---
product_id: 35687965
title: "Brass In-Line Check Valve, 1/2 Inch IPS Threaded Connection, Stainless Steel Spring, 20401LF"
brand: "eastman"
price: "AR$38704"
currency: ARS
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.ar/products/35687965-brass-in-line-check-valve-1-2-inch-ips-threaded
store_origin: AR
region: Argentina
---

# 1/2 inch IPS threaded connection Stainless steel spring, 5-200 PSI range Solid brass body for durability Brass In-Line Check Valve, 1/2 Inch IPS Threaded Connection, Stainless Steel Spring, 20401LF

**Brand:** eastman
**Price:** AR$38704
**Availability:** ✅ In Stock

## Summary

> 🚰 Lock in flawless flow, ditch backflow woes!

## Quick Answers

- **What is this?** Brass In-Line Check Valve, 1/2 Inch IPS Threaded Connection, Stainless Steel Spring, 20401LF by eastman
- **How much does it cost?** AR$38704 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/35687965-brass-in-line-check-valve-1-2-inch-ips-threaded)

## Best For

- eastman enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Heavy-duty brass construction ensures corrosion resistance and long-term reliability.
- • **Pressure-Perfect:** Operates smoothly from a minimum 5 PSI to a robust 200 PSI working pressure.
- • **Seamless Integration:** Standard 1/2 inch IPS threading fits effortlessly into your existing plumbing setup.
- • **Maintenance-Free Flow:** Engineered for hassle-free, continuous operation—set it and forget it.
- • **Versatile Application:** Ideal for irrigation, pump systems, and water lines—professional-grade performance.

## Overview

The Eastman Brass In-Line Check Valve (1/2 inch IPS) features a durable brass body and stainless steel spring designed to prevent backflow in plumbing systems. Rated for 5 to 200 PSI, it offers maintenance-free operation and compatibility with standard plumbing connections, making it a reliable choice for irrigation, pump, and water line applications.

## Description

Product Description Simplify your plumbing projects with the Eastman in-line check valve. Constructed from durable brass, this valve is designed to help prevent the backflow of fluids in irrigation, water pump, and general plumbing systems. It features 1/2 inch IPS threaded connections on both ends, making it compatible with standard piping setups. The stainless steel spring opens with a minimum pressure of 5 PSI and supports a maximum working pressure of 200 PSI. Designed for maintenance-free use, this compact valve helps promote smooth and efficient water flow in residential or commercial systems. From the Manufacturer This 1/2" IPS Brass In-Line Check Valve is designed to prevent water from traveling back to the source. This check valve is constructed from heavy-duty brass for durability and strength. This valve is compliant with the Safe Drinking Water Act.

Review: Great product - I use this check valve as part of my hot water recirculation system, and so far it has been working well.
Review: Quality - Worked as advertised. Would recommend

## Features

- IN-LINE CHECK VALVE: Designed to help prevent backflow of fluids in water supply lines and other plumbing systems
- DESIGN: Features 1 in. IPS threaded inlet and outlet for compatibility with standard plumbing systems
- DURABLE: Built with a solid brass body and stainless steel spring for long-lasting use
- RATED PERFORMANCE: Minimum 5 PSI to open; rated for up to 200 PSI working pressure
- APPLICATION: Suitable for irrigation, pump, or water line applications; designed for maintenance-free operation

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Eastman |
| Exterior Finish | Stainless Steel , Brass |
| Inlet Connection Size | 0.5 Inches |
| Inlet Connection Type | Threaded |
| Item dimensions L x W x H | 1.8 x 1.25 x 1.25 inches |
| Material | Stainless Steel |

## Product Details

- **Brand:** Eastman
- **Exterior Finish:** Stainless Steel,Brass
- **Inlet Connection Size:** 0.5 Inches
- **Inlet Connection Type:** Threaded
- **Item dimensions L x W x H:** 1.8 x 1.25 x 1.25 inches
- **Material:** Stainless Steel
- **Maximum Operating Pressure:** 200 Pound per Square Inch
- **Number of Ports:** 2
- **Outlet Connection Size:** 0.5 Inches
- **Outlet Connection Type:** MNPT

## Images

![Brass In-Line Check Valve, 1/2 Inch IPS Threaded Connection, Stainless Steel Spring, 20401LF - Image 1](https://m.media-amazon.com/images/I/61LLZPEBMNL.jpg)

## Questions & Answers

**Q: Es para uso horizontal o vertical?**
A: In-line check valves can be installed horizontally or vertically.

**Q: What is the threading if i wanted to attach brass connectors to either side?**
A: Thank you for your question on the Brass In-Line. The threading is 1/2" FIP.

**Q: Will this work with oil?**
A: Can't say for sure, but I would say it depends on things like whether the oil is clean and how hot the oil is.  I would think that it would work with clean, ambient temperature
 oil, but that does not take into account what the seals are made of and what kind of oil you're talking about.  Some oils will degrade the seals.  Not much help, but something to think about.

**Q: Max water temp and is the spring inside stainless steel?**
A: In the industrial world,  low temp is 180f or less, High temp is 181- Steam,   so when someone says low temp,  you can use this idem.  I personally have used them on my boiler returns without a problem,  just make sure you at 5ft of head for your circulator pump,

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product
*by R***N on September 18, 2025*

I use this check valve as part of my hot water recirculation system, and so far it has been working well.

### ⭐⭐⭐⭐⭐ Quality
*by H***L on October 10, 2025*

Worked as advertised. Would recommend

### ⭐⭐⭐⭐⭐ Good quality and as expected.
*by L***S on August 11, 2025*

Cracking pressure in description is accurate, I can barely blow it open if I blow extremely hard. Did not leak at all, and the valve seated well. Good quality. Correct size.

## Frequently Bought Together

- EZ-FLO Brass In-Line Check Valve, 1/2 Inch IPS, Stainless Steel Spring, 20401LF
- 2 Gallon Accumulator Expansion Tank With Wall Mount Bracket 1/2" Female NPT

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-02-11*