Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
ARMSTRONG Flange Kit: 3/4 in, 816013-721K, 3/4 in NPT, Flange - Standard Flanges
ARMSTRONGStandard Flanges

ARMSTRONG Flange Kit: 3/4 in, 816013-721K, 3/4 in NPT, Flange

The ARMSTRONG Flange Kit (SKU 823ZW8) is a standard flange set designed for use with the ARMSTRONG R20-75 model. This kit includes two 3/4 in NPT flanges, a hardware kit, and EPDM gaskets, with a stainless steel…

SKU 3G-OTH-83324

Brand
ARMSTRONG
Item
Flange Kit: 3/4 in, 816013-721K, 3/4 in NPT, Flange
Category
Standard Flanges
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

ARMSTRONG
Manufacturer Part Number
816013-721K
Type
816013-721K, Flange
NPT
3/4 in
Includes
Hardware Kit
Body Material
Stainless Steel
Gasket Material
EPDM
Flanges Included
2
Compatible with Manufacturer Model Number
R20-75
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The ARMSTRONG Flange Kit (SKU 823ZW8) is a standard flange set designed for use with the ARMSTRONG R20-75 model. This kit includes two 3/4 in NPT flanges, a hardware kit, and EPDM gaskets, with a stainless steel body. It is identified by manufacturer part number 816013-721K.

Frequently Asked Questions

What is the ARMSTRONG Flange Kit 816013-721K used for?

The ARMSTRONG Flange Kit 816013-721K is used to connect piping or equipment in industrial fluid systems. It is designed for use with the ARMSTRONG R20-75 model, providing a secure, leak-resistant joint via its stainless steel body and EPDM gaskets.

What are the specifications of the ARMSTRONG Flange Kit 816013-721K?

The kit includes two 3/4 in NPT flanges, a hardware kit, and EPDM gaskets. The body is made of stainless steel. It is compatible with the ARMSTRONG R20-75 model and carries manufacturer part number 816013-721K.

Where to buy the ARMSTRONG Flange Kit 816013-721K worldwide?

3G Electric supplies the ARMSTRONG Flange Kit 816013-721K worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the ARMSTRONG Flange Kit 816013-721K?

Installation requires aligning the two flanges with the mating pipe or equipment, inserting the provided hardware, and tightening bolts evenly in a cross pattern to the manufacturer's torque specification. Ensure the EPDM gasket is seated properly to prevent leaks.

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

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
ARMSTRONG Flange Kits: 3/4 in, 816013-211K, 3/4 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Flanges; Manufacturer Part Number: 816013-211K; Compatible with Manufacturer Model Number: R20-75; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG
ARMSTRONG Flange Kits: 3/4 in, 816013-211K, 3/4 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Flanges; Manufacturer Part Number: 816013-211K; Compatible with Manufacturer Model Number: R20-75; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG
ARMSTRONG
ARMSTRONG Flange: 1 1/4 in, 816011-721K, 1 1/4 in NPT, Flange, 2 Flanges Included. Key specifications — Includes: Hardware Kit; Manufacturer Part Number: 816011-721K; Compatible with Manufacturer Model Number: R20-75; Body Material: Stainless Steel; Gasket Material: EPDM.
ARMSTRONG Flange Kits: 1 1/4 in, 816011-211K, 1 1/4 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Flanges; Manufacturer Part Number: 816011-211K; Compatible with Manufacturer Model Number: 4360B-1.25; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG
ARMSTRONG Flange Kits: 1 1/4 in, 816011-211K, 1 1/4 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Flanges; Manufacturer Part Number: 816011-211K; Compatible with Manufacturer Model Number: 4360B-1.25; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG Flange Kits: 1 in, 816012-211K, 1 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Flanges; Manufacturer Part Number: 816012-211K; Compatible with Manufacturer Model Number: H-51; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG
ARMSTRONG Flange Kits: 1 in, 816012-211K, 1 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Flanges; Manufacturer Part Number: 816012-211K; Compatible with Manufacturer Model Number: H-51; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG Flange Kits: 1 1/4 in, 804300-111K, 1 1/4 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Flanges; Manufacturer Part Number: 804300-111K; Compatible with Manufacturer Model Number: E22.2HT; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG
ARMSTRONG Flange Kits: 1 1/4 in, 804300-111K, 1 1/4 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Flanges; Manufacturer Part Number: 804300-111K; Compatible with Manufacturer Model Number: E22.2HT; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG Flange Kits: 3 in, 805188-111K, 3 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Hardware Kit; Manufacturer Part Number: 805188-111K; Compatible with Manufacturer Model Number: S-45; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG
ARMSTRONG Flange Kits: 3 in, 805188-111K, 3 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Hardware Kit; Manufacturer Part Number: 805188-111K; Compatible with Manufacturer Model Number: S-45; Body Material: Cast Iron; Gasket Material: EPDM.

