The Multiquip EM402394 Back Up Washer is a genuine OEM component designed for MG30T2D, MG30M2D, MG30T3D, MG30M3D, and MG30 series fireproofing pumps and mixers. As a direct OEM replacement, this washer meets the original design specifications set by Multiquip, ensuring it seats and seals correctly within the assembly. Sourced through DHS Equipment, you can trust you are receiving an authentic Multiquip part backed by the manufacturer. Confirm your model code before ordering to ensure correct fitment with your specific MG30 series unit.
Key Features
- Genuine OEM Construction — Manufactured to Multiquip's original material and dimensional standards, ensuring proper compression behavior and sealing performance within the pump or mixer assembly.
- Drop-In Installation — Engineered to match the original washer profile, allowing the part to seat correctly against mating surfaces without rework or shimming.
- Broad MG30 Series Compatibility — Fits MG30T2D, MG30M2D, MG30T3D, MG30M3D, and MG30 models, covering both fireproofing pump and mixer configurations in the MG30 lineup.
- Sealing Integrity Under Pressure — A correctly functioning back up washer prevents seal extrusion and maintains fluid containment under operating pressure; a worn or missing washer can lead to seal failure and fluid leakage.
- Fluid System Safety — In pressurized fireproofing pump applications, a compromised washer can result in uncontrolled fluid release — replacing worn washers at service intervals is a critical safety practice.
A back up washer is a support component used in conjunction with an O-ring or primary seal in pressurized assemblies. Its role is to prevent the softer sealing material from extruding into gaps under pressure, which would compromise the seal and allow fluid to escape. When a back up washer wears, cracks, or deforms, the primary seal loses its structural support and is far more likely to fail — leading to leaks, pressure loss, and potential equipment damage. Replacing this part as part of routine seal service keeps the pump or mixer operating at designed pressure and flow specifications.
Part Details
| Part Number | EM402394 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Back Up Washer |
Compatibility & Fitment
| Name | Model |
|---|---|
| Fireproofing Pumps | MG30T2D |
| Fireproofing Pumps | MG30M2D |
| Fireproofing Pumps | MG30T3D |
| Fireproofing Pumps | MG30M3D |
| Fireproofing Pumps | MG30 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
