---
product_id: 447488187
title: "Happybuy Air-Operated Double Diaphragm Pump 1 inch Inlet Outlet Aluminum 35 GPM Max 120PSI, Nitrile Diaphragm, QBY4-25L-1inch-35"
brand: "happybuy"
price: "723.32 DT"
currency: TND
in_stock: false
url: https://www.desertcart.tn/products/447488187-happybuy-air-operated-double-diaphragm-pump-1-inch-inlet-outlet
store_origin: TN
region: Tunisia
---

# Aluminum alloy corrosion-proof housing 35 GPM max flow rate 120 PSI max pressure Happybuy Air-Operated Double Diaphragm Pump 1 inch Inlet Outlet Aluminum 35 GPM Max 120PSI, Nitrile Diaphragm, QBY4-25L-1inch-35

**Brand:** happybuy
**Price:** 723.32 DT
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Elevate your fluid handling game with industrial-grade power and precision!

## Quick Answers

- **What is this?** Happybuy Air-Operated Double Diaphragm Pump 1 inch Inlet Outlet Aluminum 35 GPM Max 120PSI, Nitrile Diaphragm, QBY4-25L-1inch-35 by happybuy
- **How much does it cost?** 723.32 DT with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/447488187-happybuy-air-operated-double-diaphragm-pump-1-inch-inlet-outlet)

## 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

- • **Powerful 35 GPM Flow:** Keep your operations running at peak speed with a robust 35 gallons per minute capacity.
- • **High-Pressure Performance:** Handles up to 120 PSI to tackle demanding fluid transfer tasks effortlessly.
- • **Advanced Nitrile Diaphragms:** Premium double nitrile diaphragms ensure chemical resistance and extended pump life.
- • **Smooth & Efficient Air Valve:** Low pulsation stainless steel air valve minimizes downtime and maximizes operational efficiency.
- • **Built to Last with Aluminum Alloy:** Experience unmatched durability and corrosion resistance for long-term industrial use.

## Overview

The Happybuy Air-Operated Double Diaphragm Pump features a 1-inch inlet/outlet, durable aluminum alloy housing, and premium nitrile diaphragms. It delivers up to 35 GPM flow rate and 120 PSI pressure, designed for corrosion resistance and smooth air-operated performance across diverse industrial applications.

## Description

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

## 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 |
|---------------|-------|
| ASIN | B07KSYF7YB |
| ASIN  | B07KSYF7YB |
| Brand Name | Happybuy |
| Color | Black |
| Customer Reviews | 4.0 4.0 out of 5 stars (194) |
| Customer reviews | 4.0 4.0 out of 5 stars (194) |
| Date First Available  | 22 June 2022 |
| Flow Rate | 35 Gallons Per Minute |
| Global Trade Identification Number | 00789458202135 |
| Included Components | 1 x Air-Operated Double Diaphragm Pump, 1 x User Manual |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions L x W x H | 19.8L x 17.8W x 83.8H centimeters |
| Item Type Name | Diaphragm Pump |
| Item Weight | 19 Pounds |
| Item model number  | QBY4-25L |
| Manufacturer | Happybuy |
| Manufacturer  | Happybuy |
| Manufacturer Part Number | diaphragm pump |
| Material Type | Aluminum |
| Maximum Lifting Height | 275.6 Feet |
| Model Number | QBY4-25L |
| Number of Items | 1 |
| Power Source | Air-Operated |
| Product Dimensions  | 19.81 x 17.78 x 83.82 cm; 8.62 kg |
| Product Style | Diaphragm |
| Specific Uses For Product | commercial_use, construction, cooking, food_storage, gardening, home_improvement_project, lawn_care, water_treatment |
| UPC | 789458202135 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Happybuy
- **Colour:** Black
- **Material:** Aluminum
- **Product dimensions:** 19.8L x 17.8W x 83.8H centimeters
- **Style:** Diaphragm

## Images

![Happybuy Air-Operated Double Diaphragm Pump 1 inch Inlet Outlet Aluminum 35 GPM Max 120PSI, Nitrile Diaphragm, QBY4-25L-1inch-35 - Image 1](https://m.media-amazon.com/images/I/71I0xqMpiZL.jpg)

## Available Options

This product comes in different **Size** options.

## 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.

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-10-21*