---
product_id: 48847004
title: "PRESSURE RELIEF VALVE 3/4\" LOOSE NUT TO 1/2\" BSP 6 BAR 311501"
brand: "caleffi"
price: "KSh12582"
currency: KES
in_stock: true
reviews_count: 8
category: "Caleffi"
url: https://www.desertcart.co.ke/products/48847004-pressure-relief-valve-3-4-loose-nut-to-1-2
store_origin: KE
region: Kenya
---

# 3/4" to 1/2" BSP fitting Install in under 20 mins 6 Bar max pressure PRESSURE RELIEF VALVE 3/4" LOOSE NUT TO 1/2" BSP 6 BAR 311501

**Brand:** caleffi
**Price:** KSh12582
**Availability:** ✅ In Stock

## Summary

> 🔧 Keep your system safe and stress-free with Caleffi’s pressure relief power!

## Quick Answers

- **What is this?** PRESSURE RELIEF VALVE 3/4" LOOSE NUT TO 1/2" BSP 6 BAR 311501 by caleffi
- **How much does it cost?** KSh12582 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/48847004-pressure-relief-valve-3-4-loose-nut-to-1-2)

## Best For

- caleffi enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Quality:** CE certified with 4.6-star rating from 130+ pros who demand performance
- • **Compact & Durable:** Robust metal build in a space-saving 3/4" to 1/2" BSP format
- • **Cost-Effective Upgrade:** Replace faulty valves without full assembly overhaul—save time and money
- • **Effortless Installation:** Quick-fit design requiring only one adjustable wrench—no hassle, no fuss
- • **Precision Pressure Control:** Reliable 6 Bar pressure relief for ultimate system safety

## Overview

The Caleffi Pressure Relief Valve 311501 is a CE-certified, metal valve designed to safely regulate pressure up to 6 Bars. Featuring a 3/4" loose nut to 1/2" BSP fitting, it offers a quick, tool-minimal installation in under 20 minutes. Highly rated by professionals, it’s the go-to cost-effective replacement valve that ensures plumbing systems stay secure and efficient.

## Description

Caleffi Pressure Relief Valve 3 4 Loose Nut To 1 2 Bsp 6 Bar 311501

Review: Quick and easy to fit direct replacement. - Genuine quality item. Caleffi Pressure Relief Valve 6-Bar. Ensure your water is off at the main stopcock and the pressure has released from your system - we opened the cold taps to ensure this. plenty of towels at the ready around the area "just in case" but there was only a minor trickle when I removed the original defective unit. Cleaned the surface of the pipework to make sure the 2 would create a seal. Joined and tightened on both sides. Gently brought the water back up to normal pressure and checked for [no] drips. Job done! Allow an hour, but it could be done within 20 mins. Only One tool required for the job. I used an adjustable Wide-Jaw wrench/spanner similar to this one https://amzn.eu/d/j3FKatZ As a Prime member it arrived the same day!
Review: Cost effective solution - Good solution to replace failed valve without having to change the full valve assembly

## Features

- CALEFFI PRESSURE RELIEF VALVE 3 4 LOOSE NUT TO 1 2 BSP 6 BAR 311501
- Brand : Caleffi
- Product type: VALVE

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01GFTLTG8 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 25,417 in DIY & Tools ( See Top 100 in DIY & Tools ) 34 in Water Heaters & Parts |
| Certification | CE |
| Customer Reviews | 4.6 4.6 out of 5 stars (132) |
| Date First Available | 1 Jun. 2016 |
| Item Package Quantity | 1 |
| Item Weight | 180 g |
| Item model number | 311501 |
| Manufacturer | Caleffi |
| Material | Metal |
| Maximum Pressure | 6 Bars |
| Package Dimensions | 13.1 x 10.5 x 7.6 cm; 180 g |
| Part Number | 311501 |
| Size | 3/4 inches |

## Product Details

- **Brand:** Caleffi
- **Exterior finish:** Stainless Steel
- **Inlet connection size:** 1/2 Inches
- **Inlet connection type:** Female Iron Pipe
- **Manufacturer:** Caleffi
- **Material:** Metal
- **Maximum operating pressure:** 6 Bars
- **Number of ports:** 6
- **Outlet connection type:** BSPT
- **Specification met:** CE

## Images

![PRESSURE RELIEF VALVE 3/4" LOOSE NUT TO 1/2" BSP 6 BAR 311501 - Image 1](https://m.media-amazon.com/images/I/4124hGDsxEL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quick and easy to fit direct replacement.
*by A***S on 24 June 2025*

Genuine quality item. Caleffi Pressure Relief Valve 6-Bar. Ensure your water is off at the main stopcock and the pressure has released from your system - we opened the cold taps to ensure this. plenty of towels at the ready around the area "just in case" but there was only a minor trickle when I removed the original defective unit. Cleaned the surface of the pipework to make sure the 2 would create a seal. Joined and tightened on both sides. Gently brought the water back up to normal pressure and checked for [no] drips. Job done! Allow an hour, but it could be done within 20 mins. Only One tool required for the job. I used an adjustable Wide-Jaw wrench/spanner similar to this one https://amzn.eu/d/j3FKatZ As a Prime member it arrived the same day!

### ⭐⭐⭐⭐⭐ Cost effective solution
*by J***. on 17 June 2025*

Good solution to replace failed valve without having to change the full valve assembly

### ⭐⭐⭐⭐⭐ Does the job
*by A***R on 15 July 2025*

Arrived promptly and straightforward to fit. Had worked reliably for over a year now.

## Frequently Bought Together

- CALEFFI PRESSURE RELIEF VALVE 3/4" LOOSE NUT TO 1/2" BSP 6 BAR 311501
- Altecnic Pressure and Temperature Relief Valve 7Bar 1/2 Tpr15
- Caleffi - 22mm Inlet Control Multibloc Valve Group 533002CST

---

## 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.co.ke/products/48847004-pressure-relief-valve-3-4-loose-nut-to-1-2](https://www.desertcart.co.ke/products/48847004-pressure-relief-valve-3-4-loose-nut-to-1-2)

---

*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-01-29*