Purged lip sealing valve drop-in replacement Patented

Upgrade your rotary valves and your GC performance.

The PLSV drop-in replacement valves series is designed to improve trace GCs performance. To help all GC applications, our valves are backward compatible with third-party actuators.

Why upgrade to PLSV valves?

Improve detector noise by avoiding carrier gas contamination from air (inboard leak)and sample (cross port leak).
Extend column lifetime by avoiding air and moisture contamination from air leaks into the valve.
Reduced maintenance with extended valve lifetime
Extend your treated GC valve head coating lifetime due to our reduced insert and valve head friction surfaces.
Purged valve with inert gas to capture and safely dispose of hazardous sample leaks.
Replaces both conical rotatory and diaphragm valves.

Features

Available as 6 and 10 ports (other available)
Wide range of operating temperatures: 180 °C, 265 °C and 330 °C
Wide range of insert and valve head material
Compatible with third-party actuators
Compatible with ASDevices compact pneumatic actuator
Mounting standoff available

Typical applications

Benefit all GC applications

Actuator compatibility

No need to modify your GC mechanical design, simply upgrade to PLSV

Directly compatible with conical rotary valve actuators
Shown on third-party actuator

Compatible with Agilent heated valve box

Order our upgrade kit and simply install our valve  on your Agilent GC.
Also compatible with other laboratory GCs.

Optimized for compact pneumatic actuator (CPA)

Because third-party actuators failed to fulfill our requirements, we designed a high-quality, long-lasting actuator. It can do over 1,000,000 actuations at extreme temperatures (180 °C) and is built to survive as long as our GC valves. Upgrade to our CPA for a longer lifetime.

Technology

Leaks are virtually impossible by design

With its purging channels located between two adjacent valve channels and valve head purging pockets machined into the GC valve head, our PLSV’s unique, patent-pending design does away with leaks. The pockets connect the purging inlet and outlet through the channels, allowing purge gas to flow freely. Since the volume around the insert and in between ports is continuously removed, there are no more inboard/outboard and cross-port leaks.

Improves lifetime with reduced surface sealing area

Using finite element modeling (FEM) and real-life testing, we optimized the sealing lip size and shape. The result is a sealing surface area that’s 14% the size of a standard conical rotary GC valve, decreasing wear and tear and friction on the valve. What’s more, the insert material is specially treated by a proprietary process that improves the surface finish, hardness and creeping.