Features
- Tapered stem tip accurately controls gas and liquid flow rates
- Straight, angle, cross, and double patterns
- Panel mounting
- Knurled, round, vernier, slotted, and adjustable-torque
handles
Testing
Every Swagelok S, M, and L series metering valve is factory
tested with nitrogen at 1000 psig (69 bar). Shell testing is performed
to a requirement of no detectable leakage with a liquid leak detector.
Every Swagelok L series metering valve is tested for bubble-tight
seat shutoff at 100 psig (6.8 bar) differential pressure.
Cleaning and Packaging
Swagelok S, M, and L series metering valves with VCR end
connections are processed in accordance with Swagelok Special Cleaning
and Packaging (SC-11), to ensure compliance with product cleanliness
requirements stated in ASTM G93 Level C.
Swagelok S, M, and L series metering valves with other end
connections are processed in accordance with Swagelok Standard Cleaning
and Packaging (SC-10); special cleaning and packaging are available as
an option.
Options
 |
 |
S
Series
Cross Pattern |
M
Series
Double Pattern |
Cross Pattern (S and M Series)
- Fluid flows between side ports around stem in any stem
position.
- Flow through branch port can be metered in both directions.
Double Pattern (S and M Series)
- Inlet valve handle can be set and locked at desired maximum
flow.
- Outlet valve handle can be used for fine flow control up to
the preset maximum of the inlet valve.
Vernier
Handle (S, M, and L Series)
- Helps ensure repeatable flow adjustments.
- Provides readings accurate to 1/25 turn.
Adjustable-Torque
Handle (S Series)
- Enhances control for setting flows.
- Features PTFE packing and two top-mounted torque adjustment
screws.
- Is available in stainless steel material on stainless steel
valves and in chrome-plated brass on brass valves.
Slotted
Handle (S and M Series)
- Allows flow setting adjustment with a screwdriver.
- Is for use in installations where handle is not easily
accessible.
- Is available in stainless steel material on stainless steel
valves and in chrome-plated brass on brass valves.
- Allows valve to be panel mounted without removing handle.
Stem O-Ring Materials (S, M, and L Series)
Buna N O-rings are standard for brass valves; fluorocarbon FKM
O-rings are standard for stainless steel valves. Ethylene propylene,
Kalrez®, and neoprene are available.