Low Pressure UV Germicidial Lamps

Superior Quartz Products, Inc offers a wide range of standard and customized germicidal UV lamps for distribution and UV system manufacturers. A wide range of glass types, glass diameter, cathodes, bases, shapes, and lengths are available to produce the lamp that meets your custom requirements. Our engineering capability and manufacturing capacity allow us to significantly reduce the lead-time from concept to production. Superior Quartz Products, Inc welcomes the opportunity to be your long-term germicidal lamp supplier partner.

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Germicidal Lamp Basics

Ultraviolet germicidal lamps are low pressure mercury vapor lamps that are producing ultraviolet light by electrical discharge. The produced electromagnetic energy (UV light) has a lethal effect to microorganisms. Ultraviolet light is used in industrial and residential applications to purify water, air and surfaces.

Germicidal Lamp

Low Pressure Standard Lamps

Low pressure standard germicidal lamps convert 35% of the electrical power to UV energy. The inner surface of the quartz glass is coated with our special long-life material that allows the UV intensity to remain above 80% for 13,000 hours of operation.

Instant Start Ultraviolet Lamps (G)
Instant start ultraviolet lamps utilize high voltage for starting and are popularly used for water purification applications.

Preheat Ultraviolet Lamps (GPH)
Preheat Ultraviolet Lamps are normally started with a preheat circuit to warm the filaments for a gentle start. Preheat germicidal lamps are used in application with frequent on/off cycles can be operated from a magnetic or electronic ballast. Electronic ballasts are more popular today because of their light weight and smaller footprint.

Low Pressure High Output Lamp

Low Pressure High Output Lamps

High output lamps have twice the UV output intensity compared to the same size low pressure standard germicidal lamps. This is accomplished by passing a higher electrical current through the lamp. The lamp basic components are changed to keep the lamp stable and efficient under this condition.
Superior Quartz Products, Inc. manufactures exceptional quality ozone and non-ozone high output (HO) germicidal UV lamps that are extensively used in medical applications, pharmaceutical, food industry and biology research, for ultra-pure water and air disinfection.

Low Pressure Amalagam Lamps

Amalgam Lamps

Amalgam lamps are best suited for high flowing water treatment systems and they are built into multiple lamp reactor units. There are several advantages of amalgam lamps over other UV lamps.

The purpose of the amalgam technology in ultraviolet lamps are to enable optimum mercury vapor pressure at wider temperature range. In the amalgam ultraviolet lamps manufactured by Superior Quartz Products, Inc the mercury is alloyed with Indium forming an amalgam of the two metals. The amalgam is placed and fixed on Gold Spot at two optimally calculated locations along the inside axis of the quartz tube. This provides the optimum mercury vapor pressure at higher lamp temperatures. The benefit is that the UV output intensity of the amalgam lamp is not affected when the ambient water temperature fluctuates over a large temperature range. Water temperature will fluctuate in any typical Wastewater Treatment Plant (WWTP) mainly due to weather conditions and flow rates. Maintaining a constant output over a large ambient temperature range is critical to the performance of a UV system because if the intensity of the ultraviolet lamp falls, its rate of effectiveness of inactivating microorganisms will decrease dramatically.

Superior Quartz Products, Inc can manufacture replacement amalgam UV lamps for

  • Wedeco
  • Trojan
  • Aquafine
  • IDI
  • Siemens
  • Calgon Carbon and many more

Superior Quartz Products, Inc. can offer end users and equipment manufacturers, high quality replacement amalgam ultraviolet lamps at very competitive prices. Ultraviolet amalgam lamps and quartz sleeves manufactured by us are a direct equivalent of the original lamp and sleeve specification, no modification to existing equipment is required. Superior Quartz Products, Inc. is a major manufacturer of replacement amalgam UV lamps commonly used in many WWTP around the world.

  • Modifications to existing equipment are not required
  • Specifications are guaranteed
  • Standard warranty conditions

Trojan™ is trademarks of Trojan Technologies Inc., Canada
Aquafine™ is a trademark of Aquafine Corporation, CA, USA
Wedeco™ is trademarks of Wedeco AG.,Germany
IDI™ is a trademark of Infilco Degremont Inc., VA, USA
Siemens™ is trademarks of Siemens Water Technologies., PA, USA
Calgon Carbon™ is a trademark of Calgon Carbon Corporation, PA, USA

Ozone Formation and Destruction

Ozone Producing Lamps

The ozone producing low pressure UV lamps are made from especially clear quartz glass to transmit the 185nm wavelength to make ozone. Superior Quartz Products, Inc. can produce very high output ozone lamps for many professional industrial applications.

UV lamps are energy source for both making and destroying ozone.

Ozone formation

When a photon of light with a wavelength shorter than 200 nanometers is absorbed by an Oxygen molecule (O2), the energy breaks the molecule into two Oxygen atoms (O). One of these atoms can join with an Oxygen molecule to form an Ozone molecule (O3).

Ozone destruction

When a photon of light with a wavelength between 200 to 300 nanometers is absorbed by an Ozone molecule (O3), the energy breaks the molecule into an Oxygen molecule (O2) and an Oxygen atom (O). The Oxygen atom can break an Ozone molecule and form two Oxygen molecules.

Ozone generation using ultraviolet light has been used for many years for many industrial applications. Ozone is a powerful oxidizing agent. It can oxidize many organic compounds and is used commercially as a bleach for waxes, oils, textiles, and as a deodorizing agent. Because it is a powerful germicidal agent, it is also used to sterilize air and drinking water. The amount of the ozone produced by a UV lamp depends on the application design, but it is also greatly impacted by the ambient temperature, humidity, and the air flow speed near the lamp.

Quartz Sleeves

Quartz Sleeves

Quartz sleeves protect germicidal lamps from ambient temperature changes without sacrificing UV intensity.

Superior Quartz Products, Inc. supplies quartz sleeves for all low-pressure ozone, non-ozone, amalgam ultraviolet lamps in water treatment systems. Sleeves are available with open-end or closed end (domed) construction. All sleeves are made from pure fused quartz or synthetic quartz. Contact us for prices and availability. Custom lengths and diameters are available by request.

  • Custom Lengths
  • Flame Polished Ends
  • Standard Wall Thickens
  • Standard Sizes: 23x20, 25x22, 28x25, 29x26,32x28, 44x41

Low Pressure Bases

Superior Quartz Products, Inc. offers a complete selection of standard and custom ceramic and plastic bases for germicidal lamps.

Low Pressure Ballasts

Low Pressure Ballast Low Pressure Ballast Contact our experienced technical team with your questions about electronic ballasts.
  • High Frequency Electronic Ballasts
  • Reduced Power Consumption
  • Increased UVC Output
  • UL, CUL and CE Listed
  • Designed for Germicidal Lamps