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Single Feedthroughs

Browse Single Feedthroughs

01 - Product Info

Single feedthroughs provide a solitary conducting path, ideal for applications that require both hermetic sealing and electrical isolation. These typically fall into one of four categories:

  • High-voltage
  • High-current
  • High-power
  • Instrumentation

In addition to maintaining hermetic integrity, many of our feedthroughs are designed to withstand extreme conditions, including high temperatures, cryogenic environments, high pressures, ultra-high vacuum, and chemically aggressive atmospheres.

02 - Key Features

High Voltage/Current: Available in variants rated up to 150kV DC or 1000A, suitable for power feedthroughs, instrumentation lines, or grounding paths.
U.H.V Application: All units are leak-tested to below 1 × 10⁻⁹ mbar l/s and manufactured using vacuum-compatible materials.
Compact Design: Single feedthroughs offer a minimal footprint, making them ideal for systems where space is restricted or where electrical paths must be kept discrete.
Highly Customisable: Offered with various standard conductor types and flange mountings, with the ability to customise terminations, conductor materials, and body geometry to suit system requirements.

Multi-pin Feedthroughs

Browse Multi-pin Feedthroughs

01 - Product Info

In many vacuum system applications, it is necessary to introduce multiple low-level drive and signal circuits through a single interface. This can be achieved safely, efficiently, and cost-effectively using a single U.H.V flange equipped with multiple feedthroughs, mated to a secure plug that offers easy connect/disconnect.

For working voltages up to 3.5kV DC (pin-to-pin and pin-to-ground), a compact multi-pin socket can be used. This configuration allows a high density of electrical connections to be housed within a small-diameter vacuum flange, preserving space without compromising performance.

For higher voltage requirements, between 3.5kV and 10kV DC, individual single feedthroughs are required for each pin to ensure electrical isolation and safety.

02 - Key Features

Dense Configuration: Multi-pin feedthroughs allow multiple isolated circuits to pass through a single flange, optimising space and reducing the number of vacuum penetrations.
Configurable Pin Layouts: Available in a wide range of standard configurations, from 2 to 19 pins, with custom layouts easily produced to suit specific system requirements.
Plug/Socket Compatibility: Can be supplied as plug and socket pairs for quick disconnect, and simplified assembly in restricted spaces or modular systems.
U.H.V Applications: All units are leak-tested to below 1 × 10⁻⁹ mbar l/s and manufactured using vacuum-compatible materials.

Coaxial Connectors

Browse Co-axial Connectors

01 - Product Info

We offer a wide range of coaxial connectors, available in four standard mating interface styles to suit both defence and commercial applications:

  • BNC: 500V DC, 3A, 10¹³ Ω (at 1 kV DC), bayonet
  • MHV: 5kV DC, 3A, 10¹³ Ω (at 1 kV DC), bayonet
  • SHV: 10kV DC, 3A, 10¹³ Ω (at 1 kV DC), bayonet
  • SMA: 700V DC, 1A, 10¹³ Ω (at 1 kV DC), screw

All coaxial connectors can be supplied for welding or screwing directly into vacuum flanges or chambers. Alternatively, they can be pre-welded into U.H.V, Klein™, or O-ring flanges, as single or multi-pin assemblies.

With the plug connected, the operating temperature range is -65°C to +165°C. When the plug is removed, the socket can be safely thermocycled to 450°C at a controlled rate of < 6 °C per minute. These miniature couplings are ideally suited for U.H.V environments, as well as high-temperature applications.

02 - Key Features

Broad Voltage Performance: These connectors cover working voltages from 500V to 10kV DC, offering signal integrity in highly sensitive applications.
Quick-Connect Interface: Choose from bayonet or threaded interfaces depending on application requirements, installation preferences, and voltage safety considerations.
Flexible Mounting: Connectors can be supplied ready to weld-in, or pre-mounted into a range of vacuum flanges, including Conflat, O-ring, or custom geometries.
U.H.V Applications: All units are leak-tested to below 1 × 10⁻⁹ mbar l/s and manufactured using vacuum-compatible materials.

