Vacuum. Dry Turbo Pumping Stations. Roughing Pumps for 1 K Helium Pots and Lambda Refrigerators. Hermetically Sealed Pumps for He3 Recirculation

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Cryogenics Vacuum Dry Turbo Pumping Stations Roughing Pumps for 1 K Helium Pots and Lambda Refrigerators Hermetically Sealed Pumps

provide all the necessary vacuum tools and accessories for your laboratory.

We are pleased to introduce several new products.

1 Cryogenics Vacuum Dry Turbo Pumping Stations Roughing Pumps for 1 K Helium Pots and Lambda Refrigerators Hermetically Sealed Pumps for He3 Recirculation Oils, Filters and Traps Valves, Fittings and Adaptors As high vacuum is a requirement for all cryogenics, we provide all the necessary vacuum tools and accessories for your laboratory. In addition, we provide the specialized rough vacuum pumps required for Helium circulation. We are pleased to introduce several new products. Our integrated turbo pumping station will enable you to setup your laboratory quickly, without the need to identify and source multiple components in order to achieve high vacuum. Our product offering is rounded out with the required accessories and fittings fully enabling you with respect to all your vacuum needs.

Nominal pumping speed 12 m 3 /hr, ultimate pressure 1.5 x 10-3 mbar. Single phase motor. Suitable for pumping on 1 K helium pot in Oxford Instruments cryostats. Easy to use gas ballast.

2 Vacuum Pumps We offer the pumping equipment matched to our cryomagnetic systems. In many cases, pumps have been customised especially for our use RV12 12 m 3 /hr Dual mode, oil-sealed, rotary vane pump where low ultimate pressures are required. Nominal pumping speed 12 m 3 /hr, ultimate pressure 1.5 x 10-3 mbar. Single phase motor. Suitable for pumping on 1 K helium pot in Oxford Instruments cryostats. Easy to use gas ballast. Voltage 120 V, 60 Hz H V, 50 Hz H4-331 EPS16-65 Pump Range This series of economical, oil-sealed, rotary vane pumps is designed to keep the noise level as low as possible. This is ensured by optimized running and sliding speeds and low-noise drive motors. Oil injected into the pump chamber for sealing, lubrication and cooling is recycled from the oil reservoir and filtered prior to injection. The lubricant system is rated for continuous operation at high intake pressure so the pump may be used in a versatile manner in most rough vacuum applications. EPS16 (16 m 3 /hr) Pumping on 1 K helium pots requires appropriate pump sizing to ensure proper base temperature without wasting helium by pumping down too rapidly Nominal pumping speed 16 m 3 /hr, ultimate pressure 0.5 mbar. Single phase motor. Suitable for pumping on 1 K helium pot in Oxford Instruments cryostats. Power Supply 1PH 240 V, 50 Hz H PH 120 V, 60 Hz H PH 230/400 V, 50 Hz H PH V, 60 Hz H North and South America +1 (888) oidirect.supercon@ma.oxinst.com

Level Vacuum 1 Level 2 Pumps EPS40 (40m 3 /hr) Nominal pumping speed 40 m 3 /hr, ultimate pressure 1.5 mbar. Equipped with gas ballast and ballast valve.

2 K are required by reducing the vapour pressure of helium in the storage reservoir. Useful in conjunction with our electronic pressure controller, H6-104, to achieve precise temperature control.

These are optimal with our electronic pressure controller (H6-104) Power Option 3PH 230/400 V, 50 Hz; 230/460 V, 60 Hz H4-350 3PH 230/400 V 50 Hz; 460 V, 60 Hz H4-351 EPS65 (65m 3 /hr) Nominal

