Is the SAE 3000 Flange Connection, Weld-On, Carbon Steel, Type D3 compatible with standard hydraulic hoses and fittings?

The SAE 3000 Flange Connection, Weld-On, Carbon Steel, Type D3 is compatible with standard hydraulic systems that use SAE 3000‑psi flange interfaces. Its carbon steel construction, welding socket, included mounting screws and NBR O‑ring provide the required mechanical strength and sealing for typical SAE flange fittings and hoses rated for the same pressure class. Ensure compatibility by matching the flange face style, bolt pattern and pressure rating to your existing hoses/fittings; also verify that hose/fitting materials and temperature ratings (-20°C to +100°C) align with your application. If your hoses/fittings are not SAE 3000 spec or have different bolt patterns/pressure or temperature ratings, adapters or alternative components may be required.

Does the SAE 3000 Flange Connection, Weld-On, Carbon Steel, Type D3 require special torque settings for the mounting screws to ensure a leak-free seal?

No — the SAE 3000 Flange Connection, Weld-On, Carbon Steel, Type D3 does not require any special or proprietary torque settings beyond standard good-practice installation. The product description states that the included mounting screws and NBR O‑ring provide a tight, leak‑free seal; proper sealing is achieved by correct assembly rather than a unique torque value. Use the manufacturer’s general torque recommendations for the screw grade and size being used (or standard torque tables), ensure even, cross‑pattern tightening to seat the O‑ring uniformly, and inspect for proper compression and alignment. Also follow routine checks for compatible materials, temperature range (-20°C to +100°C) and system pressure to maintain a leak‑free connection.

SAE 3000 Flange Connection, Weld-On, Carbon Steel, Type D3

All products, High-pressure adapters/

Additional information

Material	CS – steel (cast iron)

The SAE 3000 flange connection is designed for reliable performance in demanding hydraulic applications, combining a compact construction with a practical welding socket for secure and efficient installation. Manufactured from durable carbon steel, it ensures long-lasting strength and resistance to wear, while the included mounting screws and NBR O-ring provide a tight, leak-free seal that enhances system safety and efficiency. Engineered to operate within a wide temperature range from -20°C to +100°C, this flange connection delivers consistent functionality even under varying environmental conditions. Its robust design not only simplifies assembly but also minimizes downtime, making it an ideal choice for industries seeking dependable hydraulic solutions with optimized performance and durability.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HK-D3-SA-06-17	SAE 3000 collar fitting 3/8", for welding 17.5 mm	-	348	In stock	Enquiry
HK-D3-SA-08-21	SAE 3000 collar fitting 1/2", for welding 21.6 mm	-	348	In stock	Enquiry
HK-D3-SA-12-27	SAE 3000 collar fitting 3/4", for welding 27.2 mm	-	348	In stock	Enquiry
HK-D3-SA-16-34	SAE 3000 1" collar fitting, for welding 34.1 mm	-	348	In stock	Enquiry
HK-D3-SA-20-42	SAE 3000 flange fitting 1.1/4", for welding 42.8 mm	-	278	In stock	Enquiry
HK-D3-SA-24-48	SAE 3000 flange fitting 1.1/2", for welding 48.6 mm	-	210	In stock	Enquiry
HK-D3-SA-32-61	SAE 3000 collar fitting 2", for welding 61 mm	-	210	In stock	Enquiry
HK-D3-SA-40-76	SAE 3000 flange fitting 2.1/2", for welding 76.6 mm	-	175	In stock	Enquiry
HK-D3-SA-48-90	SAE 3000 collar fitting 3", for welding 90.5 mm	-	138	In stock	Enquiry
HK-D3-SA-56-103	SAE 3000 flange fitting 3.1/2", for welding 103 mm	-	35	In stock	Enquiry
HK-D3-SA-64-115	SAE 3000 flange fitting 4", for welding 115.3 mm	-	35	In stock	Enquiry
HK-D3-SA-80-142	SAE 3000 collar fitting 5", for welding 142 mm	-	35	In stock	Enquiry

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The SAE 3000 flange connection is designed for reliable performance in demanding hydraulic applications, combining a compact construction with a practical welding socket for secure and efficient installation. Manufactured from durable carbon steel, it ensures long-lasting strength and resistance to wear, while the included mounting screws and NBR O-ring provide a tight, leak-free seal that enhances system safety and efficiency. Engineered to operate within a wide temperature range from -20°C to +100°C, this flange connection delivers consistent functionality even under varying environmental conditions. Its robust design not only simplifies assembly but also minimizes downtime, making it an ideal choice for industries seeking dependable hydraulic solutions with optimized performance and durability.