Search Products / "flange"

These flanges are manufactured on state-of-the-art CNC (computer controlled) lathes to insure consistently close dimensional tolerances, and extremely fine surface finishes.

In Aluminum and Stainless Steel.

Screws, Nuts, Washers

Use this to adapt ion gauge tubes to a 2 3/4" Conflat flange.

Double Flange Bolts Fitting

Tubing Adaptor Flange with o-ring seal

Large Flange Single Claw Clamp for your vacuum needs.

The below listed vacuum flange copper gaskets are made from OFHC copper.

Longer pump nipple for vacuum hose attachment or for custom welding applications.

Large Flange Double Claw Clamp for your vacuum needs.

In brass.

Weld Ring Flange, 304 Stainless fitting

made with Stainless steel

All feedthroughs supplied with mating connector for use with RG 58/U cable.

Short Weld Flange, 304 Stainless fitting

In Brass and Aluminum and Stainless

Short Weld Stub Flange, 304 Stainless fittings

Quick action aluminum clamp with finger closure "T" knob for positive sealing of NW flanges.

In Stainless and Aluminum.

in SS and Aluminum

Flange Adapter in Stainless Steel

Made in SS - washers are used in the assembly of vacuum systems.

Resilient 1/4"-28 Delrin nut with polypropylene O-ring ferrule.

All feedthroughs supplied with mating connector for use with RG 58/U cable.

These blank non-rotatable flanges are for sealing off ports, for drilling custom interfaces, feedthrus, or other accessories, and for modifications of vacuum equipment.

Create or restore flanged tubing connections with this handy tool.

Supplies needed in many sizes.

In Stainless, Aluminum and Brass.

For vacuum flanges.

Stainless union for connection NW flanges to Varian type conflat flanges.

In Stainless and Brass.

Flange Adapter with O-ring Attached

In Aluminum, Stainless Steel, and Brass

Many Fittings and Flanges in different sizes for your vacuum needs.

7056 Glass with Kovar sleeves and stainless steel flanges.

45 degree elbow for mating NW vacuum flanges.

Thin Wall - 10", 20", 40" & Thick Wall

Rigid metal extension for the union of vacuum fittings.

90 degree elbow for mating NW vacuum flanges.

Available with Viton® or Buna O-ring, this centering ring complete with O-ring should be used when joining any two NW flanges with a quick flange clamp.

Each 4-way cross has four NW flanges for up to 4 vacuum lines.

Three NW flanges permit the union of several pump lines.

QF To Pyrex Tube for your vacuum needs.

For connecting rubber or plastic hose to NW flanges.

Stainless steel nipples for clamping vacuum hose to NW flanges.

Vacuum Fittings 180 degree Stainless return.

Butt weld, can be used with orbital welders, and has thru holes.

Features Viton® O'Ring and 72 mesh screen.

These aluminum hose nipples have longer stems for better multiple clamping of vacuum hose. Other sizes and lengths can be custom manufactured by S.I.S.

Compression type quick connect with O-ring seal for connecting gauges or tubes to vacuum systems.

Aluminum Long Nipples for your vacuum needs.

QF Stainless Steel Reducing Tees Fittings

QF to QF Reducers, Aluminum fittings

Stubs have from 1/8" to 1" male NPT for junctions to NW flanges.

Available with Viton® or Buna O-ring, this reducing centering ring is for joining two different size NW flanges with a quick flange clamp.

Union for connecting two different size NW flanges.

Aluminum Long Nipples with 1/8" NPT tap in the side for the addition of gauge tubes.

S.I.S. supplies 'O' Rings for replacement in various models of Varian diffusion pumps.

Stainless Steel 12 inch Tubes

Koby Fitting in Stainless Steal

90 Degree Stainless Steel Elbow Fitting

90 Degree Stainless Steel Mitred Elbow Fitting

All gaskets are .080" thick.

304 stainless flange with optical quality borosilicate glass.

The following copper and gold plated copper gaskets are available for the vacuum flanges on Thermo/Finnigan mass spectrometers.

Easily mounts to Incos 50B, Accurate Vacuum Measurement, Bayard-Alpert Design, Convenient Bench Top Enclosure

The ease of assembly and disassembly of ISO components, together with the vast array of configurations available with this system result in a multitude of applications.

