Valve Magazine - Summer 2009

ANALYZERS CONTROL
COUNTERFEIT ALLOY
MATERIALS

Thermo Scientific Niton handheld XRF analyzers verify critical alloy materials, preventing grade mix-ups and are already in use by many major valve manufacturers and repair shops as part of positive material identification (PMI) programs. Now, the Niton XL3t with GOLDD technology provides immediate, nondestructive chemical analysis of aluminum, titanium and nickel alloys, as well as superal-loys, stainless steel and other metals—without helium or vacuum purge.

When combined with the new electronic position indicator, which is available exclusively with Niton XL3 Series XRF analyzers, users can electronically store PMI grade data directly on the valve using a field-hardened “button” smaller than a dime. The new product operates via a battery-free, read/write, data storage device, and is designed to perform and reside in extreme environments, such as those found in petrochemical, utility power and manufacturing plants—both indoors and out.

By combining accurate alloy-grade identification with elec-

tronic storage of the data, including time and date stamp of the measurement, inspectors and end users of valves intended for critical applications can reduce the risk of installing counterfeit materials. FOR MORE INFO: WWW.NITON.COM

GRAPHITE PRESSURE
SEAL PROGRAM

EGC Enterprises, which provides graphite pressure seals for critical high-pressure valves, announces

VSG. In designing the product,

EGC focused on a rapid-fabrica-tion, zero-tool cost system to produce Thermafoil graphite pressure seals—working in partnership with valve OEMs, valve repair firms and power generation facilities.

VSG is a Thermafoil flexible graphite seal with stainless-steel top and toe caps that performs at leak-free levels. The key difference in VSG compared to the standard EGC pressure seal is elimination of production molding tools, resulting in greatly reduced lead-time and tooling costs. During the past year VSG pressure seals have been installed in fossil, nuclear, gas-fired and pulp & paper power house pressure seal valves.

FOR MORE INFO: WWW.EGC-ENT.COM

Chem-Plug® sleeved valves are available with a diaphragm or V-ring top seal. Chem-Plug® sleeved valves are offered as ANSI Class 150 or Class 300 in sizes ½” - 12”. Pressure ratings are 275 psi (Class 150) and 720 psi (Class 300) with temperature ratings up to 500°F (260°C) depending on sleeve material.

Chem-Plug® fully lined valves are available with a diaphragm or V-ring top seal configuration for use in applications up to 400°F (204°C). Lined valves are available with ANSI Class 150 or Class 300 flanged end connections in sizes ½” - 6”.

Permaseal®

Permaseal® plug valves from SMG have a unique design that includes a non-lubricated, tapered plug and two individual seats that provide a double seal and bi-directional shutoff. Thrust from spring washers provide a self-adjusting stem seal and automatic compensation for both seat wear and thermal expansion. Ranging in sizes ½”- 6”, Permaseal® valves offer corrosion resistance and temperature ratings to 1000°F (540°C). Permaseal® valves are pressure rated at 285 psi (Class 150) and 740 psi (Class 300).

KEY PORT®

KEY PORT® 400 series eccentric plug valve offers compact size, light weight, and high flow capacity.

KEY PORT® Valves are U.L. Listed and CSA Certified. KEY PORT® valves are available in screwed, flanged, and dresser end styles. Sizes range ½” - 6”. KEY PORT® comes in ANSI Class 125 for use up to 175 psi (1200 kPa) and 300°F (149°C).