Chlorine & Sulfur Dioxide

Water Treatment Products Gas Equipment

Hydro Instruments has been manufacturing highest quality
gas chlorination and sulfonation equipment since 1978. Quality
A commitment to quality, safety and convenience sets Hydro
Instruments apart from its competition. We also manu-
facture equipment for feeding sulfur dioxide, ammonia, and
carbon dioxide gases. Some of the reasons why you can
feel and see the difference with Hydro Instruments are
outlined below.

Quality
With solid machined parts, designed with heavy wall thick-
ness, it is clear to see that Hydro Instruments makes the most
durable gas chlorination and sulfonation equipment on the market.
Many companies cut cost by using injection molded body parts.
Hydro Instruments parts are precision machined from only the
finest materials for use with chlorine, sulfur dioxide, ammonia, Rugged machined parts.
and carbon dioxide gases. Materials are selected for maximum
chemical resistance, durability, & resistance to cracking.
Safety
Safety
Hydro Instruments makes safety the highest concern. Here Cylinder
are three points, which set Hydro Instruments apart from the Vent
Port Pressure
competition: Gas

1. Durable designs and highest quality machined parts maximize

safety by avoiding cracks and breakage. To Lead
Ejectors
2. At Hydro Instruments a skilled technician follows a rigorous Gasket
testing procedure for each and every piece of equipment.
3. Other brands rely upon O-Rings to prevent pressurized gas No pressurized leak path to the room.
from leaking into the room while the Hydro vacuum regulators Any leak must go to vent.
incorporate a unique design making Hydro the only brand to
have no such pressurized leak path. (See diagram to right
center.)
Convenience
Yoke Bolt fits
Convenience twisted cylinder
Hydro Instruments makes every effort to maximize the con- wrench
venience of our customers. This includes both designing our
equipment for ease of operation and offering the best customer
support. Examples of our commitment in each area are:
Ease of Operation: Each Hydro Instruments Vacuum Regulator
is supplied with a twisted cylinder wrench that allows comfort-
able operation of both the cylinder valve and the vacuum
regulator yoke.
FAST SERVICE: Hydro Instruments maintains a large inventory
that allows us to ship spare parts, components, and complete Corrosion Resistant
Engineered Plastic
systems within 24 hours. Most orders ship the same day. Yoke Adapter
 Chlorine Specifications Ordering Information
Vacuum Regulator Gas: Chlorine, Sulfur Dioxide
1. Each regulator shall have a spring opposed two layer ECTFE (Halar)
Capacity (maximum feed rate):
diaphragm which controls vacuum and closes tight upon loss of vacuum.
English: 1.5, 4, 10, 25, 50, 100, 200, 250, 500, 1000, 2000 PPD
2. Each vacuum regulator shall have machined PVC bodies, Tantalum Metric: 75, 200, 500, 1000 & 2000 gr/hr
springs, and a solid Silver inlet valve stem 4, 5, 10, 20 & 40 kg/hr
3. Each regulator shall incorporate a pressure relief (vent) valve with
Mounting: Direct cylinder, wall, or ton
separate ports for chlorine feed and chlorine vent.
4. Connections shall be provided for tubing vented gas away from the Power (ton only): 120 or 240 VAC or 24 VDC (heater)
pressure relief (vent) port of each vacuum regulator to atmosphere Automatic Switchover: Yes or No
outside the building. The outside end of the vent tubing shall be Number of Feed Points: Specify capacity of each
equipped with an insect screen.
Optional: Double check valve ejectors?
5. Each regulator shall be equipped with an inlet filter to remove
High pressure ejectors?
particulate matter from the gas before it enters the inlet safety valve.
6. Each regulator shall include a flow meter tube to indicate feed rate
and which cylinder is in use.
7. Each regulator shall include a mechanism to indicate when the cylinder Hydro Model System
is empty and requires replacement.
8. The design of the regulators shall not rely on any O-ring(s) to prevent 0-100 PPD Series 500
pressurized chlorine leaks, into the room, from the region upstream 0-2 kg/hr
of the inlet safety valve.
250 PPD Series 200
Cylinder or Wall Mounted Option 5 kg/hr
1. The vacuum regulator(s) shall mount directly on the gas cylinder
valve by means of a corrosion resistant and gasketed yoke assembly 500 PPD Series 700/750
complying with the standards of The Chlorine Institute, Inc. 10 kg/hr
Ton Cylinder Mounting Option
1000/2000 PPD Series 20/40
1. The vacuum regulator(s) shall mount directly on the gas cylinder 20/40 kg/hr
valve, of the ton cylinder, by means of a corrosion resistant and
gasketed yoke assembly complying with the standards of The
Chlorine Institute, Inc.
2. The ton mounting yoke assembly shall include a Monel drip leg with Example for Up to 100 PPD
25 watt heater to trap and evaporate any liquid chlorine exiting the
ton container valve. (Series 500)
Ejector Simple System Remote Feed System
1. The ejector(s) shall be the water operated venturi nozzle type. The
ejector shall provide the operating vacuum for the chlorination system. Vacuum Regulator
Model 500
Vacuum Regulator
Model 500
2 kg/hr capacity 2 kg/hr capacity
2. The ejector shall incorporate a spring loaded, normally closed check
valve to prevent the backflow of water into the chlorine gas equipment. Vacuum Line Vacuum Line Remote Flow
The check valve shall be suitable for back pressures up to a minimum Meter

of 145 psi (10 kg/cm2).

3. Ejector check valve shall automatically close upon the loss of vacuum
in the Ejector. Vent Line
Vent Line
to Outside
to Outside Ejector
Ejector
Ejector Options
1. The ejector(s) can be ordered with two identical spring loaded check
valves for additional back flow protection.
2. For back pressures exceeding 145 psi (10 kg/cm2) the ejector(s) must
be fitted with high pressure support plates.

Automatic Switchover Module Additional Feed Point Switchover System

1. A separate mechanical device shall be provided to automatically switch Vacuum Regulator Automatic
from empty cylinder to the standby cylinder. The switchover module Model 500
2 kg/hr capacity
Switchover Unit Vacuum Line

shall be suitable for wall mounting. Remote Flow

Meter

Vacuum Line

Remote Meter Tee

500 Series Chlorinators

1. A gas flow meter shall be provided to indicate the gas flow rate. The 2 kg/hr capacity (2)
Vacuum Line
Vent Lines
gas flow meter shall be suitable for wall mounting. Vent Line
Remote Flow Meters
Ejectors to Outside
Ejector
to Outside
2. This gas flow meter shall be equipped with a V-Notch control valve for
manual feed rate adjustment.
3. Flow meter tubes shall indicate flow rates up to _______ and down
to a minimum of 1⁄20 of the maximum value. Dual Cylinder Scale

PROUDLY

INSTRUMENTS MADE IN USA

600 Emlen Way, Telford, PA 18969 • Telephone: (215) 799-0980 • Fax: (215) 799-0984
BULLETIN WT Rev. 3/19 Toll Free in the U.S.: 1 (888) 38-HYDRO • www.hydroinstruments.com • sales@hydroinstruments.com