Midland Industries
Midland Lead-Free Check Valve (FIP)
- Availability:
- Allow 2-3 Days to Ship
- Weight:
- 0.00 LBS
Description
Midland Lead-Free Check Valve (FIP)
Midland Lead-Free Check Valves provide automatic backflow prevention in threaded plumbing systems by allowing flow in one direction and closing when reverse flow occurs.
Manufactured from durable lead-free brass, these inline valves feature female NPT threaded connections on both ends for straightforward installation with compatible male-threaded piping components in potable water, residential, commercial, and light industrial applications.
Product Highlights
- Lead-free brass construction
- Female NPT (FIP) threaded connections
- Automatically prevents reverse flow
- Compact inline body design
- Suitable for potable water systems
- Corrosion-resistant brass body
- Helps protect pumps, fixtures, and downstream equipment
- Requires no manual operation
- Available in multiple nominal pipe sizes
- Manufactured by Midland Industries
Technical Specifications
| Product Type | Check Valve |
|---|---|
| Brand | Midland |
| Body Material | Lead-Free Brass |
| Connection Type | FIP x FIP |
| Thread Type | Female NPT |
| Operation | Automatic |
| Primary Function | Reverse Flow Prevention |
| Installation Style | Inline |
| Potable Water Use | Yes |
| Available Sizes | Multiple Nominal Pipe Sizes |
| Typical Applications | Potable Water, Residential, Commercial, and Light Industrial Plumbing Systems |
Check Valve Configuration
Female NPT Inlet
The inlet accepts a compatible male NPT pipe, nipple, fitting, valve, or equipment connection.
Automatic Check Mechanism
The internal mechanism opens during forward flow and closes automatically when flow stops or reverses.
Female NPT Outlet
The opposite threaded end continues the piping run to downstream fixtures, equipment, valves, or other compatible components.
Construction Details
Midland Lead-Free Check Valves are manufactured from corrosion-resistant lead-free brass for dependable strength and long service life in compatible plumbing systems.
The internal check mechanism responds automatically to system flow, opening during normal forward flow and closing when reverse flow occurs to help prevent unwanted backflow.
Female NPT threaded connections on both ends provide straightforward installation and servicing with compatible male-threaded piping components.
Why Use a Check Valve?
Automatic Backflow Prevention
- Allows flow in one direction
- Automatically closes during reverse flow
- Helps protect downstream components
- Requires no manual operation
- Useful throughout water distribution systems
Threaded Installation
- Female NPT connections
- Connects to compatible male-threaded components
- No soldering required
- Convenient for maintenance and replacement
- Compact inline configuration
Typical Applications
Plumbing & Water Systems
- Potable water piping
- Residential plumbing
- Commercial plumbing
- Water distribution systems
- General threaded piping systems
Equipment Protection
- Pumps
- Fixtures
- Water equipment
- Mechanical systems
- Other downstream plumbing components
Flow Direction
Install the valve so system flow follows the directional arrow marked on the valve body.
Correct orientation is required for the internal mechanism to open during forward flow and close when reverse flow occurs.
Threaded Installation
Use an appropriate thread sealant or PTFE tape on compatible male NPT connections according to the application requirements.
Verify nominal pipe size, thread compatibility, pressure, temperature, media, and installation orientation before placing the valve into service.

Our plumbing specialists can help review your pipe size, FIP connections, flow direction, potable water requirements, pressure, temperature, and installation conditions before you order.
Email the GetPipe.com Team Visit Quick SupportFrequently Asked Questions
What does a check valve do?
A check valve allows flow in the intended direction and automatically closes when reverse flow occurs.
What material is this valve made from?
It is manufactured from lead-free brass.
What type of connections does it use?
It uses female NPT threaded connections on both ends.
What does FIP mean?
FIP means Female Iron Pipe and refers to an internally threaded connection designed to accept a compatible male-threaded component.
Does the valve require manual operation?
No. The internal check mechanism operates automatically according to flow direction.
Can this valve be used for potable water?
Yes. The supplied product information identifies lead-free construction and suitability for potable water systems.
Does installation direction matter?
Yes. Install the valve so system flow matches the directional arrow marked on the valve body.
What can a check valve help protect?
The supplied product information identifies pumps, fixtures, and downstream plumbing equipment.
Are multiple sizes available?
Yes. The supplied product information identifies multiple nominal pipe sizes.
What should I verify before ordering?
Confirm nominal pipe size, FIP thread compatibility, flow direction, pressure, temperature, media compatibility, and applicable plumbing requirements.
Important Ordering & Installation Notes
- This listing is for Midland Lead-Free Check Valves with FIP x FIP threaded connections.
- Verify the required nominal pipe size before ordering.
- Confirm mating piping components use compatible male NPT threads.
- Install according to the directional flow arrow marked on the valve body.
- Correct flow orientation is required for proper check-valve operation.
- Use an appropriate thread sealant or PTFE tape on threaded connections.
- Inspect all threads for damage, debris, or contamination before installation.
- Start threaded connections carefully to help prevent cross-threading.
- Avoid excessive tightening that could damage the valve body or connected piping.
- Lead-free brass construction is intended for compatible potable water applications.
- Verify pressure and temperature requirements before installation.
- Confirm media compatibility for the intended system.
- Support connected piping appropriately to avoid excessive mechanical loading.
- Check completed threaded connections for leakage before normal operation.
- Follow applicable plumbing codes and Midland manufacturer recommendations.