Complete Water and Wastewater Treatment Solutions
Stranco®, Memcor®, Wallace & Tiernan® and Electrocatalytic systems deliver cost-effective, reliable water and wastewater treatment systems and services to municipal, industrial, commercial and leisure customers worldwide.
Wallace & Tiernan Products
Evoqua Water Technologies is the premier provider of total disinfection and chemical dosing solutions. Our extensive portfolio, which includes the trusted Wallace & Tiernan product line, is designed to meet your most rigorous demands in virtually any water application and give you access to both the latest advances and widest range of proven technologies.
Serving the needs of municipal, industrial and aquatic customers globally, Evoqua Water Technologies helps customers conserve, protect and manage the world’s limited water resources.
This well-known product line is manufactured in the United States, United Kingdom and Germany with sales and distribution centers strategically located around the world. To protect your investment in our premium quality equipment, we deliver unrivalled after-sales service packages - including technical support, training, on-site service and spare parts - provided by a worldwide network of factory trained and dedicated professionals.
Gas Feed Equipment and Control
About 100 years ago, Charles F. Wallace and Martin F.Tiernan installed the first chlorinator in New York, and since, chlorine gas has been the predominant chemical for the disinfection of water.
Our chlorinators operate using the all-vacuum principle, which means that there is a vacuum from the cylinder up to the injector. All of the gas feeders are based on the worldwide proven V-notch flow control technology which provides a wide control range and very high repeatability. Control of the gas feed rate can be adjusted manually or automatically via an electric positioner.
The full vacuum gas feeder and our other models can also be used for metering carbon dioxide (CO2) for lowering the pH, and for hardwater conditions of potable water. The full vacuum gas feeders are also suitable for sulphur dioxide (SO2) for dechlorination applications, and for ammonia (NH3).
As optional accessories for the automatic chlorine cylinders change over, units in various capacities are available. When switching over from empty to full chlorine containers the continuously uninterrupted gas supply is provided.
S10K Sonic Chlorinator
The Wallace & Tiernan® S10k chlorinator is an all vacuum operated, sonically regulated unit. It provides economic, low capacity gas feed applications for municipal and industrial water and wastewater disinfection, swimming pools and industrial process water.
Wallace & Tiernan® S10k is able to handle all water treatment gases. It has flexible mounting configurations for cylinders, manifolds or ton containers provides versatility for all installations. Two basic arrangements are available in capacities of 200 and 500 pounds per day(4 and 10 Kgs/hr) of chlorine gas. With fewer internal parts, the S10k provides reliable, dependable service.
Features and Benefits
- Positive indication of operating status
- Positive shutoff
- Unique secondary check
- Captive universal yoke mounting
- Two basic arrangements are available in capacities of 200&500 pounds per day( 90 & 225 Kgs/day) of chlorine gas.
- Handles all water treatment gases (chlorine, sulfur dioxide, carbon dioxide and ammonia).
- Detachable Rotameters—Two sizes of rotameters - 3” and 5” are available in 15 capacities between 1.2-500 pounds per day of chlorine.
- Built-in automatic switchover eliminates the need for external switching devices.
- The S10K chlorinator is simple in design, compact and easy to handle.
- Fewer internal parts provide reliable, dependable service.
- Direct cylinder mounting puts the vacuum-regulating valve right at the source, reducing gas pressure to a vacuum immediately.
V10k Gas Feed System
The V10k Chlorinator is a remote vacuum solution feeder for use with four of the most commonly used gases for the disinfection and treatment in the following applications:
- Municipal & Industrial Water & Wastewater
- Industrial waste from chemical processing
- Industrial Process Water
- Recreational Pools
- A vacuum regulator mounted at the gas supply
- A wall-mounted gas control unit with a rotameter for indication of feed rate
- A water-operated injector that provides the vacuum source to drive the entire system
- V-Notch gas flow control
- Safe, all vacuum operation
- Convenient, wall-mounted design
- Easy readability
- Automatic switchover built-in
- Flexible control modes: manual to fully automatic control schemes
- Handles all water treatment gases: chlorine, ammonia, sulfur dioxide and carbon dioxide
- Versatility of wall mounting, front access of all components and maximum capacity of 750 PPD (chlorine).
- Proven V-Notch flow control technology provides accuracy and repeatability
- Premium Construction—features a one-piece molded headblock for reliability and endurance
- Large 5" and 10" Rotameters—available in 14 capacities up to 750PPD Cl2 for the highest degree of readability
- Serviceability—components easily accessible for servicing without tools
- Differential-Type Regulation—allows for lower vacuum levels and efficient, economical injector operation
V2000 Gas Feed System
The V2000 family of chlorinators are remote vacuum solution feed gas feeders. They consist of a floor mounted unit with a maximum capacity of 10,000 lbs (4500 Kgs)per day (Chlorine) and a more compact wall mounted unit with a capacity of 3000 (1360 Kgs) per day (Chlorine).
Wallace & Tiernan® V2000 gas feed equipment has the benefit of over 90 years experience in gas dispensing technology. This family of gas feeders consists of a floor mounted unit available in a variety of configurations with capacities to 10,000 PPD (chlorine) and a more compact wall mounted unit with a capacity of 3000 PPD (chlorine). Both are identical in reliability and performance.
Features and Benefits
- Superior Control
- Accurate gas flow control and repeatability are achieved by the use of a V-Notch orifice consisting of a precisely grooved plug sliding in a fitted ring.
- Flexible Control
- Each model is available in manual or fully automatc control utilizing a specifically designed disinfection controller
- Front Panel Access
- The front panel lifts off for easy acess to components that are most frequently serviced
- Large rotameters
- Large 10' rotameters give a high degree of reliability.
- Handles all water treatment gases
- Chlorine, ammonia, sulfur dioxide and carbon dioxide can be fed with the V2000
- Built-in non-isolating auto swichover
- Optional autoswitchover regulators provide continous operation and complete gas withdrawal
Series 50-200 Evaporator for Liquid CL2, NH3 and SO2
Wallace & Tiernan® 50-200 Evaporator is an electrically heated immersed-tank type heat exchanger. It is used whenever the rate of unaided gas withdrawal from multiple containers is not fast enough to keep up with requirements.
The Series 50-200 Evaporator is an electrically heated immersed tank heat exchanger for use with liquid chlorine, ammonia, or sulfur dioxide.The following components are included as standard:
- external water bath heater
- water back tank
- ASME rated vaporizing chamber
- NEMA® 4 control panel with disconnect switch
- gas pressure relief system
- liquid line pressure relief system
- hot water recirculating pump
- electronic temperature switches
- alternate bottom connection
- unpowered customer alarm contacts for high and low water temperature and low water level
- two chlorine line valves
- Nema® 4 control panel with fused disconnect switch
- Standard gas pressure and liquid line relief systems
- Complete pre-wiring of all electrical components
- Conforms to ASME code and Chlorine Institute recommendations
- External water heater to the water bath to eliminate possible hot spots
- Standard gas and temperature gauges, high and low alarm switches for temperature and low water level.