The Multiquip 2023356 Flap Valve is a genuine OEM component designed for MQ Diaphragm Pumps and STOW Diaphragm Pump models including the SDP-3 and SDP-2. Sourced directly from Multiquip, this part meets the exact material and dimensional specifications of the original, ensuring a seamless drop-in installation with no guesswork. It is confirmed compatible with the CA90749, SDP-3, and SDP-2 STOW Diaphragm Pump series as well as MQ Diaphragm Pump applications. When your pump's flow rate drops or backflow becomes an issue, replacing the flap valve with a genuine OEM part restores proper pumping performance immediately.
Key Features
- Genuine OEM Material Integrity — manufactured to Multiquip's original material specification for the correct flex, durability, and sealing performance expected of a diaphragm pump valve.
- Direct-Fit Installation — matches the original valve's profile and mounting geometry, dropping straight into MQ and STOW diaphragm pump valve seats without trimming or modification.
- Broad Diaphragm Pump Compatibility — verified fitment across MQ Diaphragm Pumps, SDP-3, SDP-2, and CA90749 STOW Diaphragm Pump models.
- Restores Full Flow Efficiency — a worn or torn flap valve allows backflow between strokes, robbing the pump of prime and output volume; a fresh OEM valve snaps the pump back to rated performance.
- Fluid-Handling Safety — correct valve seating prevents uncontrolled reverse flow of pumped media, an important operational consideration when handling slurries, wastewater, or chemically active fluids.
The flap valve is a critical one-way check component inside a diaphragm pump's fluid end. On each stroke of the diaphragm, the valve opens to allow fluid to pass in the intended direction and then snaps shut to prevent backflow, maintaining prime and delivering consistent output pressure. When a flap valve cracks, deforms, or loses its sealing edge, the pump loses prime, output pressure drops, and efficiency falls sharply — symptoms that are quickly resolved by installing a correctly specified replacement like the Multiquip 2023356.
Part Details
| Part Number | 2023356 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Flap Valve |
Compatibility & Fitment
| Name | Model |
|---|---|
| MQ Diaphragm Pumps | MQ-D206H |
| STOW Diaphragm Pumps | SDP-3 |
| STOW Diaphragm Pumps | CA90749 |
| STOW Diaphragm Pumps | SDP-2 |
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.
