August 2009, Vol. 21, No.8


The submersible turbine pump is available in 4-, 6-, and 8-in. models, with the 8-in. pump achieving a flow rate up to 1000 gal/min. The discharge, intermediate bowls, and motor brackets are made with class 30 cast iron to increase efficiency and abrasion resistance, and the impeller is made of balanced, lead-free silicon bronze. It is also available in custom sizes of 10-, 12-, and 14-in. Griswold™ Pump Co. (Thomasville, Ga.).

Valve Discs
Chlorinated polyvinyl chloride (CPVC) discs for the type 57 butterfly valve line offer chemical resistance and mechanical strength, stiffness, and dimensional stability. CPVC discs enhance safety and performance in aggressive chemical environments. They are available in 3-, 4-, 6- and 8-in. models. Asahi/America Inc. (Malden, Mass.).

Drum Pumps
These drum pumps are made of chlorinated polyvinyl chloride, polypropylene, stainless steel, aluminum, and Kynar®. They can be used with acids, sodium hypochlorite, and alkaline liquids and can pump viscous liquids of 700 or 4000 SUS. The pumps are interchangeable with standard open motors, explosionproof motors, or air motors. Serfilco Ltd. (Northbrook, Ill.).

The Spiralift® SL system fine-screens, washes, transports, and compacts channelborne wastewater solids, leaving organics in the flow. The integrated system includes a Taskmaster® grinder, a shaftless screw screen, and a PLC-based control system that uses flow level data to cycle the screw. It can be supplied with electric or hydraulic drives for various channel widths, flow, and lift requirements. Franklin Miller Inc. (Livingston, N.J.).

Metering Pump
The Moyno® chemical metering pump is made for low-flow liquids in applications such as dosing, sampling, and metering. It features pressures up to 300 lb/in.2, and flow rates from 1 to 190 gal/h. The pump is available in bare-shaft, close-coupled, and motorized configurations. Moyno (Springfield, Ohio).

The Stormbloc™ belowground stormwater infiltration system is a columnar block-type structure that provides soil infiltration. It incorporates a Stormbloc Inspect for tunnel access, enabling inspection and flushing of the system, and weights of 25 to 40.5 lb. Hydro International (Clevedon, England).

Monitoring System
The Dedicated Controls system is designed for controlling up to two pumps and a mixer–flush valve in wastewater pumping stations. Monitoring functions include pumped volume and overflow durations, and communication options offer SCADA and BMS communications using GSM–GPRS. Grundfos (Bjerringbro, Denmark).

The Fisher® 2052 spring-and-diaphragm rotary actuator can be installed on rotary-shaft valve bodies for throttling or on–off applications. The actuator linkage features a clamped shaft level and a single pivot point. It is available in three sizes, built for shaft sizes from 12.7 to 38.1 mm. Emerson Process Management (St. Louis).

Editor’s note: WE&T assumes no responsibility for claims made in product descriptions. Interested companies should send press releases and photos to .

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