Flush Disc Coupons Two-Inch System
We sell Flush disc coupons of various sizes and models, both for 2 “system access fittings and 1” retractable systems, which are commonly used for oil and gas, upstream Pertamina, chemical companies, etc.
Flush Disc Coupons: Generally used in applications where the coupon cannot extend into the pipe to interfere with the flow or pigging operations. A circular coupon with a diameter a 1.25″, a thickness of 0.125″ (3.18 x 0.32 cm), and one mounting hole ID 0.312″ (0.792 cm.).
Multiple Disc Coupon: Monitoring is available for pipes with diameters of 6″ or more. This pipeline corrosion protection method offers the following advantages: inherent orientation parallel to flow, greater surface area at a specific level, greater quantity and variety of coupon materials, easier monitoring in stratified or multi-phase flow, and corrosion coupons location in recess area of access fitting for monitoring in gas pockets or stagnant areas.
The hole is countersunk, and uses a flathead, stainless steel screw, insulating washer and insulating disc for mounting.
The exposed surface area is 2.5 sq. in. (16.1 sq. cm.)
AISI 1018, ASTM A106 gr B, to order
30-50 gram union depending on the model, details will be listed on the envelope
NACE RP-0775 and ASTM G-1
OD:1.25″, Thickness 1/8″
Multiple disc coupon