---
product_id: 325473010
title: "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: "€ 46.25"
currency: EUR
in_stock: true
reviews_count: 13
category: "Pump Spy"
url: https://www.desertcart.gr/products/325473010-silent-check-valve-1-1-2-with-buna-n-couplings
store_origin: GR
region: Greece
---

# Silent spring-loaded flapper Clear valve body for visual flow check Includes stainless steel clamps & Buna-N couplings 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:** € 46.25
**Availability:** ✅ In Stock

## Summary

> 🔇 See the flow, hear the silence — upgrade your sump game!

## Quick Answers

- **What is this?** 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?** € 46.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/325473010-silent-check-valve-1-1-2-with-buna-n-couplings)

## 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

- • **Compact & Compatible:** Slim 5-1/8" fit designed for Schedule 40 pipes, perfect for modern sump systems.
- • **Pump Longevity Booster:** Prevents water backflow, reducing pump strain and extending sump pump life expectancy.
- • **Whisper-Quiet Operation:** Eliminates disruptive water hammer noise for a peaceful home environment.
- • **Visual Flow Confirmation:** Transparent valve body lets you instantly verify water movement and pump health.
- • **Effortless DIY Installation:** Comes with durable clamps and flexible couplings that fit standard 1.5" pipes—no plumber needed.

## Overview

The PumpSpy Silent Check Valve Model CV-150 is a 1.5-inch, spring-loaded flapper valve with a clear ABS body that eliminates water hammer noise while allowing visual confirmation of water flow. Designed for easy installation with included stainless steel clamps and Buna-N couplings, it fits standard Schedule 40 pipes and helps extend sump pump life by preventing backflow.

## 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: Best thing since sliced bread! - I wish I had known about this years ago. No more water hammer! This thing is whisper quiet and takes stress off the pump.

## 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 |
|---------------|-------|
| ASIN | B091V15RHZ |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #2,926 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Check Valves |
| Brand | PumpSpy |
| Color | Clear |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,842) |
| Date First Available | April 6, 2021 |
| Global Trade Identification Number | 00850004841143 |
| Included Components | Silent Check Valve |
| Item Package Quantity | 1 |
| Item Weight | 12.8 ounces |
| Item model number | CV-150 |
| Manufacturer | Raybend |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Part Number | 93100-01 |
| Power Source | No Power Source |
| Product Dimensions | 8.5"L x 3"W x 3"H |
| Size | 1.5 Inches |
| Style | Submersible |

## Product Details

- **Brand:** PumpSpy
- **Color:** Clear
- **Global Trade Identification Number:** 00850004841143
- **Item Weight:** 0.8 Pounds
- **Manufacturer:** Raybend
- **Material:** Acrylonitrile Butadiene Styrene (ABS)
- **Power Source:** No Power Source
- **Product Dimensions:** 8.5"L x 3"W x 3"H
- **Style:** Submersible

## Images

![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.

### ⭐⭐⭐⭐⭐ Best thing since sliced bread!
*by T***N on January 26, 2026*

I wish I had known about this years ago. No more water hammer! This thing is whisper quiet and takes stress off the pump.

### ⭐⭐⭐⭐⭐ Silent is the perfect word to describe this valve!
*by S***A on January 30, 2026*

The word SILENT certainly fits this description for the valve! Easy to install, tight fit and quiet!

## Frequently Bought Together

- 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
- PumpSpy Sump Pump Stand - Increases Sump Pump Life, Prevents Sediment Buildup and Clogging, Compatible with Most Pumps
- Wayne 58321-WYN3 CDU980E 3/4 HP Submersible Cast Iron and Stainless Steel Sump Pump with Integrated Vertical Float Switch, Large, Silver

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.gr/products/325473010-silent-check-valve-1-1-2-with-buna-n-couplings](https://www.desertcart.gr/products/325473010-silent-check-valve-1-1-2-with-buna-n-couplings)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-26*