Grooved Angle Pad Rigid Coupling ASTM A536

Product Features (Specifications – Plain English List)

Standard: UL/FM, CE, ISO 6182, AWWA C606, GB 5135.11

Type: Angle Pad Rigid (Grooved)

Material: Ductile iron ASTM A536 65-45-12 / QT450-10

Gasket: EPDM / Nitrile rubber (NBR)

Bolts/Nuts: Carbon steel Grade 5 / 8.8, zinc-plated

Sizes: DN25–DN300 (1″–12″)

Pressure Rating: 300 PSI (2.07 MPa) / 500 PSI (3.45 MPa)

Temperature: -40°C ~ +110°C

Surface: Red epoxy coating / hot-dip galvanized

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Product details

Grooved angle pad coupling is a new pipe connector that uses pressure and a self-tightening sealing ring force produced by medium pressure for a seal. This coupling features a small volume, light weight, and simple structure.

Product Overview

Grooved angle pad coupling is a high-performance rigid pipe connector with unique angled bolt-pad design. It firmly clamps onto pipe grooves to deliver maximum axial & angular rigidity, superior anti-rotation stability, and strong resistance to pipe snaking or vibration.

Constructed from high-strength ductile iron, it enables fast installation (only two bolts), reliable self-tightening sealing, and long service life. Ideal for straight pipeline runs requiring fixed, non‑flexing joints in high‑pressure or high‑vibration systems.

Specifications Table (Dimensions & Parameters)

SIZE		OD SIZE	L (MM)	H (MM)	W (MM)
1″	DN25	33.7	97	58	45.5
1 1/4”	DN32	42.4	104	66	45.5
1 1/2”	DN40	48.3	114	72	45.5
2”	DN50	60.3	128	85	45.5
2 1/2”	DN65	73	137	94	45.5
2 1/2”	DN65	76.1	142	98	45.5
3”	DN80	88.9	164	112	46
4”	DN100	108	187	134	50
4”	DN100	114.3	190	138	50
5”	DN125	133	212	160	50
5”	DN125	139.7	223	168	50
5”	DN125	141.3	226	170	50
6”	DN150	159	244	188	50
6”	DN150	165.1	247	194	50
6”	DN150	168.3	250	196	50
8”	DN200	219.1	320	254	60
10”	DN250	273	408	316	65
12”	DN300	323.9	460	372	65

Product Applications

Angle‑pad design: stronger grip, anti‑rotation, rigid stability
Self‑tightening seal: medium pressure enhances sealing
Two‑bolt fast installation: swing‑over assembly, no welding
High rigidity: prevents deflection, axial/ angular movement
Corrosion resistance: long service life (housing ~50 years)
Certified: UL/FM/CE for fire protection & industrial use

Installation and Maintenance

Rigid straight runs in fire sprinkler systems
Water supply, HVAC & municipal pipelines
Industrial process lines (oil, gas, chemicals)
Mining & metallurgy piping (high vibration)
Power plant & mechanical piping systems

FAQ

Can you supply OEM?

OEM is available. We can customize the product according to your specific requirements, including logo printing and packaging design.

What’s the MOQ?

The MOQ is 500 pieces. For customized products with special sizes or surface treatments, the MOQ may vary.

How about the order processing and lead time?

After order confirmation and receipt of the advance payment, we will arrange production. Generally, the products can be ready for shipment within 15-20 working days. Once dispatched, we will notify you and provide all necessary documents for customs clearance.

What quality will be ensured?

All products are 100% new and undergo strict quality inspections, including pressure testing and dimensional checks, before delivery. We use sturdy wooden crates or cartons to ensure the products are well-protected during transportation.

Can you guide the installation?

Yes, we provide detailed installation instructions in English and other major languages. Our technical support team is also available for online consultation and guidance if needed.

Contact Information

Sales Inquiry:
Provide contact information for sales inquiries.

Email: [email protected]

Phone: +86 13012223295

Technical Support：

If you have any questions regarding product installation, commissioning, operation or maintenance, please contact our technical support team for professional assistance:

Email: [email protected]