---
product_id: 94661118
title: "Happybuy Double Diaphragm Pump 40GPM Nitrile Rubber Diaphragm"
brand: "happybuy"
price: "R$5711"
currency: BRL
in_stock: null
reviews_count: 8
category: "Happybuy"
url: https://www.desertcart.com.br/products/94661118-happybuy-double-diaphragm-pump-40gpm-nitrile-rubber-diaphragm
store_origin: BR
region: Brazil
---

# 150℉ max temperature 40 GPM max flow rate 120 psi max pressure Happybuy Double Diaphragm Pump 40GPM Nitrile Rubber Diaphragm

**Brand:** happybuy
**Price:** R$5711
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Pump up your productivity with industrial-grade precision!

## Quick Answers

- **What is this?** Happybuy Double Diaphragm Pump 40GPM Nitrile Rubber Diaphragm by happybuy
- **How much does it cost?** R$5711 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/94661118-happybuy-double-diaphragm-pump-40gpm-nitrile-rubber-diaphragm)

## 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

- • **Compact Yet Powerful Design:** 1-inch ports with a max head lift of 275.6 ft combine portability with industrial-grade power.
- • **Robust Aluminum Alloy Housing:** Leak-proof, sturdy construction ensures reliability and longevity in demanding environments.
- • **Versatile Fluid Compatibility:** Handles everything from waste oil to detergents, making it indispensable across multiple industries.
- • **Durable Double Nitrile Diaphragms:** Engineered for corrosion resistance and long-lasting performance under tough industrial conditions.
- • **Precision Air-Operated Efficiency:** Advanced stainless modular air valve delivers smooth, low-pulsation operation for maximum uptime.

## Overview

The Happybuy Double Diaphragm Pump features premium nitrile diaphragms and a corrosion-proof aluminum housing, delivering up to 40 GPM flow at 120 psi and 150℉. Its advanced air-operated system ensures smooth, efficient pumping across diverse fluids, making it a versatile choice for professionals in chemical, petroleum, and water treatment industries.

## Description

Happybuy Air-Operated Double Diaphragm Pump 1 inch Inlet Outlet Aluminum 35 GPM Max 120PSI for Chemical Industrial Use, QBY4-25L-1inch-35

Review: Pump - Worked very well.
Review: Worst pump I’ve ever used. - Worked for water barely and then when I tried oil it didn’t work at all. Went out and spent 2k on a wilden pump and have had not a single problem. Kept getting air locked. Waisted time and money on this piece of crap. Go buy name brand and save yourself the headache.

## Features

- Premium Double Nitrile Diaphragms: Our air-operated double diaphragm pump adopts nitrile diaphragms, durable, corrosion-proof, and long-lasting. Max. Temperature: 150 ℉/66 ℃; Max. Pressure: 120 psi; Max. Flow Rate: 39.6 GPM; Max Head Lift：275.6 ft/84 m.
- Sturdy & Leak-proof Construction: The diaphragm pump housing is made of aluminum alloy material, bolted against leakage, sturdy, and corrosion-proof for long-time use.
- Excellent Air-operated Performance: Inlet/Outlet Port Size: 1 inch; Air Inlet Size: FNPT 1/2 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 |
|---------------|-------|
| Brand | Happybuy |
| Color | Black |
| Material | Aluminum |
| Power Source | Air-Operated |
| Product Dimensions | 7.8"L x 7"W x 33"H |
| Style | Diaphragm |

## Product Details

- **Brand:** Happybuy
- **Color:** Black
- **Material:** Aluminum
- **Style:** Diaphragm
- **Product Dimensions:** 7.8"L x 7"W x 33"H
- **Power Source:** Air-Operated
- **Item Weight:** 19 Pounds
- **Maximum Flow Rate:** 35 Gallons Per Minute
- **Maximum Lifting Height:** 275.59 Feet
- **Global Trade Identification Number:** 00789458202135

## Images

![Happybuy Double Diaphragm Pump 40GPM Nitrile Rubber Diaphragm - Image 1](https://m.media-amazon.com/images/I/711OApnhbqL.jpg)
![Happybuy Double Diaphragm Pump 40GPM Nitrile Rubber Diaphragm - Image 2](https://m.media-amazon.com/images/I/71I0xqMpiZL.jpg)
![Happybuy Double Diaphragm Pump 40GPM Nitrile Rubber Diaphragm - Image 3](https://m.media-amazon.com/images/I/71oRuhBubRL.jpg)
![Happybuy Double Diaphragm Pump 40GPM Nitrile Rubber Diaphragm - Image 4](https://m.media-amazon.com/images/I/71u-+nKmGnL.jpg)
![Happybuy Double Diaphragm Pump 40GPM Nitrile Rubber Diaphragm - Image 5](https://m.media-amazon.com/images/I/71wnGwUvp3L.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: rebuild kit for qpk15?**
A: Just because you put a question mark at the end of a statement doesn't make it a question. I recommend looking at previously answered questions. This is a cheap Chinese clone of an industrial pump. If you need rebuilt kits, buy a pump from a pump supply company.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Pump
*by O***A on April 23, 2025*

Worked very well.

### ⭐ Worst pump I’ve ever used.
*by A***N on August 22, 2022*

Worked for water barely and then when I tried oil it didn’t work at all. Went out and spent 2k on a wilden pump and have had not a single problem. Kept getting air locked. Waisted time and money on this piece of crap. Go buy name brand and save yourself the headache.

### ⭐⭐⭐⭐⭐ Pump ran fine for 6 months then failed
*by F***V on April 3, 2024*

Pump ran fine for 6 months then failed, no product support or warranty. Sold by Amazon but Amazon says not supported.

## Frequently Bought Together

- Happybuy Air-Operated Double Diaphragm Pump 1 inch Inlet Outlet Aluminum 35 GPM Max 120PSI, Nitrile Diaphragm, QBY4-25L-1inch-35
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**Shop now:** [https://www.desertcart.com.br/products/94661118-happybuy-double-diaphragm-pump-40gpm-nitrile-rubber-diaphragm](https://www.desertcart.com.br/products/94661118-happybuy-double-diaphragm-pump-40gpm-nitrile-rubber-diaphragm)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-29*