S.I.S. supplies 'O' Rings for replacement in various models of Varian diffusion pumps.

The CFT Series traps are an effective design, which reduces mechanical pump backstreaming to the vacuum chamber.

Hermetic, Sealed, In-line Oil Mist Separator For Mechanical Vacuum Pumps.

6.25" high, low cost, combined oil mist eliminator and charcoal filter proven effective for removing volatile and semi-volatile organics from exhaust of vacuum pumps.

S.I.S. carries copper and gold plated copper gaskets for the Varian Saturn.

These A&N vacuum fittings and assemblies are an economical system of reusable stainless steel connectors for 1/2", 3/4", 1", 1 1/2", and 2" O.D. tubing.

HPLC Maintenance Kits available from Scientific Instrument Services, Inc.

High-vacuum gauge, micro-ion E with flange, direct replacement for Agilent single quadrupole 6100/XX series, TOF 6200/XX series, triple quadrupole 6400/XX series, Q-TOF 6500/XX series. Replaces OEM p/n G1960-80303 SIS196080303 : -

1/4" Pipe to 1/2" Hose Fitting

Standard fillings on filters are 1/4" NPT.

Standard fillings on filters are 1/4" NPT.

Industry standard die-cast aluminum clamp.

The Assimilation Traps are similar to our Coaxial Foreline Traps in that they are used between the rough vacuum pump and the diffusion (or turbo) pump to prevent backstreaming of oil into the diffusion pump.

This wire can be used for the fabrication of O' Ring gaskets on instruments such as the Dupont Mass Spectrometers which do not utilize heated flanges.

The PTFE ‘O’ ring for use on the MAT90 side flange.

Zero-dead-volume fingertight connections are rated to 70 bar (1000 psi) for 1/16" tubing, 35 bar (500 psi) for 1/8" tubing.

The Model EO50/60 is a compact, fast warm-up air-cooled diffusion pump supplies complete with high integrity inlet Co-seal, and flange clamping ring. The jet assembly is removeable for easy cleaning.

Molecular Sieve Traps are effective for trapping hydrocarbons and water vapor.

The Granville-Phillips Model 330 Ionization Gauge Controller is reliable, easy to operate, easy to service and moderately priced.

The nEXT is a hybrid bearing compound turbomolecular pump. nEXT pumps combine our proven bearing technology (oil lubricated ceramic lower bearing with dry permanent magnetic upper bearing).

The nEXT is a hybrid bearing compound turbomolecular pump. nEXT pumps combine our proven bearing technology (oil lubricated ceramic lower bearing with dry permanent magnetic upper bearing).

The nEXT is a hybrid bearing compound turbomolecular pump. nEXT pumps combine our proven bearing technology (oil lubricated ceramic lower bearing with dry permanent magnetic upper bearing).

Adixen Pump Filter Kit and accessories for your vacuum pump needs.

The vacuum measurement system to monitor the source pressure is optional for the 5971.

Edwards Pump Filter Kit and accessories for your vacuum pump needs.

The EXT75DX is a hybrid bearing compound turbo pump that combines the proven technology of a ceramic mechanical lower bearing.

Heated Thermal Desorption Sampling chamber

6.25" high, low cost, combined oil mist eliminator and charcoal filter proven effective for removing volatile and semi-volatile organics from exhaust of vacuum pumps.

Edwards Pump Filter Kit and accessories for your vacuum pump needs.

Vacuum Pumps for your lab needs in many sizes and capabilities.

Dual-stage, high-performance rotary vane pump.

Dual-stage, high-performance rotary vane pump with a pumping speed of 9 m.

Dual-stage, high-performance rotary vane pump with a pumping speed of 2.5 m.

Dual-stage, high-performance rotary vane pump with a pumping speed of 5 m.

Scientific Instrument Services provides a mass spectrometer source cleaning service. We can expertly clean and service most models of mass spectrometer sources including filament repair. Fast turn-around of repairs. Cleaning of entire source block, lenses, insulators, filament and repeller assembly.

Scientific Instrument Services provides a mass spectrometer source cleaning service. We can expertly clean and service most models of mass spectrometer sources including filament repair. Fast turn-around of repairs. Cleaning of entire source block, lenses, insulators.

Rugged, powerful turbopump with a pumping speed of up to 260 l/s for N2.

