691301-010 Armstrong Gasket

GSKT HD 22″ 2P NON ASB

Armstrong 691301-010 Heavy Duty Gasket – 22″, 2-Pass, Non-Asbestos

Overview

The Armstrong 691301-010 is a heavy-duty non-asbestos gasket designed for 22-inch, 2-pass shell & tube heat exchangers. Built to Armstrong’s reliability standards, this gasket (SKU 46114) is used to seal the head in Armstrong Series 691300/691301 heat exchangers. It prevents leakage between the head and shell, tolerating high pressures and thermal cycling. Weighs approximately 5 pounds.

Specifications

Features & Benefits

• Non-asbestos construction for safer handling and compliant materials

• Heavy-duty design suited to high temperatures and repeated thermal expansion

• Precise fit for 22-inch 2-pass Armstrong shells; prevents leaks and ensures proper sealing

• OEM part so maintaining performance and compatibility is straightforward

Applications

• Repair and maintenance of Armstrong Series 691300 / 691301 shell & tube heat exchangers

• Situations where a non-asbestos, heavy duty gasket is required for safety or regulatory reasons

• Industrial and commercial heating, boiler systems, and process-cooling units

Installation & Maintenance Notes

• Ensure correct shell & tube head match (22″ 2-pass Armstrong) before installing gasket

• Clean contact surfaces thoroughly; remove old gasket material completely

• Torque bolts in proper pattern and to spec to avoid warping or leaks

• Inspect periodically, especially after thermal cycling, for compression set or deterioration

Warranty & Quality Assurance

• Manufactured to meet Armstrong Fluid Technology’s materials and performance standards

• Backed by typical OEM warranty when installed properly

Related Products

• Other Armstrong gasket sizes in the 691301 series (e.g. 4-pass)

• Compatible gaskets for other shell / tube exchanger brands where 22-inch head size is used

• Full gasket sets (head and shell) if replacing multiple sealing surfaces