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ARMSTRONG INTERNATIONALReplacement Gaskets

ARMSTRONG INTERNATIONAL Steam Trap Cover Gasket, A21958-1

This is a replacement steam trap cover gasket from ARMSTRONG INTERNATIONAL, model number A21958-1. It is designed for use with the Armstrong D1175-5 steam trap and is compatible with the AI series. This gasket serves…

SKU 3G-OTH-69183

Also listed as: A219581 · A21958 1

Brand
ARMSTRONG INTERNATIONAL
Item
Steam Trap Cover Gasket, A21958-1
Category
Replacement Gaskets
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

ARMSTRONG INTERNATIONAL
Manufacturer Part Number
A21958-1
Product Type
Steam Trap Cover Gasket
Compatible Series
AI
Compatible Manufacturer Model Number
D1175-5

Technical Documents

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ARMSTRONG INTERNATIONAL Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

This is a replacement steam trap cover gasket from ARMSTRONG INTERNATIONAL, model number A21958-1. It is designed for use with the Armstrong D1175-5 steam trap and is compatible with the AI series. This gasket serves as a repair part for the 36Y256 assembly.

Frequently Asked Questions

What is the Armstrong A21958-1 steam trap cover gasket used for?

The Armstrong A21958-1 is a replacement cover gasket for the D1175-5 steam trap in the AI series. It seals the trap body to prevent steam leakage, ensuring efficient condensate removal in industrial steam systems across power generation, chemical processing, and HVAC applications.

What are the specifications of the Armstrong A21958-1 gasket?

The Armstrong A21958-1 is a steam trap cover gasket, compatible with the D1175-5 model and the AI series. It is manufactured by ARMSTRONG INTERNATIONAL and serves as a repair part for the 75A3 assembly. No additional dimensions or material ratings are specified in the product data.

Where to buy the Armstrong A21958-1 gasket worldwide?

3G Electric supplies the Armstrong A21958-1 steam trap cover gasket worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this genuine Armstrong replacement part.

How to install the Armstrong A21958-1 cover gasket?

To install the Armstrong A21958-1 gasket, first isolate and depressurize the steam trap. Remove the cover bolts, clean the mating surfaces, and place the new gasket. Reinstall the cover and torque bolts evenly to the manufacturer's recommended specification. Always follow Armstrong's service manual for your specific trap model.

Used in

Common applications for ARMSTRONG INTERNATIONAL
Chemical processing — Armstrong International inverted-bucket steam traps (e.g., 882-050-125) for condensate removal from heat exchangers.
Food and beverage — Armstrong International corrosion-resistant steam traps (e.g., 1811-050-200) for steam tracing on sanitary lines.
Refining — Armstrong International high-pressure steam traps (e.g., 1822-100-650) for process steam mains.
Commercial HVAC — Armstrong International steam spargers (e.g., MS6-1-1/4") for hot water generation in boiler systems.
Pharmaceutical — Armstrong International stainless-steel steam traps (e.g., 1811-050-400) for clean steam applications.
Power generation — Armstrong International cast-iron steam traps (e.g., 883-075-250) for turbine drain lines.

ARMSTRONG INTERNATIONAL Products

3G Electric supplies ARMSTRONG INTERNATIONAL replacement gaskets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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