Swagelok 40 series ball valve SS-45S12 is a one-piece instrumentation valve designed for efficient liquid flow management. Featuring a two-way straight pattern and 316 stainless steel construction, this valve provides a high flow coefficient (Cv) of 6.4. It is equipped with 3/4 inch Swagelok tube fitting end connections and a black lever handle for manual shutoff operation.

The 40 series design allows for packing adjustments while the valve remains inline, ensuring ease of maintenance without system disassembly. It is low-emissions certified and undergoes standard cleaning and packaging in accordance with Swagelok SC-10 specifications. The valve is tested according to WS-22 standards to ensure reliable performance in general service applications.

Technical Specifications

Specification	Detail
Flow Pattern	2-Way, Shutoff, Straight
Orifice	0.406 in (10.3 mm)
Cv Maximum	6.4
Pressure Rating	2500 PSIG @ 100°F (172 BAR @ 37°C)
Packing Material	PTFE
Ball/Stem Material	Stainless Steel
Ring/Disc Material	PTFE-Coated Stainless Steel

Material and Construction

The valve body is manufactured from 316 stainless steel, offering excellent corrosion resistance. The internal components include a stainless steel ball and stem, with PTFE packing for reliable sealing. The handle is a black lever style, providing clear visual indication of the valve's open or closed status.

System Design Responsibility

When selecting products, 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.

Maintenance Note

Packing adjustments can be performed while the valve is installed inline, which facilitates routine maintenance without requiring the removal of the valve from the piping system.