July 2020

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× COMMENTARY

Awarding 'green chemistry'
One important challenge that continues to receive the attention of…

COVER STORY

Controlling Reboilers Heated by Condensing Steam or Vapor
Methods for controlling reboilers in distillation towers are central to…

IN THE NEWSNEWSFRONTS

Advances in Filtration
Presented here are a few recent developments in filtration, including…

CHEMENTATOR + Show More

Na-ion battery design eliminates crystal formation
Researchers at Washington State University (Pullman, Wash.; www.wsu.edu) and Pacific…

FOG separation technology expands to new application areas
Fats, oil and grease (FOG) waste can create environmental problems…

Improved catalyst production lowers electrolysis costs
Water electrolysis is widely used for hydrogen production, but there…

High-resolution 3D-printing makes small, structured parts
Manufacturing of centimeter-sized test specimens for material characterization according to…

Pilot plant produces apatite from mine waste
In a project called ReeMAP, LKAB Minerals AB (Luleå, Sweden;…

Producing hydrogen (and more) from biomass
A new electrochemical system that uses biomass-derived lignin to produce…

Chementator briefs
Isononyl alcohol Last month, Dow, Inc. (Midland, Mich.; www.dow.com) and…

JDA to advance conversion of syngas to ethylene
A recently announced joint development agreement (JDA) between Enerkem Inc.…

BUSINESS NEWS

Plant Watch: CPI Business News for July 2020
Plant Watch Repsol plans new synthetic fuels, pyrolysis plants in…

TECHNICAL & PRACTICAL

Owning Your Career: Taking a Hard Look at 'Soft' Skills
A personal development strategy helps to set engineers up for…

FEATURE REPORT

Seal Considerations to Reduce Fugitive Emissions
By understanding the basics of industry standards, such as API…

FACTS AT YOUR FINGERTIPS

Facts at your Fingertips: Cyclone Separators
Removing solids from a stream of air or other gases…

TECHNOLOGY PROFILE

Technology Profile: Isopropyl Alcohol Production from Acetone
This column is based on “Isopropyl Alcohol Production from Acetone…

ENGINEERING PRACTICE

A Simplified Approach to Crystallization Mass Balances
In continuous crystallization, it is often challenging to accurately measure…

EQUIPMENT & SERVICESFOCUS

Focus on Temperature
The world’s first temperature transmitter with Bluetooth Last November, this…

NEW PRODUCTS + Show More

Low-maintenance, heavy-duty flexible conveyors
The new Flexifeeder line of flexible screw conveyors (photo) offers…

Level switches for dust collectors and more
The DJ level switch (photo) provides high- or low-point level…

Two new sizes of turbomolecular pump introduced
This company has expanded its Turbovac i/iX series of turbomolecular…

Multipurpose furnaces streamline loading and unloading
New GS2026 bench-mounted box furnaces (photo) include a spring-assist vertical-lift…

This turbidity sensor withstands aggressive media
The new Turbimax CUS50D sensor (photo) is an absorption sensor…

A new range of sealless pumps with new capabilities
The new CSA Range of sealless pumps (photo) are designed…

A skid-mounted RO system for high-purity water production
Through its business unit Solys, this company launched the Sirion…

Digitalization adds value to compressor and blower units
AERprogress is a suite of customized digital services for compressors…

Leak detector for easy and accurate 'sniffing' operations
This company has launched the ASM 306 S (photo), which…

Access and control flowmeters from a smartphone
Edge Flow Electronics (photo) interface with positive-displacement or turbine flowmeters…

Point-to-point, wireless I/O modules for remote locations
With a rugged NEMA 4X/IP68 industrial housing, the new VWB2000…

Continuous processors quickly mix fast-reacting materials
This company’s Continuous Processors (photo) feature a proprietary design that…

Cutting cost and preventing damage with two valves in one
The RTK Discharge and Pump Protection Control Valve (photo) provides…

Diaphragm globe valves that integrate into multi-port blocks
This company now offers solutions for manufacturing diaphragm globe valves…

Highlights A Better Battery: An Overview of Solid-State Technologies Owning Your Career: Taking a Hard Look at 'Soft' Skills Awarding 'green chemistry'Technology Profile: Isopropyl Alcohol Production from Acetone Facts at your Fingertips: Cyclone Separators

Comment

Cutting cost and preventing damage with two valves in one

By Chemical Engineering | July 1, 2020

Circor International

The RTK Discharge and Pump Protection Control Valve (photo) provides a suitable solution for all industrial processes that incorporate pumps, such as condensate pumps, boiler feedwater pumps or low-pressure centrifugal pumps. The RTK control valve works as two valves in one: it brings together a pump-protection recirculation valve and a control valve. In this capacity, the valve not only cuts costs, but also increases the life span of pumps by both regulating the main flow and the recirculation flow with a single valve. The recirculation feature provides an inline-adjustable recirculation port, which allows users to control the valve inline while the pump is working. — Circor International, Inc., Burlington, Mass.

www.circor.com/rtk

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