Thermocouple Feedthroughs

Browse Thermocouple Feedthroughs

01 - Product Info

Accurate temperature measurement is essential in many vacuum applications. To support a broad range of operating conditions, we offer a comprehensive selection of Thermocouple and Thermocouple Power Feedthroughs, suitable for continuous use from -185°C to +1600°C.

All feedthrough conductors and connector contacts are manufactured from materials matched to the thermocouple type, ensuring accurate, error-free signal transmission. Standard designs support operating temperatures up to 400°C; where miniature thermocouple connectors are used, the maximum temperature is limited to 200°C.

All thermocouple feedthroughs are fully compatible with U.H.V environments.

02 - Key Features

Wide Temperature Range: Designed for continuous use from -185°C to +1600°C, with standard assemblies supporting vacuum-side temperatures upwards of 450°C.
U.H.V Compatible: All units are leak-tested to below 1 × 10⁻⁹ mbar l/s and manufactured using vacuum-compatible materials.
Type-Matched Conductors: All thermocouple feedthroughs use conductor materials matched to the thermocouple type, ensuring accurate, error-free temperature measurements.
Flexible Termination/Mounting: Available with a range of terminations, including bare wires, connectors, or plugs, and can be supplied for welding or pre-mounted in U.H.V flanges.

Electrical Isolators

Browse Electrical Isolators

01 - Product Info

For applications where electrical isolation, mechanical strength, and environmental resistance are critical. All isolators are based on reliable ceramic-to-metal sealing technology.

Cryogenic Liquid/Gas Isolators: Compression-jointed ceramic-to-metal seals provide outstanding mechanical strength and resistance to thermal shock, making them ideal for use as isolators in cryogenic fluid and refrigerant systems where a voltage differential exists.

Small Diameter Isolators: These isolators, similar in construction to cryogenic feedthroughs, are suitable for use in vacuum systems or within liquid and gas feed circuits. They can be welded directly into customer equipment or supplied pre-welded into a variety of standard vacuum flanges.

Vacuum Breaks: Designed for larger-scale applications, vacuum breaks offer electrical isolation across vacuum lines and are available with static or rotatable flanges stainless steel flanges to simplify alignment during assembly. All designs are U.H.V compatible and suitable for repeated bake-out cycles up to 450°C.

Heat Sink Isolators: These isolators combine good thermal conductivity and excellent electrical insulation, making them ideal for applications requiring heat transfer across an electrically isolating barrier.

02 - Key Features

Electrical Isolation: Maintains voltage separation between systems whilst providing excellent dielectric strength under vacuum, pressure, cryogenic, and high-temperature conditions.
Shock Resistant: Our isolators feature robust metallisation, joint design, and material selection to provide excellent resistance to thermal shock.
U.H.V Compatible: All units are leak-tested to below 1 × 10⁻⁹ mbar l/s and manufactured using vacuum-compatible materials.
Non-Magnetic Options: Where required, isolators can be built using non-magnetic materials to support applications in any environment.

Sapphire Viewports

Browse Sapphire Viewports

01 - Product Info

Our hermetic sapphire viewports are engineered for durability and performance in U.H.V environments. Single-crystal sapphire (melting point 2040°C) combines outstanding optical, mechanical, and chemical properties.

Sapphire features broad optical transmission, covering infrared, visible, and ultraviolet spectra:

  • 0.2 - 0.4µm ~70% transmission
  • 0.5 - 4.0µm ~85% transmission
  • 5.0 - 6.0µm ~50% transmission

This makes sapphire viewports ideal for demanding diagnostic and monitoring applications. In addition to standard windows, bespoke sapphire lenses can be supplied to customer specifications.

02 - Key Features

Broad Optical Range: Sapphire lenses offer excellent transmission across ultraviolet, visible, and infrared wavelengths, making them ideal for diagnostics, spectroscopy, and laser applications.
Chemically Inert: Sapphire offers excellent resistance to a wide range of corrosive gases and liquids, making these viewports ideal for use in aggressive chemical, plasma, or process environments.
U.H.V Compatible: All units are leak-tested to below 1 × 10⁻⁹ mbar l/s and manufactured using vacuum-compatible materials.
Exceptional Strength: Single-crystal sapphire provides outstanding strength and hardness, with a high resistance to thermal shock.