Socket Welding Method Flange High-Pressure Hydraulic Ball Valve Q1INS

Product Overview

The Q1INS type socket weld method flange high-pressure hydraulic ball valve is a special structure valve designed for harsh working conditions. Its inlet end adopts socket welding, which is permanently fused with the pipeline to provide the highest connection integrity and sealing performance; the outlet end is a square flange, which is convenient for flange connection with pumps, oil cylinders or other valve groups. This unique design makes it an ideal choice for key nodes in high-pressure, high-vibration hydraulic systems such as construction machinery, mining equipment, and pressure units.

Product features and advantages

1. Butt weld connection: ultimate reliability

• Zero leakage is possible: the valve and the pipeline are welded together through  the bevel to form a permanent connection, with no leakage point, the highest safety.
• Excellent anti-vibration: the welding connection strength is equivalent to the pipeline itself, can withstand extreme vibration and fatigue impact, life is far more than the threaded or clamp connection.
• Compact design: No extra flexible joints or connectors required, minimizing installation space.

2. Method: Strong and durable

• High strength: The Square flange has better bending resistance and stronger connection rigidity than round flange.
• Easy installation: Connect to the device quickly with bolts, facilitating system integration and maintenance.
• High pressure: The flange connection can withstand high system pressure and uneven load.

3. High voltage design and performance

• Thickened valve body: forged valve body is adopted, and the key parts are thickened to ensure safety under ultra-high pressure.
• Hard sealing technology: the surface of the ball core is hardened (such as hard chrome plating), forming metal to metal hard sealing with the valve seat, corrosion-resistant and long life.

4. Application scenarios are clear

• Pump outlet shut-off valve: directly welded to the outlet of the hydraulic pump as the main shut-off valve.
• Important operating mechanism inlet: Inlet installed in the cylinder or hydraulic motor to provide reliable isolation.
• High-pressure main pipeline node: used for critical pipeline nodes that require permanent and reliable connections.

Technical Specifications

Typical application areas

Construction machinery: outlet of main hydraulic pump of excavator and crane.
Mining machinery: high pressure pipeline for roadheader and hydraulic support.
Metallurgical equipment: hydraulic system of press and straightening machine.
Marine engineering: high pressure pipeline for deck machinery and rudder.
Energy equipment: the hydraulic control system of the power station.

Selection Guide 

Selection factors: 
1. Pressure level: Select according to the maximum working pressure of the system.
2. Valve body material: carbon steel or stainless steel is selected according to the corrosiveness of the medium (hydraulic oil, water, ethylene glycol, etc.).
3. Welding end size: the socket size is determined according to the outer diameter and wall thickness of the access pipe.
4. Flange end standards: specify the flange standards, hole diameter, hole spacing, and pressure rating of the connected equipment.
5. Sealing material: choose the sealing form according to the medium temperature and wear resistance requirements.

Our Advantages

Professional manufacturing: proficient in socket welding and flange processing technology, ensuring accurate dimensions and standard welding bevel.
Strict inspection: All valves undergo 100% overpressure testing and non-destructive testing (such as UT/RT, optional).
Full certification support: Provide complete documents such as material certification and stress test reports.