37 Degree Heavy Duty Flange

37 Degree Heavy Duty Flangesystem consists of flare flange halves, cone inserts and bolt kits. It forms a tight, vibration-resistant seal by compressing the 37°flared tube end between two cone inserts when bolts are torqued.

Eliminates welding, pickling and secondary anti-corrosion treatment on site

Suitable for hydraulic oil, lubricant, water-glycol and other common hydraulic media

Compatible with carbon steel, stainless steel and alloy steel seamless tubes

Core Advantages

Zero hot work installation: No welding required, reduces fire risk in explosive environments like offshore platforms; installation speed is 3–5 times faster than welded flanges

Leak-free performance: 37°conical sealing surface disperses stress evenly under high pressure, maintains sealing stability under frequent pressure shocks and mechanical vibration

Free rotation design: Flange halves rotate freely around the tube for easy bolt hole alignment, reduces installation difficulty in narrow spaces

High pressure rating: Up to 6000PSI (420bar) working pressure, 4:1 burst safety factor

Reusable connection: Supports repeated disassembly and reassembly for pipeline maintenance, no damage to sealing surface

Typical Industries of 37 Degree Heavy Duty Flange

Marine & offshore: Hydraulic systems of drilling platforms, winches, hatch covers and steering gears.

Construction machinery: Excavators, harbor cranes, dump trucks and large hydraulic equipment

Oil & gas: Onshore & offshore hydraulic control pipelines

Industrial manufacturing: Metallurgy, forging presses, injection molding machines and hydraulic power units

After-Sales Support & Warranty

12-month warranty against manufacturing defects.

Technical support via email, phone, or video call for installation guidance, flaring tool selection, and troubleshooting.

Batch traceability–production records archived for each batch.

Rapid resupply–standard sizes in stock; custom sizes 15-20 working days.

Free sample–available upon request for customer verification.

24-hour inquiry response.

Frequently Asked Questions (FAQ)

1.Are these flanges interchangeable with SAE standard flanges from other brands?

Yes, our dimensions fully comply with SAE J518 and ISO 6162 standards, and are fully interchangeable with mainstream brands.

2.Can 37°flare flanges be used on stainless steel tubes?

Yes, we provide matching stainless steel cone inserts for stainless steel tubing to avoid galvanic corrosion.

3.What is the minimum order quantity of 37 Degree Heavy Duty Flange?

Regular sizes have no MOQ limit; custom sizes start from 10 sets.

4.Do you provide flaring tools?

Yes, we supply manual and hydraulic flaring tools matching our flange sizes.