Charman Inc.
Charman 1/2" Push Fit x 3/8" OD 1/4 Turn Straight Stop
- SKU:
- 440983S
- Availability:
- Usually in Stock – Ships Quickly
- Weight:
- 0.28 LBS
Description
Charman 1/2" Push Fit x 3/8" OD 1/4 Turn Straight Stop
Charman 1/2" Push Fit x 3/8" OD 1/4 Turn Straight Stop provides a convenient fixture shutoff connection between compatible 1/2" CTS water-supply tubing and a 3/8" OD supply connection. The push-fit inlet helps simplify installation without soldering, clamps, unions, or glue, while the quarter-turn valve provides convenient on/off water control.
The straight-stop configuration keeps the fixture supply connection in line with the incoming water line rather than redirecting it approximately 90 degrees. This makes the Charman 440983S useful for residential and commercial plumbing installations where the incoming tubing and fixture supply connection are generally aligned.
Product Highlights
- Charman Inc part number 440983S
- 1/2" push-fit inlet connection
- 3/8" OD fixture supply outlet
- 1/4-turn straight stop valve configuration
- Compact lead-free brass construction
- Compatible with copper tubing, CTS CPVC, and PEX
- Push-fit installation requires no soldering, clamps, unions, or glue
- Charman push-fitting family is certified for service up to 200 PSI and 200°F
What Is a Push Fit 1/4 Turn Straight Stop?
A push fit straight stop is a fixture shutoff valve designed to connect directly to compatible tubing while maintaining an in-line fixture supply connection. The Charman 440983S combines a 1/2" push-fit tubing connection with a 3/8" OD fixture-side connection in a compact straight-body configuration.
The quarter-turn valve allows the water supply to be opened or closed with a short handle movement. This provides a convenient local shutoff point for fixture servicing, replacement, maintenance, or emergency isolation without requiring the entire building water supply to be shut down.
Why Choose a Charman Push Fit 1/4 Turn Straight Stop?
Fast Push-Fit Installation
- No soldering is required
- No glue or clamps are required
- Instant push-fit connection simplifies installation
- Useful for new installations and plumbing repairs
- Helps reduce installation steps in confined plumbing areas
Convenient Straight Stop Design
- Provides local fixture isolation
- Maintains a straight-line connection
- Quarter-turn operation provides quick shutoff control
- Useful where supply tubing aligns with the fixture connection
- 3/8" OD outlet accommodates compatible fixture supply connections
Common Applications
Residential Plumbing
- Kitchen sink installations
- Lavatory fixture supply lines
- Bathroom sink supply connections
- Fixture shutoff replacements
- Residential plumbing repairs and renovations
Commercial & General Plumbing
- Maintenance and repair installations
- Potable-water distribution systems
- Commercial fixture supply connections
- Apartment and multifamily plumbing
- Compatible copper, CPVC, and PEX plumbing systems
Construction Details
Lead-Free Brass Body
- Compact brass construction
- Suitable for approved concealed applications
- Designed for dependable plumbing installations
- Built for convenient repeated shutoff operation
- Lead-free design for compatible potable-water applications
Push-Fit Connection System
- 1/2" push-fit tubing inlet
- No soldered joint is required
- Designed for compatible CTS tubing
- Designed for fast connection and removal
- Suitable for compatible copper, CTS CPVC, and PEX
1/4 Turn Straight Stop Design
The Charman 440983S uses a quarter-turn valve mechanism for quick fixture isolation. A short 90-degree handle movement operates the valve between its open and closed positions, providing a convenient alternative to traditional multi-turn shutoff designs.
The straight-body arrangement maintains alignment between the incoming 1/2" tubing and the 3/8" OD fixture supply connection. This configuration is particularly useful when water-supply tubing approaches in line with the fixture connection and no directional change is required.
Straight Stop vs. Angle Stop
Straight Stop - 440983S
- Maintains an in-line connection
- Quarter-turn shutoff operation
- 1/2" push fit x 3/8" OD configuration
- Keeps the inlet and outlet generally aligned
- Useful where tubing approaches in line with the fixture connection
Angle Stop - 440983
- Quarter-turn shutoff operation
- 1/2" push fit x 3/8" OD configuration
- Available as a separate Charman product
- Redirects the connection approximately 90 degrees
- Useful where the water supply approaches through a wall
Where a Charman Straight Stop Makes Sense
- At sinks and lavatories requiring a local fixture shutoff
- Where water-supply tubing aligns with the fixture connection
- For replacement of compatible straight-pattern fixture supply stops
- In compatible copper, CTS CPVC, and PEX water-distribution systems
- Where push-fit installation can simplify a plumbing repair or renovation
- For residential and commercial installations requiring an in-line fixture supply connection
Installation & Selection Considerations
- Confirm the 1/2" push-fit inlet and 3/8" OD outlet sizes.
- Verify the straight configuration matches the fixture supply layout.
- Cut tubing square and make sure the connection surface is clean and free of burrs.
- Fully insert compatible tubing into the push-fit connection before placing the system in service.
- Verify the complete plumbing system is suitable for the intended pressure, temperature, media, and applicable codes.
Product Selection Considerations
Connection Size
Select the Charman 440983S when the installation requires a 1/2" push-fit tubing connection and a 3/8" OD fixture-side connection. Verify both connection sizes before ordering.
Installation Orientation
Choose the straight-stop configuration when the incoming water line and fixture supply connection need to remain generally in line. Use the separately listed Charman angle stop when the connection requires an approximately 90-degree directional change.
The GetPipe.com team can help confirm your connection size, tubing type, and straight-stop configuration before you order.
Frequently Asked Questions
What is Charman part 440983S?
Charman 440983S is a 1/2" push fit x 3/8" OD quarter-turn straight stop designed to provide local shutoff control at a compatible plumbing fixture supply connection.
What size connections does the 440983S have?
The valve has a 1/2" push-fit inlet connection and a 3/8" OD fixture-side connection.
Is the 440983S a straight stop or an angle stop?
The 440983S is the straight-stop configuration. Charman 440983 is the separate angle-stop version.
What tubing can be used with the push-fit connection?
Charman identifies its push-fitting system for use with compatible copper tubing, CTS CPVC, and PEX.
Does installation require soldering or glue?
No. Charman states that its push fittings do not require soldering, clamps, unions, or glue for the push-fit connection.
What are the pressure and temperature ratings?
The Charman push-fitting family is certified for service up to 200 PSI and 200°F (93°C).
Can Charman push fittings be used for potable-water systems?
Yes. Charman identifies the push-fitting family as lead free and designed for potable-water distribution as well as compatible hydronic-heating applications.
When should I choose a straight stop instead of an angle stop?
Select a straight stop when the incoming water line and fixture supply connection need to remain generally in line. An angle stop is more appropriate when the connection requires an approximately 90-degree directional change.
Important Ordering & Installation Notes
- Connection size is 1/2" push fit x 3/8" OD.
- Charman 440983 is the separate quarter-turn angle-stop version.
- Verify tubing type, connection size, and installation orientation before ordering.
- This listing is specifically for Charman part 440983S, the straight-stop configuration.
- Confirm the complete plumbing system is appropriate for the intended pressure, temperature, media, and installation conditions.