU: NZC1504

Mecline 15° High Pressure Threaded Spray Nozzle with Ceramic Orifice and 1/4” Male NPT

• Ceramic inserts provide up to 10 times the wear life of stainless steel inserts
• Ceramic insert is resistant to wear
• The ceramic insert guarantees a more precise and stronger stream
• Stainless Steel AISI303 body

• Flat fan jet angle: 15°
• Nozzle Size: 4.0
• Rated Pressure: 4,500 PSI
• Permissible Pressure: 5,075 PSI
• Rated Temperature: 300° F
• Inlet: 1/4” Male NPT
• Weight: 0.63 oz

Please use Nozzle Chart to determine proper nozzle size

Nozzle Chart


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Quick Connect Fittings 5,000 PSI (SS Plug & SS Socket)

SKU: 88.0155

3/8" 5,000 PSI Stainless Steel Quick Connect Fittings (1 Plug & 1 Socket)

• Working Pressure: 5,000 PSI
• 1 pc: 3/8 FPT Stainless Steel quick coupler socket
• 1 pc: 3/8 FPT Stainless Steel quick coupler plug
• Works with standard quick connects

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VRT3 Adjustable Unloader 4,500 PSI (Black)

SKU: VRT3-310

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

• 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

• 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

Price: $39.75