MH™ Plug Assemblies

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for High Pressure Access Systems

MH Solid Plug

MH Hollow Plug

An MH Plug serves as a "carrier" in a high pressure access system, and is used to install and hold a device in an MH Access Fitting. The device is mounted on the plug, and is then inserted into the Access Fitting using the Retrieval Tool. The plug holds the device in place during service, and serves as the primary pressure boundary.

Hollow plugs are used with probes, which require a through hole to allow clearance for the electrical connector. Solid plugs are used with most other devices such as coupon holders and injection nozzles.

The MH plug assemblies incorporate the following innovative design features which distinguish them from the HP plug assemblies and plug assemblies available from other major manufacturers.

A quick stab collet to facilitate easy attachment to the retrieval tool during removal and installation of the plug.
A coarse ACME plug thread to minimize the risk of galling or plug fouling.
A keyway feature to permit reproducible accurate orientation of installed hardware, coupon equipment, and injection nozzles.
A metal-to-metal back-up seal to minimize leakage, even if the access fitting assembly is subjected to high temperatures.

Ordering Information

Plug Type
HA700953 - MH Hollow Plug Assembly with Viton® O-Ring HA700645 - MH Solid Plug Assembly with Viton® O-Ring
	Material

		Your Part Number

Description:	Quantity:



This list represents our most common options. Many other alloys and seal materials are available. Please contact your Metal Samples sales representative if you do not see what you are looking for.

Spare / Repair Parts

MH Hollow Plug Assembly

Item	Description	Part #	Material
1	Hollow Plug Body	HA700303158	316 SS	Quantity:
2	O-Ring	PR6280834	Viton®	Quantity:
3	High Pressure Probe Packing	HA700277785	25% GF Teflon®	Quantity:
4	Set Screw	09158E1032ST0187	316 SS	Quantity:
5	Bore Seal Nut	HA700311158	316 SS	Quantity:

MH Solid Plug Assembly

Item	Description	Part #	Material
1	Drive Screw	HA700007159	316 SS	Quantity:
2	Retainer Pin	PR6366159	316 SS	Quantity:
3	Thrust Washer	PR6367783	Teflon®	Quantity:
4	Wave Washer	PR6370111	SS	Quantity:
5	Spirolox Pin	PR6371138	SS	Quantity:
6	O-Ring	PR6280834	Viton®	Quantity:
7	Solid Plug Mandrel	HA700008159	316 SS	Quantity:
8	Set Screw	09158E3716CP0750	316 SS	Quantity:

Teflon® is a registered trademark of DuPont.
Viton® is a registered trademark of DuPont Dow Elastomers.

Metal Samples Company
P.O. Box 8
152 Metal Samples Rd.
Munford, AL 36268

Phone: (256) 358-4202
Fax: (256) 358-4515

E-mail: msc@alspi.com