Swagelok 40 series ball valve provides efficient on-off control through its three-way switching configuration and seamless one-piece construction. The M-43XS4 model is a 1-piece instrument ball valve designed for reliable service in diverse industries, featuring Alloy 400 body and stem materials for enhanced corrosion resistance. It offers a maximum flow coefficient (Cv) of 0.9 and is equipped with 1/4 inch Swagelok tube fitting connections on all three ports.

Technical Specifications

Specification	Detail
Model / Part #	M-43XS4
Body Material	Alloy 400
Ball/Stem Material	Alloy 400
Flow Pattern	3-Way, Switching
Pressure Rating	2500 PSIG @ 100°F (172 BAR @ 37°C)
Flow Coefficient (Cv)	0.9
Orifice	0.187 in (4.7 mm)
Connection 1/2/3	1/4 in. Swagelok® Tube Fitting
Packing Material	PTFE
Ring/Disc Material	PTFE-Coated Alloy 400
Handle Type	Black Lever
Service Class	General
Low Emissions	Certified

Features and Benefits

• One-Piece Construction: Eliminates leak points and simplifies the valve design for instrumentation applications.
• 3-Way Switching: Provides efficient directional flow control in a compact package.
• In-line Adjustment: Designed for ease of packing adjustment while remaining installed in the system.
• Corrosion Resistance: Alloy 400 construction provides durability in challenging service environments.

Standard Cleaning

This product undergoes Swagelok Standard Cleaning and Packaging (SC-10) to ensure component cleanliness and integrity for general industrial service.

Testing and Certification

All M-43XS4 valves are tested according to Swagelok standard WS-22. This model is Low Emissions Certified, meeting modern environmental and performance standards for leak-tight operation.

System Safety

The total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user. Do not mix Swagelok products or components with those of other manufacturers.