Contract Cleaner Supplies
Due to inclimate weather at our main shippng warehouse, some shipments may experience delays.

MTM Hydro Unloaders

MG 4000 Series Unloaders


Best Value, available with or without pressure switch.


MTM Hydro MG 4000 Unloader

  • Forged brass body
  • 200°F Max
  • 1/4" Auxiliary port
  • 3/8" Female NPT Inlet, Outlet, & Bypass
  • 10 GPM
  • Can be panel mounted
  • Max pressure indicated with color coded ring
Part Number Description PSI Color Code Price  
UL-463108-77

Unloader w/o Knob

1500

Yellow

$57.24
  
UL-463110-77

Unloader w/ Knob

1500

Yellow

$60.54
  
UL-463114-77

Unloader w/o Knob

3000

Red

$52.14
  
UL-463108K-77

Unloader w/ Knob

3000

Red

$54.64
  
UL-463110K-77

Unloader w/o Knob

4500

Black

$63.64
  
UL-463114K-77

Unloader w/ Knob

4500

Black

$65.54
  
UL-111442-77

Repair Kit

$20.54
  

MG 4000 Series Unloader w/ Microswitch


MTM Hydro MG 4000 Unloader


  • Can be used as normally open (NO) or normally closed (NC)
  • 15 Amp Microwitch
  • Use for burner controll or time delay shut down
Part Number Description PSI Color Code Price  
UL-463109K-77

Unloader w/ Microswitch

1500

Yellow

$85.19
  
UL-463111K-77

Unloader w/ Microswitch

3000

Red

$77.79
  
UL-463105K-77

Unloader w/ Microswitch

3600

Blue

$84.89
  
UL-463115K-77

Unloader w/ Microswitch

4500

Black

$88.59
  

Unloader Mounting Block


Eliminate fitting failure caused by vibration.


AR Gymatic Unloader



  • 12 GPM
  • Machined Brass Block
  • Hardware Included
Part Number Inlet Outlet Price  
UL-462183X-79

3/8" Female NPT

3/8" Female NPT

$28.54
  
UL-462182X-79

1/2" Female NPT

1/2" Female NPT

$28.54
  

Trigger
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