1. The first option to consider is to directly mount the vacuum regulators to your chlorine or SO2 containers. If you have multiple containers  then you would need to mount  a vacuum regulator to each container. By using a chlorine vacuum manifold in lieu of a pressurized manifold you limit your exposure to liability. The regulators require a vacuum to open the inlet valve to feed gas. No vacuum, no gas.

   Contact Global Treat, Inc. for help in assembling your vacuum manifold feed system.
   

   Vacuum Manifold with 150 Pound Cylinders

   

2. Another option to consider for enhancing the safety of your equipment is a chlorine container shut off valve system.  These Chlorine Emergency Shut Off Valves can be provided so one can open or close the actuators locally and/or remotely. They come standard with a manual override panic button on the control panel. This allows you to shut the valves in event of a gas detection failure. Global Treat, Inc. has a variety of these actuators complete with an optional chlorine gas detector to meet your system requirements.

Here is an example of how easy it is to purchase: Buy Corp Stop Now!

Here is a screen shot of Global Treat’s New Online Store!

Never hesitate to call us at  (800)-370-4410  if you have any questions!

The answer to the question is the Hydro Instruments “Omni-Valve 110“

Definition
Omni – Latin for all, every

And that’s exactly what you get with the latest in technology from Hydro Instruments Automatic Vacuum Chemical Feed Valve.

The Omni-Valve has the latest automated valve design technology, while keeping operator interface truly operator friendly. The display panel is a simple menu driven controller designed to allow the operator to navigate easily thru the automated valve. This allows for simple installation and conversion from manual to automated vacuum chemical (gas or liquid) feed systems. Offering seven different control modes and a variety of feed capacities, the Hydro Instruments Omni-Valve is an “All-in-one” automatic control valve.

PRODUCTS WEB PAGE: Omni-Valve 110
PRODUCT BROCHURE: Omni-Valve 110 Brochure

The OV-110 Bragging Rights

• compact design integrated valve and controller
• microprocessor – based positioning feedback – no potentiometers
• drive shaft only comes in contact with the teflon shaft seals and valve seat providing minimal friction/wear
• “Self-Check” software verifies valve position automatically at operator selected frequency
• long 3″ v-notch valve stem with multiple sizes for each capacity range provides optimal resolution
• designed for automated vacuum feed of various gasses and liquid chemicals
• several control modes:
  -manual
  -automatic Flow Proportional
  -automatic Set-Point Residual (or ORP)
  -automatic Compound Loop (PID)
  -automatic Step Feed (four step feed inputs max)
  -automatic Dual Input Feed Forward (dechlorination or chloramination)
• remote positioning control of valve via a third analog input when valve is in manual mode or to remotely adjust the dosage or set-point (depending on automatic control mode selected).
• user adjustable alarms: loss of signal input, low flow, low residual and high residual
• ten point valve linearization for precise calibration
• for liquid feed applications the software includes an adjustable “purge” feature for periodically flushing debris and bubbles
• additional features for compound loop control modes available (contact GTI)

          Panel Mounted Omni Valve with Remote Meter Panel Bypass

Call Us! 800-370-4410                           Website www.globaltreat.com

                                **CLICK ON IMAGE FOR PRODUCT BROCHURE**

The Delivery System:

In the last several years, Vacuum Chemical Dosing has captured interest over the conventional Pressure Feed Metering Pumps (diaphragm and peristaltic).

       Pressure Feed Metering Pumps

These are some of the disadvantages to pressure feed metering pumps:

• Pumping a liquid requires that the lines in the system be pressurized, so pumping chemicals under pressure can be dangerous to personnel ( in event of a line break).
• Diaphragm pumps are prone to off gassing when pumping 12.5% sodium hypo, which will form a vapor lock, and jam the operating mechanism in the pump.
• Suction chemical piping should be kept as short as possible in order to guard against gasification.
• All dosing pumps, must be continuously checked for crystallization within the wetted parts. These  parts can split and cause contamination of the area and danger to personnel.

*Pumps are the least expensive method of feeding chemicals in the lower feed ranges however the cost considerations of personnel safety, reliability , maintenance, cleanup, repair and possible spill alleviation should be taken into consideration. As the chemical rate increases the cost impact will favor the vacuum chemical dosing system.

       Vacuum Dosing

The Vacuum Dosing Series LF Liquid Chemical Feeders is a family of fully vacuum operated, chemical solution feed systems, consisting of the following components: a Metering Assembly, Venturi Nozzel and Back flow Prevention Device.

These are some of the advantages of Vacuum Dosing systems:

• Minimal Maintenance-few moving parts
• Accurate, reliable feed
• Safe operation-Vacuum Feed
• High stability flows, no pump pulsing
• Good for up to 15% sodium hypochlorite and 20% sodium bisulphate solutions
• Simple design and easy installation
• Capable of handling chemical liquid flows from .5 gph -10 gpm
• Visual indication of chemical feed rate

       Applications:

• Sodium Hypo Feed
• Chlorine Generated Sodium Hypo Systems
• Dechlorination Sodium Bisulfite
• Chlorine Dioxide Chemicals
• Flourine Feed
• Ammonia Feed

Contact Global Treat Representative to discuss both pressure and vacuum feed chemical delivery systems.

Call Us Now: (800)-370-4410                                              Website: www.globaltreat.com

The Tri-Max tablet feeder is the preferred system for your water main dechlorination flushing applications. One of the purposes of this system is for using high strength dechlorination tablets, such as Bio-Max tablets, to neutralize high levels of chlorine to make the water environmentally safe to discharge.