More from ARMSTRONG

View all ARMSTRONG parts →
ARMSTRONG
ARMSTRONG
ARMSTRONG Flange: 1 1/2 in, 816009-721k, 1 1/2 in NPT, Flange, 2 Flanges Included. Key specifications — Includes: Flanges; Manufacturer Part Number: 816009-721k; Compatible with Manufacturer Model Number: H-53; Body Material: Stainless Steel; Gasket Material: EPDM.
ARMSTRONG
ARMSTRONG
ARMSTRONG Flange: 3/4 in, 816013-621k, 3/4 in NPT, Flange, 2 Flanges Included. Key specifications — Includes: Hardware Kit; Manufacturer Part Number: 816013-621k; Compatible with Manufacturer Model Number: 210ss; Body Material: Stainless Steel; Gasket Material: EPDM.
ARMSTRONG Flange Kits: 3/4 in, 8160013-111K, 3/4 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Flanges; Manufacturer Part Number: 8160013-111K; Compatible with Manufacturer Model Number: E15.2HT; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG
ARMSTRONG Flange Kits: 3/4 in, 8160013-111K, 3/4 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Flanges; Manufacturer Part Number: 8160013-111K; Compatible with Manufacturer Model Number: E15.2HT; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG Flange Kits: 3 in, 805189-111K, 3 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Hardware Kit; Manufacturer Part Number: 805189-111K; Compatible with Manufacturer Model Number: S-46; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG
ARMSTRONG Flange Kits: 3 in, 805189-111K, 3 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Hardware Kit; Manufacturer Part Number: 805189-111K; Compatible with Manufacturer Model Number: S-46; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG Flange Kits: 3/4 in, 816013-111K, 3/4 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Hardware Kit; Manufacturer Part Number: 816013-111K; Compatible with Manufacturer Model Number: H 20-20CI; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG
ARMSTRONG Flange Kits: 3/4 in, 816013-111K, 3/4 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Hardware Kit; Manufacturer Part Number: 816013-111K; Compatible with Manufacturer Model Number: H 20-20CI; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG Flange Kits: 1 1/4 in, 816011-111K, 1 1/4 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Hardware Kit; Manufacturer Part Number: 816011-111K; Compatible with Manufacturer Model Number: E15.2HT; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG
ARMSTRONG Flange Kits: 1 1/4 in, 816011-111K, 1 1/4 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Hardware Kit; Manufacturer Part Number: 816011-111K; Compatible with Manufacturer Model Number: E15.2HT; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG Flange Kits: 1 in, 816012-111K, 1 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Hardware Kit; Manufacturer Part Number: 816012-111K; Compatible with Manufacturer Model Number: 250CI - R; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG
ARMSTRONG Flange Kits: 1 in, 816012-111K, 1 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Hardware Kit; Manufacturer Part Number: 816012-111K; Compatible with Manufacturer Model Number: 250CI - R; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG Flange Kits: 1 1/2 in, 816009-111K, 1 1/2 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Flanges; Manufacturer Part Number: 816009-111K; Compatible with Manufacturer Model Number: E15.2HT; Body Material: Cast Iron; Gasket Material: EPDM.
ARMSTRONG
ARMSTRONG Flange Kits: 1 1/2 in, 816009-111K, 1 1/2 in FNPT, Flange, 2 Flanges Included. Key specifications — Includes: Flanges; Manufacturer Part Number: 816009-111K; Compatible with Manufacturer Model Number: E15.2HT; Body Material: Cast Iron; Gasket Material: EPDM.