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Dayton Valve: 3/8 in Bypass Connection Size, Brass, 4,500 psi Max. Op Pressure - Unloader Valves
DaytonUnloader Valves

Dayton Valve: 3/8 in Bypass Connection Size, Brass, 4,500 psi Max. Op Pressure

SKU 3G-OTH-440894

Brand
Dayton
Item
Valve: 3/8 in Bypass Connection Size, Brass, 4,500 psi Max. Op Pressure
Category
Unloader Valves
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Technical Specifications

Dayton
Manufacturer Part Number
1MDA4
Type
Brass
Overall Ht
6 3/4 in
Max. Op Pressure
4,500 psi
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Technical Documents

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Dayton Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is a DAYTON unloader valve used for?

A DAYTON unloader valve, like the 1MDA4, is used in pressure washers and high-pressure cleaning systems to bypass flow when the trigger is released, protecting the pump from deadheading and reducing wear.

What are the specifications of the DAYTON 1MDA4 unloader valve?

The DAYTON 1MDA4 unloader valve is a brass type with a 3/8 in bypass connection size, a maximum operating pressure of 4,500 psi, and an overall height of 6 3/4 in. It is designed for high-pressure cleaning applications.

Where to buy a DAYTON 1MDA4 unloader valve worldwide?

You can source the DAYTON 1MDA4 unloader valve from 3G Electric, which handles global logistics, customs clearance, and delivery to worldwide destinations. We supply genuine industrial parts across 14 departments.

How to install a DAYTON unloader valve on a pressure washer?

To install a DAYTON unloader valve, first depressurize the system. Remove the old valve, apply thread sealant to the new valve's threads, and tighten it into the pump bypass port. Reconnect hoses and test for leaks at low pressure before full operation.

Used in

Common applications for Dayton
HVAC ventilation — DAYTON centrifugal upblast roof exhaust fans (SKU 7M7U3) for kitchen exhaust systems
Mechanical power transmission — DAYTON HTD timing pulleys (SKU 404GV0) for conveyor belt drives
Process water handling — DAYTON self-priming centrifugal pumps (SKU 2ZXT4) for dewatering or transfer
Roofing and building services — DAYTON fixed ventilated roof curbs (SKU 4HX59) for filtered supply fan installations
Material handling — DAYTON latch assemblies (SKU 2KEN4) for electric chain hoist hook safety
Industrial air movement — DAYTON downblast roof exhaust fans (SKU 3HFL9) for clean air exhaust in manufacturing plants

Dayton Products

3G Electric supplies Dayton unloader valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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