3 Level Vacuum 1 Level 2 Pumps EPS40 (40m 3 /hr) Nominal pumping speed 40 m 3 /hr, ultimate pressure 1.5 mbar. Equipped with gas ballast and ballast valve. Suitable for pumping on helium reservoir for most Oxford Instruments magnets and lambda refrigerators where base temperatures <4.2 K are required by reducing the vapour pressure of helium in the storage reservoir. Useful in conjunction with our electronic pressure controller, H6-104, to achieve precise temperature control. Oxford Instruments recommends these pumps for use on magnets below 4.2 K. These are optimal with our electronic pressure controller (H6-104) Power Option 3PH 230/400 V, 50 Hz; 230/460 V, 60 Hz H PH 230/400 V 50 Hz; 460 V, 60 Hz H4-351 EPS65 (65m 3 /hr) Nominal pumping speed 65 m 3 /hr, ultimate pressure 1.5 mbar. Equipped with gas ballast and ballast valve. Suitable for pumping on helium reservoir for the largest capacity Oxford Instruments magnets and lambda refrigerators where base temperatures <4.2 K are required by reducing the vapour pressure of helium in the storage reservoir. Useful in conjunction with our electronic pressure controller, H6-104, to achieve precise temperature control. Power Option 3PH 230/400 V, 50 Hz; 230/460 V, 60 Hz H PH 230/346 V, 50 Hz; 208/360 V, 60 Hz H4-361 D65BH, 65 m 3 /hr - Hermetically Sealed Pump Power Option Two stage rotary vane pump with hermetic shaft seal. Nominal pumping speed 65 m 3 /hr, ultimate pressure 10-4 mbar. Three phase motor. This pump is suitable for He 3 recirculation in Oxford Instruments dilution refrigerator units, with a leak rate <1 x 10-7 mbar l sec -1. 3PH 230/400 V, 50 Hz; 250/440 V, 60 Hz H PH 200/346 V, 50Hz; 208/360 V, 60 Hz H4-371 A hermetically sealed pump is mandatory in dilution refrigerators for circulating He 3. Oxford Instruments provides two choices: our standard pump, or a magnetically coupled pump for higher performance, and longer term savings 139 For rest of world call Oxford Instruments Direct on +44 (0) oidirect.supercon@oxinst.co.uk

Vacuum Pumps Roughing Pumps DUO 65M, 65m 3 /hr - Magnetically Coupled Hermetic Pump This two-stage rotary vane pump has nominal pumping speed of 72 m 3 /hr, ultimate base pressure of 0.

This pump has been customized for Oxford Instruments and is ideally suited for He 3 recirculation in dilution refrigerators as the magnetic coupling provides the highest level of reliability against

4 Vacuum Pumps Roughing Pumps DUO 65M, 65m 3 /hr - Magnetically Coupled Hermetic Pump This two-stage rotary vane pump has nominal pumping speed of 72 m 3 /hr, ultimate base pressure of mbar, is equipped with 3 thermistor sensors, vacuum safety valve and magnetic coupling. Configured for 230/400 V (50 Hz), V (60 Hz). This pump has been customized for Oxford Instruments and is ideally suited for He 3 recirculation in dilution refrigerators as the magnetic coupling provides the highest level of reliability against a costly He 3 leak, even when the pump is unused for an extended period. Leak rate <1 x 10-7 mbar l sec -1. Power Option 3PH 230/400 V, 50 Hz; 250/440 V, 60 Hz H4-380 EH500 Roots Pump This Roots pump boosts pumping speeds to 500 m 3 /hr in 50 Hz operation (600 m 3 /hr for 60Hz operation) when used in conjunction with a hermetically sealed rotary vane backing pump. A shaft seal subject to wear is not required. Ultimate partial pressures achievable are <2 x 10-3 mbar. Suitable for pumping for He 3 recirculation in dilution refrigerator units, with a leak rate <1 x 10-7 mbar 10-7 sec -1. Required for high capacity dilution units such as Kelvinox 400 and above. Power Option 3PH V, 50 Hz H PH V, 50 Hz H PH V, 60 Hz H PH 460 V, 60 Hz H North and South America +1 (888) oidirect.supercon@ma.oxinst.com

Level 1 Level 2 Vacuum Pumps Accessories Calibrated Leaks Our TL7 Helium calibrated leak integrates directly into our Utility Leak Detectors.

The TL4-6 standalone Helium calibrated leak is adjustable between 10-4 and 10-6 mbar x L/s, with exchangeable Helium reservoir, pressure gauge and two manually operated valves.

5 Level 1 Level 2 Vacuum Pumps Accessories Calibrated Leaks Our TL7 Helium calibrated leak integrates directly into our Utility Leak Detectors. The electromagnetically operated valve provided permits the opening and closing of the calibrated leak to be controlled by the leak detector s software. The TL4-6 standalone Helium calibrated leak is adjustable between 10-4 and 10-6 mbar x L/s, with exchangeable Helium reservoir, pressure gauge and two manually operated valves. For calibration of leak rate readings and the alignment of Helium mass spectrometers in the vacuum pressure range and for determining the sensitivity of sniffers in the overpressure range. Item TL7 Calibrated Leak (right) H4-444 TL 4-6 Calibrated Leak (left) H4-445 Pump Oils These specially formulated lubricants are designated for the RV, SV, type D and EH pumps Pump Type Oil Type Quantity (L) SV GS32 5 H5-103 D65BH type H5-104 D65M type H5-105 RV ultragrade 19 4 H5-106 EH500 ultragrade 20 4 H5-107 Complete accessories for pumps offered by Oxford Instruments, including appropriate lubricants, filters and traps Shipping restrictions may apply Sorption Trap This sorption trap, for the D65BH Helium pump, prevents oil mist from streaming back into the system. H For rest of world call Oxford Instruments Direct on +44 (0) oidirect.supercon@oxinst.co.uk

Vacuum Pumps Stations Oil Free Turbo Pumping solutions Our turnkey pumping stations and leak detectors quickly satisfy general purpose vacuum requirements and maintenance needs Turbo Drag OVC Pump

products whilst providing high vacum without contamination risk. The diaphragm pumps gas ballast function enables the pumping of condensable vapours.

