The Multiquip 1378350350 is a genuine OEM Check Valve designed for a wide range of Multiquip trash pump and centrifugal pump models including QP3TH, QP3TZ, QP3TS, QP3TK, QP3THX, QP303H, QP303B, QP3TB, QP205SH, QP205SLT, QP305SLT, QPT205SLT, and QPT305SLT. Sourced directly from Multiquip, this part meets the exact specifications of the original component it replaces. Using a genuine OEM part ensures correct seating, sealing, and flow direction control within your pump system — keeping fluid movement efficient and consistent. Confirm your model code against the fitment list above before ordering to ensure a direct match.
Key Features
- OEM-Spec Sealing Performance — Manufactured to the same material grade and dimensional tolerances as the original, ensuring positive one-way flow control without backflow or pressure bleed-back.
- Direct-Fit Replacement — Engineered to install into the same valve seat and port configuration as the factory component, with no reworking of surrounding hardware required.
- Broad Pump Compatibility — Fits QP-series trash and centrifugal pump models including QP3TH, QP3TZ, QP303H, QP205SLT, QP305SLT, QPT205SLT, QPT305SLT, and additional QP3T and QP303 variants.
- Sustained Pump Efficiency — A properly functioning check valve maintains prime and sustains consistent discharge pressure; a worn or failed valve causes loss of prime, backflow, and reduced output.
- Fluid System Integrity — Correct check valve function prevents reverse flow from damaging impeller components and associated pump internals, protecting the broader fluid system from premature wear.
A check valve is a one-way flow control component installed in the pump's fluid path to allow liquid to move in a single direction while preventing it from flowing backward when the pump stops or pressure drops. In trash and centrifugal pump applications, the check valve plays a critical role in maintaining prime — without it, the pump loses its fluid column and must be reprimed before it can move water again. When a check valve wears out, cracks, or fails to seat properly, operators will notice loss of prime, reduced discharge volume, and potential backflow into the suction line.
For questions about fitment or to confirm this part is correct for your specific unit, contact DHS Equipment directly.
Part Details
| Part Number | 1378350350 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Check Valve |
Compatibility & Fitment
| Name | Model |
|---|---|
| Centrifugal Pumps | QP3TH |
| Centrifugal Pumps | QP303H |
| Centrifugal Pumps | QP3TZ |
| Centrifugal Pumps | QP205SLT |
| Centrifugal Pumps | QP305SLT |
| Centrifugal Pumps | QPT205SLT |
| Centrifugal Pumps | QPT305SLT |
| Centrifugal Pumps | QP3THX |
| Centrifugal Pumps | QP3TB |
| Centrifugal Pumps | QP205SH |
| Centrifugal Pumps | QP303B |
| Centrifugal Pumps | QP3TK |
| Centrifugal Pumps | QP3TS |
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.