Our standard G75K Bayard-Alpert ion gauge tube will fit all models of HP mass specs except the HP5989 MS Engine.

O-Rings are available in five different materials from Scientific Instrument Services.

Vacuum pumps by SIS, Edwards, Adixen and Pfeiffer.

The Granville Philips Convectron Gauge tube used on the 5971 and 5972 mass spectrometers is available from S.I.S. This is a direct replacement for the HP original and screws into the fitting shown above.

This miniature two stage pump features an alternative inlet connection position at the side of the pump so that overall installation height can be reduced to a minimum when required.

SIS at ASMS 2017: NIST 17, thermal desorption, SIMION, transfer tubes, ion gauge for 6000 series, and more

When vacuum pumps are first turned on they usually emit a considerable quantity of oil vapors into the air.

Small yet powerful turbo pump with a pumping speed of up to 67 l/s for N2.

S.I.S. offers a full line of flange fittings for all models of vacuum pumps, diffusion pumps, and vacuum systems.

Reduce chance of computer head crashes and Prevent carcinogenic and caustic fume emissions

Adixen I Series Rotary Vane Pumps address all major requirements of the most sensitive applications of analytical instruments.

Adixen I Series Rotary Vane Pumps address all major requirements of the most sensitive applications of analytical instruments.

Adixen I Series Rotary Vane Pumps address all major requirements of the most sensitive applications of analytical instruments.

Adixen I Series Rotary Vane Pumps address all major requirements of the most sensitive applications of analytical instruments.

These pumps are recommended for general vacuum applications in industry, research laboratories, and wherever else portability and lightweight, vibration-free operation is essential.

These pumps are recommended for general vacuum applications in industry, research laboratories, and wherever else portability and lightweight, vibration-free operation is essential.

These pumps are recommended for general vacuum applications in industry, research laboratories, and wherever else portability and lightweight, vibration-free operation is essential.

These pumps are recommended for general vacuum applications in industry, research laboratories, and wherever else portability and lightweight, vibration-free operation is essential.

These pumps are recommended for general vacuum applications in industry, research laboratories, and wherever else portability and lightweight, vibration-free operation is essential.

Eliminates the accidental venting of the mass spectrometer via the probe inlet

Selectable dual mode, high vacuum for best pressure, and high throughput mode for continuous inlet pressure above 50 mbar.

Adixen I Series Rotary Vane Pumps address all major requirements of the most sensitive applications of analytical instruments.

Has been designed to prevent the occasional venting of the mass spectrometer by accidentally pulling the probe past the vacuum seals.

Selectable dual mode, high vacuum for best pressure, and high throughput mode for continuous inlet pressure above 50 mbar.

Selectable dual mode, high vacuum for best pressure, and high throughput mode for continuous inlet pressure above 50 mbar.

Selectable dual mode, high vacuum for best pressure, and high throughput mode for continuous inlet pressure above 50 mbar.

Selectable dual mode, high vacuum for best pressure, and high throughput mode for continuous inlet pressure above 50 mbar.

Highest Long-Term Accuracy Vacuum Gauge from Granville Phillips and Improved Long-Term Accuracy

Automated direct insertion probe for the Thermo PolarisQ™ and TRACE DSQ™ mass spectrometers. Samples in about 3 minutes. Open Access and Xcalibur™ integration.

PTFE is a popular o-ring which is white in color. The PTFE o-rings are popular for use in applications which require a chemically resistant and non-compressible material.

O-Rings are available in five different materials from Scientific Instrument Services.

19201007 : OEM=Edwards,Part Type=Valves,Description=Valve Piston,Pump Models=E1M40;E2M40,20404011 : OEM=Edwards,Part Type=Bearings,Description=Roller Bearing EM40,Pump Models=E1M40;E2M28;E2M30;E2M40,25904601 : OEM=Edwards,Part Type=Misc,Description=Ballast Valve E1M80,Pump Models=E1M40;E2M40,29201006 : OEM=Edwards,Part Type=Sight Glasses,Description=Sight Glass E1M80,Pump Models=E1M40;E1M80;E2M40;E2M80,00307046 : OEM=Edwards,Part Type=Springs,Description=SPRING,Pump Models=E1M18;E2M18,00714012 :...