The purpose for the dechlorination process is to remove all excess chlorine from the flow before it is discharged.  Large amounts of chlorine left in the water can be toxic to fish and other aquatic life, caution should be practiced when flushing any highly chlorinated water.  We recommend checking with your local Health Department, as procedures vary from county to county. 

Highlighted Features and Benefits: 

• Tri-Max tablet feeder is the ideal dechlorination tablet flushing system when dealing with new distribution lines and/or emergency water main repairs
• Tri-Max tablet feeder is known for its complete dry chemical dosing system for water, wastewater and process water treatment
• Operators are pleased with how easily the Tri-Max unit can be transported from site to site and that if needed it can be permanently installed using the mounting holes in the stainless steel flow deck
• Tri-Max tablet feeder treats up to 400,000 GPD and can effectively reduce 50 PPM chlorine to non-detectable levels *remove rest of sentence, it pertains to adding chlorine when this section is only about dechlorination*

Dechlorination Tablets
The Bio-Max Dechlorination tablets contain 92% Sodium Sulfite and are best utilized in high flow applications and will remove a large amount of chlorine in a short period of time.  Examples of this would be flushing fire hydrants or for new or repaired water mains.

  
De-Chlor chemicals that are required to neutralize various residual chlorine concentrations in 100,000 gal of water 

Residual Chlorine          Sulfur                   Sodium                 Sodium                   Sodium                     Ascorbic
Concentration                Dioxide                Bisulfite                  Sulfite                  Thiosulfate                   Acid
          (mg/L)                         (lb)                        (lb)                           (lb)                           (lb)                             (lb)

          1                          0.8                  1.2                     1.4                    1.2                       2.1
          2                          1.7                   2.5                    2.9                    2.4                       4.2
         10                         8.3                  12.5                  14.6                 12.0                     20.9
         50                        41.7                 62.6                  73.0                 60.0                     104 

**The above table is for information only and is not part of ANSI/AWWA C651** 

Applications: 

• Temporary or Permanent Use
• Fire Hydrant Flushing
• Swimming Pool Back Flushing
• Wastewater and Potable Water Discharge
• Hydrostatic Line Testing
• Dead End Line Testing
• Storm Water
• Municipal Reservoirs
• Cooling Tower
• Flows up to 400,000 GPD

Call Us Now: (800)-370-4410                              Website: www.globaltreat.com

You may not have known that you can use your process water to create a vacuum to draw chemicals into your contact chamber.

Induction Pumps:

The SWEET Package induction pump recirculates process water from the contact chamber through the induction pump, ejector, and diffuser to create a vacuum for drawing in disinfection chemicals.

Features:

• Submersed Dispersion Through Diffuser Reduces Off Gassing
• Broad Range of vacuum chemical injections: Gas & Liquid including chlorine, sulfur Dioxide, Sodium Hypochlorite, and Sodium Sulfate
• Eliminates Potable Water use for Vacuum Creation
• Safe Operation-Vacuum Feed
• Less Maintenance
• Lower Operation and Capital Cost
• Reduced Chemical Consumption
• Easy To Retrofit

  MiniSweet 250 ppd/ 30 gpd                                                MegaSweet - 2000 ppd/ 5 gph
SuperSweet - 500 ppd/80 gph  

                                         **CLICK ON IMAGES FOR BROCHURE**

Mega SWEET Options:

• Hoists, Winches, and Cranes
• Guide Rails and Brackets
• Nema 4x Control Panels
• Pump Motor Protection
• Electric Surge Arrester

Contact Global Treat, Inc to discuss your application for chemical feed induction!

 Phone: (800)-370-4410

“Ground water occurence studies and recent outbreak data shows that pathogenic viruses and bacteria can occur in public water systems that use ground water and that people may become ill due to exposure to contaminated ground water.” 

Are you in compliance with EPA’s “Final Ground Water Rule”?
Ground Water Rule Compliance Monitoring: A Quick Reference Guide

Total and Free Chlorine Analyzers

                   Open Flow Style                                                      Probe Style

                                        **Click on Images for Brochures**

EPA Ground Water Rule (Compliant Chlorine Analyzers)

FAQ

What is chlorine? 
What do the terms Free Chlorine, Total Chlorine and Combined Chlorine mean?

Office of Ground Water and Drinking Water Web Resources

Method 334.0: Determination of Residual Chlorine in Drinking Water Using An On-line Chlorine Analyzer

The Texas Commission on Environmental Quality (TCEQ) has adopted the Ground Water Rule

Call Us: (800)-370-4410

Corp Stop Web Page  

Buy Corp Stop Now!

Application

The use of a corporation stop (also known as Corporation Cock) is needed when the process water pipe cannot be drained at the diffuser to allow for maintenance and / or cleaning. With a corporation stop, the solution diffuser can be removed while the process water pipe remains full and pressurized.

Corporation Stops with Injection Quills are used for injecting chemicals delivered by metering pumps or ejectors into  mains ,tanks, cooling towers and process water systems. The diffuser extends into the water stream allowing for a more uniformed dispersion of chemicals.

Instructional Corp Stop Video

Global Treat, Inc’s  wide selection of ready-to-use main connects, corp stops, injection quills, chemical diffusers, corporation stops, eductors, gas/liquid injectors  allow us to provide the solutions for your unique application.

Sizes: ½”, ¾”, 1”, 1 ½”, and 2”            Materials and Type of Connections: Contact GTI

Corp Stop Brochure:
http://www.hydroinstruments.com/files/Bulletin%20CS%20[Feb%202010].pdf

Phone: (800)-370-4410                        Website: www.globaltreat.com