PLATING
Female threads are silver plated to reduce the risk of galling and to improve the remakeability of the fitting. This highquality plating also reduces the torque required for fitting assembly. Reference Spec: Meeting and exceeding - Mil Spec: QQ-S-365. Note: Do not apply any type of cleaning acid and/or electropolishing solutions to any female threads. These solutions damage the silver plating and invalidate any expressed or implied warranty.
WELDING
Options: butt weld, shoulder weld, socket weld. Reference Specs: All welded products are manufactured and welded according to SEMI F75,F81.
TESTING
HAM-LET follows the relevant ASTM, ANSI, ASME, ISO, SEMI & SEMASPEC standards for testing and for qualifying processes and results.
JAPANESE STANDARDS
HAM-LET, upon request, manufactures the HTC product line to meet Japanese standards:
• Low Manganese Material Specifications (JIS).
• Wall thickness.
• Hardness.
HELIUM LEAK
All HAM-LET Face Seal products are tested and qualified to a helium leak rate of less than 3x10-10 std cm3/sec. Reference Spec: SEMI F1.
SURFACE FINISH
Reference Spec: ANSI B46.1 and ISO 4288.
SURFACE ANALYSIS
SEM/EDX/AES analysis is used to monitor surface defects per ASTM F1372 and ASTM F1375.
MOISTURE ANALYSIS
Based on ASTM F1397.
PARTICLE CONTRIBUTION TEST
Based on Semaspec 90120390 B.
SURFACE CHEMISTRY
All UHP products are electropolished with a proprietary process for achieving and exceeding the Sematec Standards of surface cleanliness and anticorrosion requirements. Parameters are measured by SEM, AUGER, ESCA. Reference Spec: SEMI F19; E49.9; SEMASPEC 91060573A-STD.
CLEANING SPECIFICATIONS
According to # H9800. Reference Spec: SEMI E49.3.
MATERIAL TRACEABILITY
All HTC components are Heat Coded for full traceability.
ASSEMBLY
According to SEMI E49.6.
ACCESSORIES
Grip Kit, Plastic Bead Protector.
PACKAGING
Each “E” finished component is double bagged to ensure component cleanliness and to protect it from environmental contamination. The inner bag is Nylon 6 and vacuum sealed. The outer bag is polyethylene. Reference Spec: SEMI E49.1.
INTERNATIONAL CERTIFICATIONS
ISO 9001, Certified by S.I.I.
* 3/4’’ & 1’’ sizes are not standard, but can be manufactured on request Pressure ratings are calculated in accordance with ANSI Code for Pressure Piping ANSI B-31, for stainless steel fittings. All working pressures are at 4:1 safety factor. Pressure indicated in the catalogue is at room temp.
GRIPKIT
Gripkit® is a patented product designed to help preventing potential leaks in metal-gasket face-seal fittings. The Gripkit® is designed for use with critical, semiconductor-industry ultra-pure and high-purity gasapplications, as well as vacuum delivery systems. The product is color coded for easy identification within the system and is engineered to be used with the fitting components of most major manufacturers.
HOW IT WORKS
The Gripkit® fixes the position of the male nut relative to the female nut, and therefore, the distance between the two sealing glands. Consequently, when torque is applied to either side of the fitting connection, it does not cause the nuts to rotate in opposition and lose their compression on the gasket. In extreme cases, when very high torque is applied to the fitting joint, the glands may rotate within the fixed nuts, but the connector will remain intact. Gripkit will prevent the kind of catastrophic leak that results from the loss of gland compression on the gasket.
WHY USE GRIPKIT®?
When pipe fitters, maintenance technicians and operators work on gas distribution systems, they can accidentally “torque” the system, causing fittings down-line to come apart. Most veteran gas system engineers recognize this common phenomenon. Another widespread problem occurs when a fitting connection “shakes apart” because it is mounted on, or near, vibrating equipment. Sources of system vibration include pumps, motors, pneumatic actuators, as well as mobile equipment. Gripkit® offers a very inexpensive solution to these real and potentially costly problems.