---
product_id: 419219727
title: "Happybuy Air-Operated Double Diaphragm Pump 1/2 inch Inlet and Outlet 304 Stainless Steel 9 GPM Max 115PSI Corrosion-Proof Nitrile Diaphragm Air Pump Chemical Industrial Use, QBK-15P-1/2 inch-12"
brand: "happybuy"
price: "€ 26.30"
currency: EUR
in_stock: false
reviews_count: 5
url: https://www.desertcart.fr/products/419219727-happybuy-air-operated-double-diaphragm-pump-1-2-inch-inlet
store_origin: FR
region: France
---

# 115 PSI max air pressure 9 GPM max flow rate 304 stainless steel corrosion-proof housing Happybuy Air-Operated Double Diaphragm Pump 1/2 inch Inlet and Outlet 304 Stainless Steel 9 GPM Max 115PSI Corrosion-Proof Nitrile Diaphragm Air Pump Chemical Industrial Use, QBK-15P-1/2 inch-12

**Brand:** happybuy
**Price:** € 26.30
**Availability:** ❌ Out of Stock

## Summary

> ⚙️ Pump up your productivity with corrosion-proof power!

## Quick Answers

- **What is this?** Happybuy Air-Operated Double Diaphragm Pump 1/2 inch Inlet and Outlet 304 Stainless Steel 9 GPM Max 115PSI Corrosion-Proof Nitrile Diaphragm Air Pump Chemical Industrial Use, QBK-15P-1/2 inch-12 by happybuy
- **How much does it cost?** € 26.30 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/419219727-happybuy-air-operated-double-diaphragm-pump-1-2-inch-inlet)

## Best For

- happybuy enthusiasts

## Why This Product

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

## Key Features

- • **Temperature Tough:** Operates reliably up to 150°F (66°C), built to withstand demanding environments without compromise.
- • **Powerful Performance:** Delivers up to 9 gallons per minute with a max pressure of 115 PSI to keep your operations running smoothly.
- • **Unmatched Durability:** Premium 304 stainless steel body resists corrosion and leaks for long-term industrial reliability.
- • **Precision Air Control:** Advanced low-pulsation air valve ensures efficient, rapid switching and minimal downtime.
- • **Versatile Fluid Handling:** Handles everything from waste oil to detergents and fuels, perfect for diverse industrial applications.

## Overview

The Happybuy Air-Operated Double Diaphragm Pump combines robust 304 stainless steel construction with premium PTFE diaphragms to deliver up to 9 GPM flow at 115 PSI. Designed for industrial versatility, it handles a wide range of fluids including chemicals, oils, and detergents, while its advanced air valve system ensures smooth, low-pulsation operation and minimal downtime. Engineered for durability and high-temperature resistance, this pump is a reliable choice for professionals demanding efficiency and longevity.

## Description

diaphragm pump air operated oil pump waste oil pump diaphram pump camper water pump self priming pump pressure water pump on demand water pump water feature pump air diaphragm pump diaphragm pumps air operated diaphragm pump wilden diaphragm pump shurflo pump diaphragm

Review: Good - The pump works very good I like it
Review: SIZE THAT I NEED , - USE IT TWO TIMES THEN IT WOULD WORK ANY MORE

## Features

- Premium Double PTFE Diaphragms: Our air-operated double diaphragm pump adopts PTFE diaphragms, durable, corrosion-proof, and long-lasting. Max. Temperature: 150 ℉/66 ℃; Max. Pressure: 115 psi; Max. Flow Rate：8.8 GPM; Max Head Lift：226.4 ft/69 m.
- Sturdy & Leak-proof Construction: The diaphragm pump housing is made of stainless steel material, bolted against leakage, sturdy, and corrosion-proof for long-time use.
- Excellent Air-operated Performance: Inlet/Outlet Port Size: 1/2 inch; Air Inlet Size: FNPT 1/4 inch. A high-quality glyd ring, the double-acting sealing, strengthens air performance.
- Unique & Professional Designs: Our double diaphragm pump features an externally available air distribution system. The modular air valve is stainless. This low pulsation air valve provides smooth and rapid changeover for increased efficiency and minimizes downtime.
- Wide Applications: This diaphragm pump can handle various fluids, such as waste oil, alcohol, hydraulic fluid, gasoline, diesel, detergent, drink, and so on. It is widely used in many industries, such as petroleum, metallurgy, mining, coating, printing, water treatment, and automobile.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07D36RV13 |
| Brand | Happybuy |
| Brand Name | Happybuy |
| Color | Silver |
| Colour | Silver |
| Customer Reviews | 3.4 out of 5 stars 44 Reviews |
| Included Components | No |
| Item Type Name | Happybuy 304 Stainless Steel 12 GPM Max 115PSI for Chemical Industrial Use |
| Item Weight | 3.58 kg |
| Item height | 10.2 inches |
| Item weight | 3.58 kg |
| Manufacturer | Happybuy |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Model Number | Air-Operated Double Diaphragm Pump |
| Power Source | Air-Operated |
| Power source | Air-Operated |
| Product Style | Diaphragm |
| Style | Diaphragm |
| UPC | 601707141449 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Happybuy
- **Colour:** Silver
- **Material:** Stainless Steel
- **Style:** Diaphragm
- **Power source:** Air-Operated

