NW fittings are the industry standard for vacuum components in the low and medium vacuum range and can be found on a variety of equipment.

Butt weld/ISO-KF/ CF UHV Fittings including reducer, elbow, tee, cross, full nipple

We offer a range with any of three drive systems (manual, single pneumatic, double pneumatic), four types of body (right-angle valve, Z inline, Y inline, all metal) and Ball Valve.

PVS work from your rough sketches, and prepare complete production drawings on our drawing system using the latest version of software. Design and manufacturing engineers are always on hand to offer advice regarding specification, design and engineering.The following pages contain photographs and production drawings of chambers we have fabricated. To insure you receive exactly what you need, we provide you with complete production drawings for your review and written approval, before fabrication begins. Approved prints minimize the possibility of design and/or manufacturing errors.

To achieve a vacuum seal, a centering rings is required. These centering rings are used for mating KF & ISO flanges and include both the centering ring and o-ring.An elastomeric o-ring gasket can be made of NBR, viton, silicon rubber or teflon.

Gate Valve HV & UHV gate valves are available for different flange (KF, ISO and CF). There are manual and pneumatic operation selectable.

The flex couplings are commonly used to build foreline vacuum pluming and process systems. The standard sizes for quick flange fittings KF-NW, ISO & CF Flanges

ISO fittings are joined by a centering ring and an elastomer o-ring.

We offer a range with any of three drive systems (manual, single pneumatic, double pneumatic), four types of body (right-angle valve, Z inline, Y inline, all metal) and Ball Valve.

There are two major categories of adapters: one combines pairs of standard vacuum flanges and the other combines standard fittings with flanges. All Hybrid Adapters, except the KF to Swagelok or VCR adapters, include at least one non-metal seal and are therefore limited to high vacuum applications.

We offer a range with any of three drive systems (manual, single pneumatic, double pneumatic), four types of body (right-angle valve, Z inline, Y inline, all metal) and Ball Valve.

CF fittings use a copper gasket and knife-edge flange to achieve an ultrahigh vacuum seal.

We offer a range with any of three drive systems (manual, single pneumatic, double pneumatic), four types of body (right-angle valve, Z inline, Y inline, all metal) and Ball Valve.