6 Vacuum Pumps Stations Oil Free Turbo Pumping solutions Our turnkey pumping stations and leak detectors quickly satisfy general purpose vacuum requirements and maintenance needs Turbo Drag OVC Pump Oil Free Recommended for use with small cryostats including Vacuum loaded sample cryostats This lightweight turbo pumping station is ideally sized to accompany our Spectroscopy cryostat range of products whilst providing high vacum without contamination risk. The diaphragm pumps gas ballast function enables the pumping of condensable vapours. Furnished with integrated Turbo controller, KF40 fitting, anti-vibration feet and available with or without full range gauge. TurboCube OVC Pump Oil Free Recommended for use with exchange gas and large cryostats This large capacity, compact turbo pumping station offers the additional ability of evacuating large voumes such as those of magnet dewars. Furnished with integrated Turbo controller, KF40 fitting and full range gauge. We offer you a complete solution as the pump is supplied with all necessary vacum fittings to facilitate connection with KF16 or KF25 flanges, you just need to select the preferred flexible pumping line from the table on page 148 Description Quantity KF 40 KF 25 Adaptor 1 KF 40 O-ring, O-ring carrier and clamp 1 KF 25 T-piece 1 KF 25 O-ring, O-ring carrier and clamp 4 KF 25 KF 16 Adaptor 1 KF 16 O-ring, O-ring carrier and clamp North and South America +1 (888) oidirect.supercon@ma.oxinst.com

7 Level 1 Level 2 Vacuum Pumps Stations Application suitability Cryostat Type Turbo Drag TurboCube ESR 900 / Heliox AC-V 4 Microstat He / N / Hi-Res II 4 Microstat BT 4 4 Optistat AC-V / CF-V 4 Optistat DN / DN-V 4 Optistat CF 4 4 LLD / SMD Magnet Dewar 4 SM Spectostat CF 4 4 Variox 4 4 Technical Data Turbo Drag OVC Pump TurboCube OVC Pump Flange (in) DN 40 ISO-KF DN 40 ISO-KF Pumping Speed 33 L/s (N2) 33 L/s (N2) Ultimate Pressure <1 x 10-7 mbar <1 x 10-7 mbar Roughing Pump Speed 0.9 m 3 /h 2.1 m 3 /h Mains Power Consumption 140 VA 280 VA Dimensions in mm (L x W x H) 300 x 300 x x 400 x 610 Weight 15 kg 32 kg Version Mains Input Voltage Turbo-Drag OVC Pump without gauging V, 50/60 Hz. 1PH H4-500 Turbo-Drag OVC Pump with gauging* V, 50/60 Hz. 1PH H4-501 Turbo-Cube OVC Pump* V, 50/60 Hz. 1PH H4-502 Turbo-Cube OVC Pump* V, 50/60 Hz. 1PH H4-503 *Pump includes the full range gauge and gauge cable Additional Items Full Range Gauge, DN 25 ISO KF H4-503 Gauge Cable, 3m H4-504 For rest of world call Oxford Instruments Direct on +44 (0) oidirect.supercon@oxinst.co.uk 143

Vacuum Valves Manual General Purpose Vacuum Valves The valves are of a robust construction and incorporate a pressure relief valve (except A3-104). The relief is set to open at approx. 0.

7 19 Pipeline Isolation Valves The valve is easy to operate and allows isolation of pipelines. It is leak-tight to better than 10-6 mbar.

8 Vacuum Valves Manual General Purpose Vacuum Valves The valves are of a robust construction and incorporate a pressure relief valve (except A3-104). The relief is set to open at approx. 0.3 bar overpressure. A3-102 A3-103 A3-104 Dimensions A dia. (mm) B (mm) C (mm) Body material Stainless steel Stainless steel Stainless steel Nominal bore (mm) Pipeline Isolation Valves The valve is easy to operate and allows isolation of pipelines. It is leak-tight to better than 10-6 mbar. KF Fitting 16 mm valve A mm valve A mm valve A3-303 Gate Valve Low impedance gate valve. Provides full bore access when opened. KF Fitting number 50 mm A mm A North and South America +1 (888) oidirect.supercon@ma.oxinst.com

Level Vacuum 1 Level 2 Fittings Centring Ring with Nitrile O Ring General purpose o-ring seals for vacuum applications with NW or KF flange connections.

Isolating Clamps and O Ring Carriers When used as a set, this clamp and o-ring carrier provide electrical isolation of a cryostat from the pumping system earth connection.