## Images

![Happybuy Air-Operated Double Diaphragm Pump 1/2 inch Inlet and Outlet 304 Stainless Steel 9 GPM Max 115PSI Corrosion-Proof Nitrile Diaphragm Air Pump Chemical Industrial Use, QBK-15P-1/2 inch-12 - Image 1](https://m.media-amazon.com/images/I/712RHWoSx+L.jpg)
![Happybuy Air-Operated Double Diaphragm Pump 1/2 inch Inlet and Outlet 304 Stainless Steel 9 GPM Max 115PSI Corrosion-Proof Nitrile Diaphragm Air Pump Chemical Industrial Use, QBK-15P-1/2 inch-12 - Image 2](https://m.media-amazon.com/images/I/7140yRtNesL.jpg)
![Happybuy Air-Operated Double Diaphragm Pump 1/2 inch Inlet and Outlet 304 Stainless Steel 9 GPM Max 115PSI Corrosion-Proof Nitrile Diaphragm Air Pump Chemical Industrial Use, QBK-15P-1/2 inch-12 - Image 3](https://m.media-amazon.com/images/I/71P3XPqqfcL.jpg)
![Happybuy Air-Operated Double Diaphragm Pump 1/2 inch Inlet and Outlet 304 Stainless Steel 9 GPM Max 115PSI Corrosion-Proof Nitrile Diaphragm Air Pump Chemical Industrial Use, QBK-15P-1/2 inch-12 - Image 4](https://m.media-amazon.com/images/I/71VtaCb9BNL.jpg)
![Happybuy Air-Operated Double Diaphragm Pump 1/2 inch Inlet and Outlet 304 Stainless Steel 9 GPM Max 115PSI Corrosion-Proof Nitrile Diaphragm Air Pump Chemical Industrial Use, QBK-15P-1/2 inch-12 - Image 5](https://m.media-amazon.com/images/I/71lqIscFQDL.jpg)

## Questions & Answers

**Q: Will this pump go on neutral when you close the valves?**
A: This pump is pneumatic. The material is pushed in one direct when the air valve is turned on.

**Q: Where woukd i find a rebuild  kit for this pump if i needed one? Any part numbers or kits?**
A: I am having the same problem no parts available as far as I can see I have been searching for hours and still no luck.

**Q: Do you have 3" or 4"**
A: 2”

**Q: Got anything rated 200f? Also gan this pump ethanol**
A: Sorry I do not, I only purchased one of these.  I also don't know if anyone has made a pump out of GaN, gallium nitride. There less expensive materials that would be compatible with ethanol.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good
*by P***L on 26 February 2021*

The pump works very good I like it

### ⭐ SIZE THAT I NEED ,
*by M***E on 30 January 2024*

USE IT TWO TIMES THEN IT WOULD WORK ANY MORE

### ⭐⭐⭐⭐⭐ Fonctionne très bien
*by R***T on 20 December 2021*

Bon rendement

## Frequently Bought Together

- Happybuy Air-Operated Double Diaphragm Pump, 1/2 in Inlet & Outlet, Stainless Steel Body, 8.8 GPM & Max 120PSI, PTFE Diaphragm Pneumatic Transfer Pump for Petroleum, Diesel, Oil & Low Viscosity Fluids
- Primefit R1401G Mini Air Regulator with steel-Protected Gauge, 60-Scfm At 100-Psi, 1/4" Npt

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-25*