Coupon Holders

Coupon Holders

Metal Samples offers a large variety of coupon holders to fit most standard applications. Additionally, we can design and manufacture custom holders to meet special requirements. Please contact your Metal Samples sales representative if you do not see what you are looking for.

Fixed (Pipe Plug) Coupon Holders

Pipe plug coupon holders are the most common and most economical type. They are simple to install, and can be made from a variety of materials. These coupon holders are typically used with bypass systems, but can also be threaded directly into process piping.

Select Pipe Plug Coupon Holders for Flat/Strip Coupons, or for Cylindrical Coupons for more information and ordering details.

Fixed (Pipe Plug) Coupon Holders

Fixed (Pipe Plug) Coupon Holders for Cylindrical Coupons

Metal Samples Corrosion Monitoring Systems carries a variety of standard pipe plug coupon holder assemblies. We can design and make these assemblies to meet your specifications for size and material requirements.

Fixed (Pipe Plug) Coupon Holders for Cylindrical Coupons

Model SR3000 Low Pressure Adjustable Coupon Insertion System

Model SR3000 coupon insertion system is an adjustable unit commonly used in the water treating industry. The system is designed to mount onto a 1" piping system, but can easily be adapted to fit your specific requirements. The system consists of an insertion rod with a coupon adapter. The standard assembly is available with 3/4" or 1" NPT threads on the mounting plug. A safety cable and safety nut are also provided to prevent blowout. Several coupon holders and lengths are available.

Note: Since the adjustable mounting plug on the SR3000 is not a packing gland, somesystem leakage may occur if retracted or inserted into a pressurized system. Therefore,this model is suggested for use only in non-hazardous systems.

*The insertion length (I.L.) shown here is based on a standard Metal Samples CorrosionMonitoring Systems part #CO118 coupon and may vary for other coupons depending on thecoupon length and hole location.

Model SR3000

Model RT4000 Coupon Insertion System Retractable with Packing Gland

Model RT4000 coupon insertion system is a retractable unit commonly used in field and plant applications. A specially designed packing gland is used to insert or retract a coupon from a pressurized system without a process shutdown. The insertion system is designed to mount onto a 1" piping system, but can easily be adapted to fit your specific requirements. The system consists of an insertion rod with a coupon adapter, and a packing gland. A safety chain and safety nut are also provided to prevent blowout. Standard packing material in the packing gland is Teflon®, however, grafoil packing can be provided for high temperature applications. Several coupon holders and lengths are available. *The insertion length (I.L.) shown here is based on a standard Metal Samples Corrosion Monitoring Systems part #CO118 coupon and may vary for other coupons depending on the coupon length and hole location.

Model RT4000 Coupons

HC Series Coupon Holders for High Pressure (HP™ and MH™) Access Systems

HC Series Coupon Holders are designed to be specifically compatible with either the HPTM or MHTM High Pressure Access Systems. The HP coupon holder can not be used with the MH system and vice versa. The HP coupon holder is attached to the solid plug assembly by means of a left-handed thread connection to ensure that it does not become loose during the retrieval procedure. The MH coupon holder is attached by means of a set screw arrangement and incorporates an orientation keyway feature to automatically align installed strip coupons parallel to the fluid flow.

Coupon holders are manufactured from 316L stainless steel to meet NACE MR-0175 requirements for sour service. Mounting hardware is also manufactured from stainless steel and is supplied with coupon holders. Insulators are fabricated from Nylon and are supplied with the coupons. Coupons are ordered separately.

HC Series Coupon Holders

Hydraulic Series Coupon Holders for High Pressure Hydraulic Access Systems

Hydraulic Series Coupon Holders are designed to be specifically compatible with high pressure hydraulic access systems. The coupon holder is attached to the solid plug assembly by means of a left-handed thread connection.

Coupon holders are manufactured from 316L stainless steel to meet NACE MR-0175 requirements for sour service. Mounting hardware is also manufactured from stainless steel and is supplied with coupon holders. Insulators are fabricated from Nylon and are supplied with the coupons. Coupons are ordered separately. Calculated lengths are rounded down to the nearest 1/8".

Hydraulic Series Coupon Holders