The PH87 retractable assembly is suitable for "Hot-Tap" service, allowing for removal from a pressurized process line or vessel without interrupting the flow or draining the tank. The housing assemblies are constructed of chemically resistant titanium sheathes and are used with Model PH97 rugged sensors.
The insertion assembly is suitable for service in a process line or tank where variable insertion lengths are required. Blowout protection is provided by the flared tip design of the titanium sheath that provides a metal-to-metal stop during retraction. Integral junction boxes are provided for simple installation and wiring.
The Model PH97 electrodes are designed to be durable and rugged for use with the PH87 assemblies. The PH97 is a combination all-in-one sensor for either pH or ORP in a rugged Ryton™ body. In many applications the large volume reference reservoir will provide an extended functional life.
What Are the Applications of the PH87 and PH97?
- Pulp and Paper Stock
- Slurries
- Process Tanks
- Scrubbers
What Are the Benefits of the PH87?
- Suitable for Hot-Tap applications with ball valve
- Integral Junction Box for simple installation
- Titanium sheath for chemical protection
- Adjustable insertion length
- Integral anti-blowout guard
- Built-in Solution Ground
- Coaxial porous PTFE reference junction
Recursos
For control of batch neutralization, a pH measurement coupled with a timer-controlled chemical feed scheme provides very satisfactory results.
This system can be adapted for either acid waste or alkaline waste neutralization.
Wet scrubbers are used in utilities, paper mills, and chemical plants to remove sulfur dioxide (SO2) and other pollutants from gas streams. Undesirable pollutants are removed by contacting the gases with an aqueous solution or slurry containing a sorbent. The most common sorbents are lime, Ca(OH)2, and limestone, CaCO3.
Problems at the wet end of a paper machine can rarely be corrected downstream. That is why monitoring and controlling pH in pulp stock is critical to the paper-making process. Essentially, at every stage in the manufacture of paper, correct pH values play a vital role. Variations in the pH value at the headbox have a negative effect on the quality of the paper produced. Proper monitoring ensures minimizing plugging and fouling problems that occur with pH measurements in paper mills.
Current trend for increasing mercury awareness throughout the public sector has caused the government to take action. Recently, the Environmental Protection Agency (EPA) has focused their efforts on controlling mercury levels produced in various coal fired power plants. Based on information from several case studies, the EPA developed the Mercury and Air Toxics Standards to cut back mercury emissions. The most popular technology utilized by coal plants to meet the new standards is a scrubber which cleans the off gas from the combustion process. ORP sensors can further monitor the effluent from these scrubbers to ensure optimal mercury emission levels are achieved. By closely monitoring the mercury concentrations in the effluent, plant managers will be able to easily confirm their plants are meeting the EPA's standards.
Documentos y Descargas
Manuales
- DynaProbe ® Model PH97/DP pH Sensor (47 KB)
- Model PH87 Retraction Sensor Assembly (1.2 MB)
- Model PH97 pH Sensor (46 KB)
Especificaciones Generales
Información Técnica
Certificados
- Shelf Life Statement (40 KB)
Videos
While we strive to provide the most safe and accurate information possible, we are not responsible for any loss or damages resulting from attempting to replicate the acts conducted in this video. Furthermore, we shall not be held liable for use or misuse of information contained in this video.
¿En busca de información adicional sobre Yokogawa Iberia, tecnología y soluciones?
Contáctenos