by Mirab Sanat Rastin Pars

Corrosion Coupon and Installation

This equipment’s are the facilities that is used in monitoring the corrosion behavior of pipes. These facilities include:

  1. Corrosion coupon: which is the primary part of couponing system and is manufactured from the pipe material to evaluate the corrosion rate of the pipe accurately. The corrosion coupons have lots of types and is selected regarding the pipe pressure, pipe dia. and etc.
  2. Coupon holder: is used to place the corrosion coupon on the line and it is designed and made to work with all types of coupons according to the place of monitoring in the pipe line (top, middle or bottom of the line) and the variable number of coupons.
  3. Solid plug is an essential component in high pressure access fitting components, so that the plug body with access fitting sealing keeps the line pressure constant. In addition, the solid plug has an important function in maintaining the monitoring equipment that is in the vicinity of the system. Solid plug can be used with coupon holder, sampling equipment, bacterial sampling probes and sand probe and is manufactured from AISI SS 316.
  4. Access fittings are used to access pressurized areas at any time and in any place. When used with the Retriever and Service Valve, the access fitting components allow for safe use, easy insertion and removal of corrosion monitoring systems, as well as injection of inhibitors or sampling, etc. at maximum pressure. Access Fitting is manufactured according to the NACE MR-0175 standard. ASTM A105 or ASTM A350 LF2 material is used to make access fittings for use at standard temperatures.