January 2009 Equipment & Services

hemiwedge valve
Metal-Seated Valve Boasts Removable Cartridge

The Cartridge Valve is claimed to have a revolutionary mechanical-seal design for critical service applications. The valve uses aspects of ball valves, gate valves, and even triple-offset butterfly valves to protect the sealing surface during valve operation. A tapered hemispherical closure member (the hemi) rotates around a fixed core and wedges into a fixed seat to affect a mechanical seal. The closure member is rotated a quarter-turn by a valve stem that may be operated manually with a wrench or gear operator or automatically with a pneumatic, hydraulic, or electric actuator. It features a constant fixed core within the body to provide protection of the seating surfaces when the valve is opened, as well as minimizing turbulence as the valve is either opened or closed. The cartridge design affixes all the valve’s internal parts (core, hemi, seat, stem, bushings) to the bonnet and may be removed by unbolting the bonnet fasteners and lifting the cartridge from the valve body.

Hemiwedge Valve Corp. Inc.
(936) 539-5770


Thermal Treatment Turns Biosolids into Gas
The Pyrobustor is a two-stage process, utilizing pyrolysis in a proprietary rotary drum followed by a post combustion system, to transform biosolids, sludge and other organic waste into an energy-rich gas. The residual non-volatile ash encapsulates minerals and metals, if present, into a stable inert form that permits disposal in landfills as a non-hazardous material. Depending on local market needs, the ash can also be used as filler for road construction, concrete products or similar applications. The unit is designed to treat biosolids streams of up to one dry ton per hour. The space and energy efficient system works in conjunction with a dryer system to provide a 10:1 volume or mass reduction of dewatered biosolids. Waste heat from the system can be recovered for use by the dryer system or utilized to generate steam or “renewable” electrical power. Carbon credits may be provided from the reduction in emissions from transportation of the biosolids, and from generation of electrical power.

Eisenmann Corp.
(815) 477-3232


Flowmeters Offer Custom Calibration

Used to measure liquid and gas flow rates by means of a tapered tube and float, these variable area Swagelok flowmetersflowmeters (VAF)  provide highly accurate measurement with individually calibrated scales and a 10:1 turndown ratio. The VAFs are factory calibrated and marked to indicate the specific media, flow range and accuracy class. In addition, the product can be calibrated and marked to customer-specific applications. There are 10 variations of the VAFs to choose from. The VAFs are fitted with glass or metal measuring tubes. The G series models feature glass measuring tubes, which enable direct view of the process reading and flow at the meter. A miniature glass-tube model, as well as a glass-tube model with plastic end connections, also are available.


Sensor Suits Wireless Network
The SureCross temperature and humidity sensor is optimized for use with the SureCross Wireless Network. The sensor is factory-calibrated to determine relative humidity to ±2% or ±3.5% (depending on model) and Banner Engineering delivers temperature accuracy to ±0.3°C for simple critical data monitoring. Manufactured with a rugged metal housing and IP67 electronics, it provides maintenance-free operation in a wide variety of environmental monitoring applications. It has a proprietary serial sensor interface that enables the sensor and the wireless node to operate on a Flex Power battery supply for up to 20 years. Fixed and remote-mount node and sensor models enable a wide range of installation scenarios, including in-duct and freestanding applications.

Banner Engineering Corp.
(888) 373-6767



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