---
product_id: 325473010
title: "PumpSpy Silent Check Valve - 1-1/2\" with Buna-N Couplings, Model CV-150, Spring-Loaded Flapper, Sump Pump Life Expectancy Increase, Includes Steel Clamps Fit 1-1/2″ Pipe"
brand: "pumpspy"
price: "₪137"
currency: ILS
in_stock: true
reviews_count: 8
category: "Pump Spy"
url: https://www.desertcart.co.il/products/325473010-pumpspy-silent-check-valve-1-1-2-with-buna-n
store_origin: IL
region: Israel
---

# Silent spring-loaded flapper Clear valve body for visual flow check Includes stainless steel clamps & Buna-N couplings PumpSpy Silent Check Valve - 1-1/2" with Buna-N Couplings, Model CV-150, Spring-Loaded Flapper, Sump Pump Life Expectancy Increase, Includes Steel Clamps Fit 1-1/2″ Pipe

**Brand:** pumpspy
**Price:** ₪137
**Availability:** ✅ In Stock

## Summary

> 🔇 Quiet power, visible flow — protect your pump like a pro!

## Quick Answers

- **What is this?** PumpSpy Silent Check Valve - 1-1/2" with Buna-N Couplings, Model CV-150, Spring-Loaded Flapper, Sump Pump Life Expectancy Increase, Includes Steel Clamps Fit 1-1/2″ Pipe by pumpspy
- **How much does it cost?** ₪137 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/325473010-pumpspy-silent-check-valve-1-1-2-with-buna-n)

## Best For

- pumpspy enthusiasts

## Why This Product

- Trusted pumpspy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Extend Pump Lifespan:** Prevents water backflow, reducing pump wear and doubling your sump pump’s life expectancy.
- • **See Your Pump in Action:** Transparent valve body lets you visually confirm water flow and pump health instantly.
- • **Trusted PumpSpy Quality:** Backed by a brand dedicated to smart, reliable sump pump solutions that protect your home.
- • **Whisper-Quiet Operation:** Eliminates disruptive water hammer noise for a peaceful home environment.
- • **Effortless DIY Installation:** Comes with durable clamps and flexible Buna-N couplings for a snug fit on 1-1/2" pipes.

## Overview

The PumpSpy Silent Check Valve Model CV-150 is a 1-1/2" spring-loaded sump pump valve featuring a clear ABS body for easy flow monitoring, Buna-N rubber couplings, and stainless steel clamps for quick installation. Designed to eliminate water hammer noise and prevent backflow, it significantly extends sump pump life while ensuring silent, reliable operation.

## Description

PumpSpy's Silent Sump Pump Check Valve brings quiet operation and visibility to your sump pump system. This check valve is designed to allow maximum water flow from your pump. The clear valve body shows if water is moving and the pump works as designed. The spring-loaded flapper keeps the operation quiet, with no jarring water hammer noises. Our sump pump check valves are made with easy installation in mind and come with stainless steel clamps and Buna-N couplings that fit 1-1/2″ pipe. This sump pump check valve can quietly prevent water from being pumped twice and extend the life of a pump. Product Specs: Model: CV-150, 1 1/2 inch check valve, spring-loaded flapper Dimensions: 8.5 x 3 x 3 inches; Weight: 12.8 ounces.

Review: Easy to install, works like a charm! - I recently had to replace a 20 year old sump pump and I initially made the mistake of not replacing the also 20 year old check valve. I went ahead and ordered this relatively inexpensive part. Installation was super easy. No need to worry about screwing this on a threaded PVC piece, I just slipped the rubber ends on and tightened the metal bands using a flathead and it was nice and snug. Once I turned on the new sump pump, it worked like a charm and super seamless! No leaks and it was really quiet too! I love that I can also visibly see the little stopper that’s inside. Save yourself the labor costs getting a plumber to install, you can do it yourself with YouTube and some good ol’ fashioned manual labor.
Review: Quiet and running great for 2+ years - We’ve had this running for over 2 years on our sump pump and it’s been working great, much quieter than the standard valve it replaced. No more banging noise throughout the house when closing!

## Features

- 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | PumpSpy |
| Color | Clear |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Power Source | No Power Source |
| Product Dimensions | 8.5"L x 3"W x 3"H |
| Style | Submersible |

## Product Details

- **Brand:** PumpSpy
- **Color:** Clear
- **Material:** Acrylonitrile Butadiene Styrene (ABS)
- **Style:** Submersible
- **Product Dimensions:** 8.5"L x 3"W x 3"H
- **Power Source:** Ac/dc
- **Item Weight:** 12.8 ounces
- **Global Trade Identification Number:** 00850004841143
- **Manufacturer:** Raybend

## Images

![PumpSpy Silent Check Valve - 1-1/2" with Buna-N Couplings, Model CV-150, Spring-Loaded Flapper, Sump Pump Life Expectancy Increase, Includes Steel Clamps Fit 1-1/2″ Pipe - Image 1](https://m.media-amazon.com/images/I/71lB0cGelrL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to install, works like a charm!
*by V***M on October 15, 2025*

I recently had to replace a 20 year old sump pump and I initially made the mistake of not replacing the also 20 year old check valve. I went ahead and ordered this relatively inexpensive part. Installation was super easy. No need to worry about screwing this on a threaded PVC piece, I just slipped the rubber ends on and tightened the metal bands using a flathead and it was nice and snug. Once I turned on the new sump pump, it worked like a charm and super seamless! No leaks and it was really quiet too! I love that I can also visibly see the little stopper that’s inside. Save yourself the labor costs getting a plumber to install, you can do it yourself with YouTube and some good ol’ fashioned manual labor.

### ⭐⭐⭐⭐⭐ Quiet and running great for 2+ years
*by N***M on December 3, 2025*

We’ve had this running for over 2 years on our sump pump and it’s been working great, much quieter than the standard valve it replaced. No more banging noise throughout the house when closing!

### ⭐⭐⭐⭐⭐ GREAT!
*by K***Y on January 15, 2026*

We've been putting up with these loud knocks in the pipes for YEARS whenever the sump pump came on. It took my husband about 15 minutes to put this in and bingo, no more noise.

## Frequently Bought Together

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*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-01-31*