 6 Reasons Why You
Should Switch to H-Seals
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 100% Manufacturing Yield with H-Seals
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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
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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
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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. |
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 Lower Compressive Force with H-Seals
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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
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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.
On the other hand, when metal O-Rings are compressed, they flatten, which increases the surface contact with the gland, which, 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
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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. |
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| Customers |
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For decades, Brooks products from Emerson Process Management have been at the forefront of flow measurement and control for critical applications. |
| "Simply great! I find H-seals better than traditional o-rings due to their ease of use in assembly and ability to make a seal of 1x10-10 atm cc/sec (and better), on a consistent basis. Their unique design makes the sealing surface resistant to damage caused by mishandling of product in and out of clean room. Additionally, Bostec has been on our "Preferred Supplier List" due to their commitment to supply us the quality parts on an on-going basis. They are always willing to contribute their expertise and enthusiasm in bringing new ideas and methodologies to design and manufacturing. By offering superior service levels and prompt adaptation to our dynamic business needs, they are truly dedicated to achieving their customer satisfaction...." |
| Muhammad B. Waheed |
Supplier Quality Engineer
Emerson Process Management, Brooks Instrument |
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MKS Instruments, Inc. is a leading worldwide provider of process control solutions for advanced manufacturing processes such as semiconductor device manufacturing; thin-film manufacturing for flat panel displays, optical storage media, architectural glass and electro-optical products; and technology for medical imaging equipment. |
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| THT Group, located in the heart of Silicon Valley supports the unique requirements of the high technology community. |
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