Dwyer Instruments SMV2-WM4 | Mini stainless steel ball valve | 1/2" NPT male x female
The Dwyer SMV2-WM4 mini ball valve is a compact 1/2" NPT stainless steel valve designed for instrumentation, sample lines, and tight-clearance installations. Its male x female connection configuration allows direct installation into compatible threaded piping without requiring an additional adapter.
Built with a cast 316 stainless steel body and 316 stainless steel internal components, the SMV2-WM4 combines compact construction with an 800 psi (51.1 bar) WOG pressure rating. A PTFE ball seat provides a reliable, low-torque sealing arrangement for small process and instrumentation lines.
Part Number: SMV2-WM4
The Dwyer SMV2-WM4 is designed for applications where a conventional full-size ball valve may not fit due to limited installation space. Its compact construction makes it suitable for instrument panels, sample lines, gauge isolation points, and other areas with restricted clearance.
The valve features a cast 316 stainless steel (CF8M) body, along with a 316 stainless steel ball, insert, and stem. The PTFE ball seat supports smooth, low-torque operation and reliable sealing.
With 1/2" NPT male x female connections, the SMV2-WM4 can be threaded directly into a compatible line where this connection arrangement is required. Despite its compact form, the valve is rated to 800 psi (51.1 bar) WOG, making it suitable for instrumentation and small process lines exposed to meaningful system pressure.
For applications requiring female connections on both ends, the Dwyer range also includes the SMV2-WF4, a 1/2" NPT mini stainless steel ball valve with female x female connections.
Key Benefits
- 1/2" NPT male x female connection
- Compact design for tight-clearance installations
- Cast 316 stainless steel (CF8M) body
- 316 stainless steel ball, insert, and stem
- PTFE ball seat for reliable, low-torque sealing
- 800 psi (51.1 bar) WOG maximum pressure rating
- Maximum operating temperature of 212°F (100°C)
- Suitable for instrumentation and small process lines
Who This Product Is Best For
The Dwyer SMV2-WM4 is suitable for instrumentation and controls technicians, process engineers, maintenance teams, and contractors who require a compact stainless steel ball valve for 1/2" NPT installations.
It is particularly useful for sample lines, gauge isolation, instrument panels, and other installations where available space is limited and a male x female connection is required.
How to Use
- Install the SMV2-WM4 into the compatible 1/2" NPT line at the required isolation or sample point.
- Apply an appropriate thread sealant and tighten carefully, avoiding excessive torque on the compact valve body.
- Confirm that the connection is properly aligned and secure.
- Cycle the valve fully open and closed to verify smooth operation before commissioning.
- Ensure the valve is suitable for the system pressure, temperature, and process media before operation.
Frequently Asked Questions
What connection type does the Dwyer SMV2-WM4 use?
The SMV2-WM4 uses 1/2" NPT male x female connections.
What material is the SMV2-WM4 made from?
The valve has a cast 316 stainless steel (CF8M) body, with a 316 stainless steel ball, insert, and stem. It uses a PTFE ball seat.
What is the maximum pressure rating?
The maximum pressure rating is 800 psi (51.1 bar) WOG at 1/2".
What is the maximum operating temperature?
The maximum operating temperature is 212°F (100°C).
Why choose a mini ball valve instead of a standard-size ball valve?
The compact design of the SMV2-WM4 allows it to fit into instrument panels, sample lines, and other tight installations where a conventional valve may not have sufficient clearance.
Is the SMV2-WM4 suitable for instrumentation applications?
Yes. Its compact size, 316 stainless steel construction, 1/2" NPT connection, and 800 psi WOG rating make it suitable for instrumentation and small process-line applications within its operating limits.
What is the difference between the SMV2-WM4 and SMV2-WF4?
Both are 1/2" NPT mini stainless steel ball valves with the same stated pressure rating. The SMV2-WM4 has male x female connections, while the SMV2-WF4 has female x female connections. Select the model according to the required piping configuration.
Does GeneralTech Shop deliver the SMV2-WM4 across the UAE?
Contact GeneralTech Shop at +971 6 5436933 to confirm availability and delivery timelines for your emirate.
Request a Quote
Looking for the Dwyer SMV2-WM4 mini stainless steel ball valve for an instrumentation, sample-line, or tight-clearance installation? Contact GeneralTech Shop for pricing, availability, and delivery information.
Call: +971 6 5436933