9 Level Vacuum 1 Level 2 Fittings Centring Ring with Nitrile O Ring General purpose o-ring seals for vacuum applications with NW or KF flange connections. KF fitting Material 10/16 mm Aluminium/Buna N A mm Aluminium/Buna N A mm Aluminium/Buna N A mm Aluminium/Buna N A mm Aluminium/Buna N A4-204 Electrically Isolating Clamps and O Ring Carriers When used as a set, this clamp and o-ring carrier provide electrical isolation of a cryostat from the pumping system earth connection. Clamp number Carrier + O-ring 16 mm A mm A mm A mm A mm A mm A mm A mm A For rest of world call Oxford Instruments Direct on +44 (0) oidirect.supercon@oxinst.co.uk

Vacuum Fittings Clamps Aluminium clamps are easily applied to seal common NW or KF flange connections.

A4-304 Adaptors KF Fitting Material 25 mm - 16 mm Adaptor Aluminium A4-511 40 mm - 25 mm Adaptor Aluminium A4-512

(888) 553 6616 KF Fitting Material 16 mm tee Aluminium A4-531 25 mm tee Aluminium A4-532 25 mm tee Stainless

10 Vacuum Fittings Clamps Aluminium clamps are easily applied to seal common NW or KF flange connections. KF fitting Material 10/16 mm Aluminium A mm Aluminium A mm Aluminium A mm Aluminium A4-304 Adaptors KF Fitting Material 25 mm - 16 mm Adaptor Aluminium A mm - 25 mm Adaptor Aluminium A mm - 16 mm Adaptor Aluminium A mm - 40 mm Adaptor Aluminium A4-514 Tees 146 North and South America +1 (888) KF Fitting Material 16 mm tee Aluminium A mm tee Aluminium A mm tee Stainless steel A mm tee Aluminium A mm tee Stainless steel A oidirect.supercon@ma.oxinst.com

Level Vacuum 1 Level 2 Fittings Elbow 90 KF Fitting Material 16 mm elbow Aluminium A4-521 25 mm elbow Aluminium A4-522 40 mm elbow

associated valve is opened unintentionally. Covering un-used openings prevents contamination of clean spaces.

A4-601 25 mm Aluminium A4-602 40 mm Stainless steel A4-603 50 mm Stainless steel A4-604 4-Way Cross KF Fitting Material 16 mm

11 Level Vacuum 1 Level 2 Fittings Elbow 90 KF Fitting Material 16 mm elbow Aluminium A mm elbow Aluminium A mm elbow Aluminium A4-523 Blanking Flanges Useful to cover unused ports or to prevent accidental venting of vacuum spaces when an associated valve is opened unintentionally. Covering un-used openings prevents contamination of clean spaces. Small particles entering a vacuum system can affect the sealing performance of valves KF Fitting Material 16 mm Stainless steel A mm Aluminium A mm Stainless steel A mm Stainless steel A Way Cross KF Fitting Material 16 mm Aluminium A mm Aluminium A mm Aluminium A For rest of world call Oxford Instruments Direct on +44 (0) oidirect.supercon@oxinst.co.uk

Vacuum Fittings Flanges, Short Weld Nipple These nipples are commonly welded to rigid or flexible tubing.

Nozzles Easily connect rubber tubing to a NW flange. Aluminium hose barb has 10 mm OD.

for high vacuum pumping lines or for conveying gases. End Fittings Bore & Length C1-901 NW16 0.25 x 1 m C1-902 NW16 0.25 x 2 m C1-903 NW16 0.

12 Vacuum Fittings Flanges, Short Weld Nipple These nipples are commonly welded to rigid or flexible tubing. KF Fitting Material 16 mm Stainless steel A mm Stainless steel A mm Stainless steel A mm Stainless steel A4-104 Adaptor Nozzles Easily connect rubber tubing to a NW flange. Aluminium hose barb has 10 mm OD. KF Fitting 16 mm A mm A4-702 Flexible Lines Oxford Instruments supplies a range of quality flexible lines fitted with NW flanges suitable for high vacuum pumping lines or for conveying gases. End Fittings Bore & Length C1-901 NW x 1 m C1-902 NW x 2 m C1-903 NW x 3 m C1-904 NW x 1 m C1-905 NW x 2 m C1-906 NW x 3 m C1-907 NW x 1 m C1-908 NW x 2 m C1-909 NW x 3 m 148 North and South America +1 (888) oidirect.supercon@ma.oxinst.com

Microscopy Cryogenic WORKSTATION. Performance by Design

CRYO Microscopy Cryogenic WORKSTATION Optical cryostat for use in microscopy and spectroscopy Performance by Design RC102-CFM Microscopy Cryostat offers fast cooldown, high efficiency, excellent temperature