The Multiquip SP3357 Valve Binder SDP-2 is a genuine OEM replacement designed for STOW SDP-2 diaphragm pumps. Sourced directly from Multiquip, this part meets the original design specifications for the SDP-2 platform, ensuring correct fit and function without guesswork. If you are servicing or rebuilding a STOW SDP-2 diaphragm pump, SP3357 is the authorized replacement valve binder for that application.
Key Features
- Genuine OEM Construction — Manufactured to the original valve seat and binder geometry required for proper sealing in diaphragm pump service, eliminating the dimensional uncertainty that can come with unverified alternatives.
- Direct-Fit for SDP-2 Diaphragm Pumps — Engineered specifically for STOW SDP-2 pump configurations, this binder seats and fastens exactly as the original, keeping valve service straightforward.
- SDP-2 Platform Compatibility — Confirmed fitment for STOW SDP-2 diaphragm pump models, so you can order with confidence when servicing that equipment family.
- Maintains Valve Integrity Under Pressure — A correctly installed valve binder holds the valve assembly firmly in position, supporting consistent flow control and preventing internal bypass during pump operation.
- Authorized Multiquip Replacement — Sold by DHS Equipment as an authorized Multiquip parts distributor, backed by the OEM part number SP3357 for accurate sourcing and record-keeping.
The valve binder is a critical retention component in a diaphragm pump's valve assembly. It holds the valve element securely against its seat, allowing the pump to draw fluid in and push it out in a controlled, one-directional flow. When a valve binder becomes worn, cracked, or loses its clamping integrity, the valve can shift or flutter under pressure — causing the pump to lose prime, produce uneven output, or fail to move fluid altogether. Replacing a damaged binder with the correct OEM part restores proper valve seating and gets the pump back to full working capacity.
Part Details
| Part Number | SP3357 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Valve Binder SDP-2 |
Compatibility & Fitment
| Name | Model |
|---|---|
| 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.
