Our GC Columns and Accessories range is selected to help laboratories achieve consistent, high quality gas chromatography results, whether you are running routine QC, method development, troubleshooting, or high throughput testing. We supply capillary GC columns across a broad choice of stationary phases and dimensions to suit common applications including residual solvent analysis, environmental screening, petrochemical testing, flavors and fragrances, forensic work, and pharmaceutical quality control. With options covering different polarities, film thicknesses, and internal diameters, you can optimize resolution, run time, and sensitivity for your target analytes. To support reliable day to day operation, we also offer the accessories needed to install, maintain, and protect your GC system. This includes consumables and fittings for column setup and leak free connections, ferrules and nuts, liners and seals, traps and filters to reduce contamination, and tools that make cutting and handling columns safer and more repeatable. These items help reduce downtime, extend column life, and improve reproducibility by minimizing active sites, oxygen and moisture ingress, and carryover. If you are selecting a new column, replacing an existing part number, or trying to improve performance on a difficult separation, we can help you match the correct phase and dimensions and recommend the right supporting consumables. Our goal is to make it easy to source dependable GC columns and accessories from one place, with practical guidance and fast support when you need it.

The GEMÜ 656 2/2-way diaphragm valve has a low maintenance metal membrane actuator and is pneumatically operated. Normally Closed (NC), Normally Open (NO) and Double Acting (DA) control functions are available. The valve body has a full bore design. Key features: - High flow rate due to straight through flow - Suitable for media with a high solids content such as fibres, coarse particles and sludge - High mechanical stability - Valve can be cleaned without disassembly of actuator

Whether neutral, aggressive or mechanically pure media - ball valves impress with their versatility - even under extreme conditions. Thanks to the drilled-through ball as a shut-off element, they enable the safe shut-off of liquid and gaseous media at high operating pressures. Only crystallising media should be handled with care, as this can impair the function.

For large pipework dimensions, our butterfly valves offer you a reliable solution for the safe control of liquids and gases. With the right combination of materials, they not only ensure efficient handling of mechanically pure liquids, but also of abrasive media - for maximum process reliability and durability.

FLEXIBLE, EASY, COMPACT, EFFECTIVE. GEMÜ D40 and D41 point the way to the future: With a fixed chambered diaphragm, the new body geometry and simple installation, they perform efficiently. The GEMÜ D41 valve with innovative EasyLock technology is mounted completely without any loose components via a central gearbox. Key features - Suitable for use in hygienic and aseptic applications (CIP/SIP capable) - Fast, safe and simple diaphragm and actuator mounting via a central gearbox due to EasyLock technology - Low maintenance thanks to the encapsulated diaphragm, which requires no retightening - Very high Kv values due to flow-optimised valve body - Identification of the mounting angle (hash mark) - Optical position indicator and transparent cap as standard - Simple modular expansion possible with future-orientated automation components

Diaphragm valves are the all-rounders among valves. One of the major advantages is that only two components come into contact with the operating medium: the shut-off diaphragm and the valve body. Thanks to the hermetic separation between actuator and valve body, they are ideally suited for applications with special hygienic requirements.

Our globe valves are suitable for clean, liquid media as well as gases and vapour. Thanks to the linear movement and favourable mechanical conditions, they often perform automation tasks with fast switching cycles and high switching frequency.

With bubble-tight sealing in accordance with EN 12266-1/P12 and a leak rate of A, GEMÜ butterfly valves deliver superior performance combined with a sleek design. Available in a wide range of materials, accessories, and certifications such as WRAS and DVGW, GEMÜ butterfly valves are ideal for use throughout the water treatment process, working to enhance efficiency and effectiveness. Visit stand E20 to see a working model of the GEMÜ 481 butterfly valve, featuring the latest GEMÜ 12A0 intelligent electrical position indicator. Key features: - Low torques thanks to PTFE coated bushes - Bubble tight sealing acc. to EN 12266-1/P12, leakage rate A - Liner material is easy to read when installed - Sleek disc design for higher Kv values - Robust body coating comparable to ISO 12944-6 C5 - Various actuator types can be selected - Optional accessories are installed, set and tested so they are ready for operation

The GEMÜ R487 Victoria is a manually operated soft seated metal butterfly valve. Available with a hand lever or gearbox depending on customer requirements, it offers flexibility to your application. The butterfly valve is available in nominal sizes DN 25 to 600 and in standard installation lengths ISO 5752/20 | EN 558-1/20 | API 609 category A (DIN 3202 K1) in wafer, lug and U section body versions. Available with a wide range of conformities, the valve is ideal for water treatment and biogas applications. Key features: - Low torques thanks to PTFE coated bushes - Bubble tight sealing acc. to EN 12266-1/P12, leakage rate A - Liner material is easy to read when installed - Sleek disc design for higher Kv values - Robust body coating comparable to ISO 12944-6 C5 - Various actuator types can be selected - Optional accessories are installed, set and tested so they are ready for operation

The GEMÜ R690 2/2-way diaphragm valve has a low maintenance membrane actuator and is pneumatically operated. Normally Closed (NC), Normally Open (NO) and Double Acting (DA) control functions are available. The high-flow valve body provides compact dimensions at high flow rates. Key features: - Compact system design due to flow-optimized high-flow valve bodies - Reduced control air consumption - Modified spring sets available for applications with reduced control pressure - Position indicator and positioner optionally available - Closing stroke limiter optionally available

The pneumatically actuated GEMÜ S40 globe valve is designed for use in industrial applications and has body shapes such as angled and straight seat bodies. The valve spindle is sealed by a self-adjusting sealing element; this ensures low-maintenance and reliable sealing even after long periods of operation. Normally Closed, Normally Open and Double Acting control functions are available. Key features: - Suitable for shut-off and control functions for gaseous, liquid and viscous media - For contact with food in accordance with Regulation (EC) No. 1935/2004 and FDA-compliant - All sealing components can be replaced - Top-mounted control connections with position indicator and sight glass - Robust stainless steel actuator resistant to corrosive ambient conditions - Suitable for vacuum up to 10 mbar (a) as standard - Optionally available with USP Class VI, oxygen approval and ATEX

From iodine solutions to speciality amphoterics, terpene cleaning concentrates and hydrotropes, Lakeland’s technical team is continually exploring new applications and new ranges to suit diverse client needs, changing regulations and evolving consumer expectations in global sectors from agrochem and manufacturing to cleaning, construction and oil field.

Glass jacketed and stirred filter/reactor, particularly useful for solid phase synthesis. Sizes from 10 litres to 100 litres.

Glass jacketed reactors, 5-15 litres. ATEX rated stirrers with ATEX mechanical seals. Distillation overheads available. A range of filters and gas scrubbers to match.