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Blue Def DEF5702 nylon coupler with EPDM seal

Blue Def

Blue Def DEF5702 Coupler accessory

SKU CH-793M-JYJ3D

A nylon-bodied coupler with EPDM seals and a 3/4-inch hose bore connects to 4-pin RSV valves on DEF totes, meeting ISO22241 standards to protect fluid from contamination

  • ISO22241 compliant for DEF system integrity
  • Nylon body with EPDM seal resists chemical wear
  • 2 in tote and 3/4 in buttress connections fit standard RSV valves
  • 3/4 in hose bore maintains full DEF flow rate
  • Contamination protection keeps fluid clean during transfer

Diesel Exhaust Fluid Coupler

The Blue Def DEF5702 is a nylon-bodied coupler designed for diesel exhaust fluid transfer systems. It connects to a two-inch tote fitting and a three-quarter-inch buttress-threaded port. The EPDM seal and polyethylene wetted materials meet ISO 22241 compliance for fluid purity. This accessory suits fleets and workshops that dispense DEF from bulk totes.

Build Integration and Compatibility

The coupler threads directly onto a four-pin RSV valve without additional adapters. Its three-quarter-inch hose bore matches standard DEF discharge lines, freeing the installer from sourcing reducer fittings. The nylon construction resists corrosion from urea solution, so no separate chemical-resistant coating is required. Buyers needing a different tote connection size or thread type cannot use this model.

Thermals, Noise and Power

As a passive fluid fitting the coupler generates no heat, draws no electrical power and produces no audible noise during operation. The EPDM seal maintains integrity across normal DEF storage temperatures without weeping. No active cooling or power supply is involved, so system energy budgets remain unchanged. The component simply transmits fluid while protecting against contamination.

Highlights

  • ISO22241 compliant for DEF system integrity
  • Nylon body with EPDM seal resists chemical wear
  • 2 in tote and 3/4 in buttress connections fit standard RSV valves
  • 3/4 in hose bore maintains full DEF flow rate
  • Contamination protection keeps fluid clean during transfer

Specifications

BrandBLUE DEF

Questions about this item

How long will the EPDM seal last before it degrades under constant DEF exposure?

The EPDM seal material is chosen for Diesel Exhaust Fluid compatibility and meets ISO 22241 compliance for contamination protection.

Does the coupler body or seal generate noticeable heat during continuous pump operation?

The nylon body and EPDM seal are passive components; they do not generate heat during fluid transfer.

What valve type must already be on the DEF tote for this coupler to connect?

This coupler is designed for use with a 4-pin RSV valve on the tote.

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