---
product_id: 174886653
title: "CSV12540-3 Pump Control Valve, 1-1/4\" Threaded, 40 psi, 3 gpm Bypass"
brand: "cycle stop valves"
price: "KSh5554"
currency: KES
in_stock: false
reviews_count: 8
url: https://www.desertcart.co.ke/products/174886653-csv12540-3-pump-control-valve-1-1-4-threaded-40
store_origin: KE
region: Kenya
---

# Max GPM: 50 Female Threaded Preset Pressure: 40 PSI CSV12540-3 Pump Control Valve, 1-1/4" Threaded, 40 psi, 3 gpm Bypass

**Brand:** cycle stop valves
**Price:** KSh5554
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Elevate Your Pump Game!

## Quick Answers

- **What is this?** CSV12540-3 Pump Control Valve, 1-1/4" Threaded, 40 psi, 3 gpm Bypass by cycle stop valves
- **How much does it cost?** KSh5554 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/174886653-csv12540-3-pump-control-valve-1-1-4-threaded-40)

## Best For

- cycle stop valves enthusiasts

## Why This Product

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

## Key Features

- • **Unleash the Flow:** Max GPM of 50 for optimal performance
- • **Robust Durability:** Engineered to withstand demanding environments
- • **Seamless Integration:** Designed with female threads for easy installation
- • **Efficiency at Its Best:** Bypass feature ensures smooth operation
- • **Precision Pressure Control:** Preset at 40 PSI for consistent operation

## Overview

The CSV12540-3 Pump Control Valve is a high-performance valve designed for efficient fluid control, featuring a maximum flow rate of 50 GPM and a preset pressure setting of 40 PSI. Its female threaded design ensures easy installation, making it a reliable choice for various applications.

## Description

The CYCLE STOP VALVE models CSV125 is a patented pump control valve that automatically adjusts pump output to match variable flow requirements. Downstream of the CSV1.25, pressure remains constant as long as demand on the system is between 1 and 25 gpm for the 1” and 2-50 gpm for the 1 1/4”. As flow rates vary, the valve inside the CSV125 moves closer to or farther away from the valve seat. This enables the pressure downstream of the CSV125 to remain constant regardless of flow.

## Features

- Max GPM: 50 GPM
- Preset Pressure Setting: 40 PSI
- Female thread

## Product Details

- **Brand:** CYCLE STOP VALVES
- **Exterior Finish:** Brass
- **Inlet Connection Type:** threaded
- **Global Trade Identification Number:** 00743167975070
- **Manufacturer:** Cycle Stop Valves
- **UPC:** 743167975070 755717495877

## Images

![CSV12540-3 Pump Control Valve, 1-1/4" Threaded, 40 psi, 3 gpm Bypass - Image 1](https://m.media-amazon.com/images/I/51SNFyynwuL.jpg)

## Questions & Answers

**Q: So how do i choose what psi valve i need? I have a Goulds 1hp 10gpm pump and a 44gl pressure tank and 40/60 switch what psi valve do i need (40,50,60)**
A: This is an excellent valve which increases the life of the pump motor by eliminating short cycles.    The selection of the switch is based on the performance of the pump installation.   If the pump can easily reach 60 PSI in a short period of time, then select a 60.   However, if it takes a long time for the pump to reach 50 PSI then select a 40 PSI model.  In general, the selection of the valve is based on the pump cut-off pressure as determined by the pressure switch setting. The valve size should be less than then cut off pressure setting.  The way the valve works is that it is fully open until the pressure exceeds the model rating, and then it closes to 1 gallon per minute until the pressure reaches the pump switch OFF pressure setting. So the selection is not based on the pump size and pressure tank, but rather on how your system performs.  Hope this helps.. SCADAbob

**Q: Since this israed at 50psi, should I use a 30-50 psi or 40 to 60 psi switch?**
A: personal preference...I'd use a 40-60...or a 30 50 and adjust it up to start at 35 and shut offf at 55....either way is fine.  Be sure to adjust the pre-charge in your pressure tank accordingly..

**Q: What is the PSI loss\impact for using this?**
A: Been using these devices for years ...you will not notice any psi decrease. If anything you will see a more constant higher pressure because pump will not cycle ...they work ....

**Q: So how do i choose what psi valve i need? I have a Goulds 1hp 10gpm pump and a 44gl pressure tank and 40/60 switch what psi valve do i need (40,50,60)**
A: you need a csv12550-1 50psi.  unless you a just your pressure switch up to 45/65, then you can use the csv12560-1 60psi valve. go to cycle stop valve. com for the installation diagram, the valve has to be the first thing after the pump.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Technology
*by S***B on August 23, 2017*

This is probably the only solution to stop pump short cycling. It also saves more money compared to traditional installations with large bladder tanks since it only requires a two gallon bladder tank. The most important consideration is determining the correct cut-out pressure. For example, if you select a 40 PSI cut-out, but your pump will only deliver a maximum pressure of 35 PSI, then the valve will not work properly. If your pump will develop a maximum pressure of 45 PSI, then a 40 PSI Cycle Stop Valve would work fine.It will extend the life of your pump as an added bonus by significantly reducing the chance of motor thermal overload.SCADAbob

### ⭐⭐⭐⭐ Four Stars
*by F***K on August 2, 2018*

Works as advertised Good product!

### ⭐⭐⭐⭐⭐ Best shower times of my life!
*by N***. on January 9, 2019*

CSV - Cycle stop valve. Literally stops the cycling on and off of my pump. You would need this if you want constant pressure, and if you want your pump to cycle on and off a lot lesser than normal. Installation is pretty much simple, if there are leaks just need to add more rounds of teflon tape to the threads. I had 21 rolls on each ends and not have a single drip.

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**Shop now:** [https://www.desertcart.co.ke/products/174886653-csv12540-3-pump-control-valve-1-1-4-threaded-40](https://www.desertcart.co.ke/products/174886653-csv12540-3-pump-control-valve-1-1-4-threaded-40)

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-03-04*