PumpSpy
PumpSpy Silent Check Valve - 1-1/2" with Buna-N Couplings, Model CV-150, Spring-Loaded
Disclosure: We may earn a commission when you buy through links on this page, at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. Learn more
Highlights
- QUIET OPERATION: Our sump pump check valve has a unique spring-loaded flapper that helps eliminate the water hammer noise that standard check valves produce. The water hammer noise occurs when the discharged water slams the check valve flapper down. This silent check valve can bring a quiet operation to your sump pump.
- CLEAR VALVE BODY: This check valve will provide visibility to water movement. With the valve's clear body, it's easy to visually confirm that pumped contents are moving, the pipes are not clogged, and the pump in the basin is fully operational.
- INCLUSIONS: Our silent sump pump check valve comes with stainless steel clamps and Buna-N rubber couplings for quick installation. The clamps and couplings fit a 1-1/2" Schedule 40 pipe. Fits within a 5-1/8" gap.
- KEEP WATER OUT: This check valve is designed to keep pumped water within the discharge pipe from falling back into the sump basin. A fully functional sump pump check valve can increase pump life expectancy by preventing water from being pumped twice.
- ABOUT US: PumpSpy provides sump pump systems that help eliminate the unknowns of a sump outage and prevents costly damage. We also offer Smart Sump Pump Systems that automatically track incoming data and check that a sump pump is working properly.
Why You'll Love It
- Spring-loaded flapper dampens the sudden slam that causes loud water hammer noise
- Clear valve body lets you visually inspect water flow and check for pipe blockages
- Prevents discharged water from flowing backward, reducing unnecessary strain on your sump pump
- Includes Buna-N rubber couplings and stainless steel clamps for straightforward installation
- Compact housing fits inside a standard 5-1/8 inch pipe gap
Pros
- +Spring-loaded design dampens water hammer noise
- +Clear body allows instant visual flow checks
- +Includes Buna-N couplings and stainless clamps
- +Helps extend pump life by stopping backflow
Cons
- -Limited to 1-1/2 inch Schedule 40 pipes
- -Requires a 5-1/8 inch gap in the line
Detailed Review
The PumpSpy CV-150 Silent Check Valve is designed to stop discharged water from draining back down into your sump pump basin. Backflow forces the pump to cycle repeatedly for the same water, which increases wear and tear over time. Installing this inline valve protects your setup by ensuring water moves in one direction only.
Noise reduction is the core benefit of this model. Standard check valves frequently produce a jarring water hammer sound when discharged water slams the flapper shut. PumpSpy addresses this issue with a spring-loaded flapper mechanism, which controls the closure and creates quieter overall pump operation.
Monitoring your system is straightforward thanks to the clear valve body. You can visually inspect the line to confirm water is moving freely, check that the basin pump is actively discharging, and spot potential pipe clogs without taking the plumbing apart. For installation, the package comes complete with stainless steel clamps and durable Buna-N rubber couplings.
Keep in mind that sizing is specific. This model is built specifically for 1-1/2 inch Schedule 40 piping and requires a 5-1/8 inch gap along your discharge pipe to fit properly. If your plumbing uses a different diameter or lacks the necessary clearance, this valve will not work without adapters.
Verdict: The PumpSpy CV-150 is an excellent upgrade for homeowners tired of noisy sump pump thuds and who want clear visual confirmation of their discharge flow. If you have 1-1/2 inch Schedule 40 pipes and 5-1/8 inches of space, it delivers quiet, reliable performance.
Specifications
- Model: CV-150
- Compatible Pipe Size: 1-1/2 inch Schedule 40
- Required Gap: 5-1/8 inches
- Coupling Material: Buna-N rubber
- Clamp Material: Stainless steel
- Valve Mechanism: Spring-loaded flapper
- Body Type: Clear view
Who Should Buy It
A great fit if you:
- Hear loud water hammer thuds whenever your sump pump shuts off
- Want to visually confirm that water is pumping without taking pipes apart
- Are installing or repairing a 1-1/2 inch Schedule 40 sump discharge line
- Need a complete kit that includes the rubber couplings and clamps
Consider something else if you:
- Have discharge pipes that are larger or smaller than 1-1/2 inches
- Have less than 5-1/8 inches of clearance on your discharge pipe
FAQ
How does this valve quiet down the sump pump?
It features a spring-loaded flapper that helps prevent discharged water from slamming the valve shut, eliminating standard water hammer noise.
What pipe size does this check valve fit?
It is designed to fit 1-1/2 inch Schedule 40 pipes and fits within a 5-1/8 inch gap.
What parts are included in the package?
The check valve comes with Buna-N rubber couplings and stainless steel clamps for installation.
Why is the valve body transparent?
The clear body provides visibility to water movement so you can visually verify that the pump is running and the pipes are not clogged.
Product Details
| Brand | PumpSpy |
| ASIN | B091V15RHZ |
