Condensate Polishing System Shipped to University in Massachusetts

A triple all stainless steel condensate polisher was shipped to a university in Cambridge, Massachusetts.  The system is designed to treat 445 gpm of condensate and is replacing an existing unit which had reached the end of its life.  This is part of a major upgrade of the steam plant including the condensate polishers, a triple dealkalizer system, which Res-Kem will provide in November, and a deaerator.

Res-Kem Triple Stainless Steel Condensate Polishing System

Here are the key features of the condensate polisher:

• For long equipment life, the system has three, 54" ASME-code tanks manufactured in 304 L stainless steel. 
• To simplify field installation, the system includes inlet, outlet, drain, backwash supply, brine and sub-surface wash headers.
• The condensate polisher incorporates Bray 31 series butterfly valves with 92 series air open/air close actuators.
• We supplied a custom designed FRP NEMA 12 panel with an Allen Bradley PLC with three solenoid boxes..
• 304L stainless steel face piping.
• Regeneration initiated via totalized flow or differential pressure.
• The flow sensors to measure the treated condensate from each of the vessels were supplied by others.
• The differential pressure switches are Orange Research 1203 DP transmitters with 4-20 mA output.
• A subsurface wash is included to increase the time between regenerations increasing total energy efficiency.
• A brine distributor for reduced salt usage
• A separate source backwash is included to increase condensate heat recovery.
• To prevent downstream damage, stainless steel resin traps are included in the treated water line.

Condensate Polishing System Being Off-Loaded at Customer's Site

Given the small space where the system is located, the standard design of the condensate polisher had to be re-engineered.  For example:

• The three pressure vessels could not be evenly placed because a vertical support beam would be in the way making each header piece unique.
• A height restriction required numerous engineering design iterations to get the system in the space allotted.
• All headers needed to be nested in a very small envelop on the front of the system.

Additional information:


Condensate Polisher Checklist Webpage Version
Condensate Polisher Checklist - PDF Version
Condensate Polisher System Brochure
Need Applications Engineer

RO Systems for Industrial & Commerical Water Treatment

Res-Kem now offers four new Reverse Osmosis (RO) system series with product flow rates of up to 700 gpm.

XL Series RO 12 - 700 GPM
These RO systems can control your entire water treatment system. By simply activating standard features through a Color Panelview Plus touchscreen HMI, the operation of the pretreatment, RO system, RO tank level, recirculation pump, and post-treatment DI is coordinated, controlled and monitored. Virtually seamless operation of any system is realized. Through the X-Web™ service, we can be remotely monitor the entire XL Series RO system and alarms.

Built to last design with stainless steel frame and high pressure piping, high efficiency stainless steel multi-stage Grundfos pump with TEFC motor and Dow Filmtec XLE 440 low energy membranes. XL Series RO has features only available on custom industrial systems.

CL and CLD Series RO 3,200 - 69,000 GPD

These RO systems can control your entire water treatment system. By simply activating standard features through a Color Panelview Plus touchscreen HMI, the operation of the pretreatment, RO system, RO tank level, recirculation pump, and post-treatment DI is coordinated, controlled and monitored. Virtually seamless operation of any system is realized. Through the X-Web™ service, we can be remotely monitor the entire system and alarms .

These system have a rugged design with stainless steel frame and high pressure piping, high efficiency stainless steel multi-stage pump with TEFC motor and Dow Filmtec XLE 4040 low energy membranes. These systems have features only available on custom industrial systems.

CLT Series RO 3,200 - 34,500 GPD
The CLT Series RO has a rugged design with stainless steel frame and high pressure piping, high efficiency stainless steel multi-stage pump with TEFC motor and Dow Filmtec XLE 4040 low energy membranes. Has features only available on custom industrial systems.

ML Series RO 1,500 - 8,900 GPD
The ML Series RO has a rugged design with stainless steel frame and high pressure piping, high efficiency positive displacement pump and Dow Filmtec XLE 4040 low energy membranes. These systems have features only available on custom industrial systems

Automatic DI Bank Switching and Data Acquisition Controller

Res-Kem has developed an integrated DI Bank Switching and Data Acquisition Automation Controller. The system monitors the inlet and outlet resistivity and the flow rate. At one of several alarm points, the system will send a text message to any number of email addresses and mobile devices. As part of a service agreement with Res-Kem/General Water, the system will warn Res-Kem/General Water personnel to prepare for a replacement of the soon to be exhausted bank of DI bottles.

Depending upon the system programming the bank will attempt to rinse to quality in several stages. If it does not succeed, the bank will switch to a standby bank and notify Res-Kem that the bank is exhausted fully and needs to be changed out.

The reason why Res-Kem developed this product is many people were having problems getting replacement parts and proprietary circuit boards for the excellent product called the Aquaswitch II a registered trademark of Myron L. Also, with reduced staffing at most of our customers, people do not have the time to monitor a stack light or resistivity monitor. As a result, the quality can be poorer than required potentially damaging down stream processes and products.

A200 Stager Control from Aquamatic Discontinued

Soon after we completed changes to our website, discussed in our previous blog post, a discontinuation notice was Res-Kem just received in the mail from Aquamatic about the A200 Stager Control. After March 13, 2009 the controller, also called an A200 Impluse Stager Control, will no longer be available. The reason given was "despite their lengthy time on the market, (these products) have experienced low demand and declining sales in recent years. As a result, Pentair is making the difficult decision to eliminate these lines so it may focus on growing its core Aquamatic Valve and Control business."

Possible Solution:
A potential replacement could be the 962 Stager Control series from Aquamatic. If you contact Res-Kem we can help you determine if it will work for your application and how it may need to be configured to work.

Automation and Control of Water Treatment Systems

Res-Kem receives requests for quotation and information to automate and control industrial water treatment equipment like activated carbon, water softeners, reverse osmosis systems (RO), DI, service DI, electro-deionization (EDI), continuous deionization (CDI), ultrafiltration (UF) mixed beds, sub micron filtration, etc. using electro-mechanical timer/stagers and programmable logic controllers. We can readily respond to these requests.

In addition, Res-Kem has been receiving requests for quotation and information to automate and control other water systems for:

Odor Control

Influent Clarification

Cooling Towers

Boilers

Waste Treatment

Remote & Online Monitoring

pH Neutralization

Wastewater Control

Environmental Monitoring

Environmental Sampling

Material Handling

Res-Kem is now able to offer solutions to these automation and control needs.