serving technology companies worldwide for  25 years

 Box 880462

Boca Raton, FL 33488

and Burlington, Mass

TEL: 1-561-558-0103    FAX:  1-561-558-0104   Pager: 1-888-785-5236

Proud to Represent:

Custom Engineered Seal Solutions

Why  Switch to H-Seals

100% Manufacturing Yield with H-Seals

H-Seals deliver an Ultra-High-Vacuum seal 100% of the time. Guaranteed, or we’ll replace the H-Seal at no cost. This is as opposed to traditional metal O-Rings that often deliver manufacturing yields of less than 50%. Traditional metal O-Rings are fragile and difficult to handle the clean-room. Even minor surface scratches may cause significant leaks resulting in low assembly yields and high rework costs.

Alignment Retainers Not Required H-Seals™ are self aligning, which saves the cost of retainers that are required with traditional metal O-Rings. Assembly is simplified and costs are reduced.  No Gland Damage with H-Seals With H-Seals, the soft nickel seal is sacrificed; not the gland. H-Glands can generally be reused for 15+ cycles with no loss of sealing capacity. Metal O-Ring glands, on the other hand, must often be re-polished or re-machinged every time the part is disassembled because the metal O-Ring deforms or damages the gland.

Lower Compressive Force with H-Seals
	H-Seals generally require only 20-50% of the compressive force required for metal O-Rings allowing smaller and fewer fasteners. Space, time and money are saved.

Seal Integrity Increases with Compression

With H-Seals, the tooth remains sharp throughout the entire penetration process, so the more force applied, the stronger the seal becomes. The H-Seal itself acts as a positive stop so there is no risk of over-tightening. In contrast, when metal O-Rings are compressed, they flatten, which increases the surface contact with the gland. This, in turn, reduces the force imposed per unit area. Consequently, as metal O-Rings are tightened, their ability to seal diminishes.

Delicate, Highly Polished Surfaces Not Required

H-Seals achieve a leak tight seal by conforming a soft Nickel gasket, and minor machining irregularities are absorbed by the H-Seal. Lapping and polishing steps are eliminated and manufacturing costs are drastically reduced with H-Seals. In contrast, metal O-Rings demand highly polished surfaces finishes on both gland faces and on the O-Ring itself. Even minor scratches or imperfections may cause leaks. Consequently machining and handling costs are high.