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ARMSTRONGStandard Flanges

ARMSTRONG 816011-721K Standard Flange

The ARMSTRONG Standard Flange, model 816011-721K, is a 1 1/4 in NPT flange designed for use with the ARMSTRONG R20-75. This stainless steel flange includes a hardware kit and an EPDM gasket, with two flanges supplied…

SKU 3G-OTH-83694

Also listed as: 816011721K · 816011 721K

Brand
ARMSTRONG
Item
816011-721K Standard Flange
Part Number
816011-721K
Category
Standard Flanges
Available to Order
Also known as:816011-721KARMSTRONG
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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
Manufacturer Part Number
816011-721K
Type
816011-721K, Flange
NPT
1 1/4 in
Includes
Hardware Kit
Body Material
Stainless Steel
Gasket Material
EPDM
Flanges Included
2
Compatible with Manufacturer Model Number
R20-75

Technical Documents

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

Product Description

The ARMSTRONG Standard Flange, model 816011-721K, is a 1 1/4 in NPT flange designed for use with the ARMSTRONG R20-75. This stainless steel flange includes a hardware kit and an EPDM gasket, with two flanges supplied per unit.

Frequently Asked Questions

What is the ARMSTRONG 816011-721K flange used for?

The ARMSTRONG 816011-721K is a standard flange used to connect piping to the ARMSTRONG R20-75 pump or valve. It is suitable for industrial fluid-handling systems requiring a stainless steel body and EPDM gasket for sealing.

What are the specifications of the ARMSTRONG 816011-721K flange?

The ARMSTRONG 816011-721K is a 1 1/4 in NPT flange with a stainless steel body and EPDM gasket. It includes a hardware kit and two flanges per unit. It is compatible with the ARMSTRONG R20-75 model.

Where to buy the ARMSTRONG 816011-721K flange worldwide?

3G Electric supplies the ARMSTRONG 816011-721K flange worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install the ARMSTRONG 816011-721K flange?

Install the ARMSTRONG 816011-721K flange by aligning it with the mating flange on the R20-75, inserting the included hardware, and tightening bolts evenly to the manufacturer's torque specification. Use the EPDM gasket for a leak-free seal.

Used in

Common applications for ARMSTRONG
Hydronic heating systems — ARMSTRONG general-purpose inline circulator pump 182202-657 for potable water circulation
Pump motor replacement — ARMSTRONG pump motor 817025-007 for S&H 4-Series circulator pumps
Flange installation on E32.2HT pumps — ARMSTRONG flange hardware kit 810120-353K with steel bolts and rubber gaskets
Bearing replacement in H-32 series pumps — ARMSTRONG bearing assembly 816549MF-091 for in-line circulating pumps
Piping system connections — ARMSTRONG standard flanges 806074-621k for H-6 6 model with stainless steel and EPDM
Retrofit of pump flanges — ARMSTRONG flange 561100LF-001 for ASTRO EXPRESS 2 SYSTEM union-type connections
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ARMSTRONG Products

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

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