Full-welded ball valve in drum type

Full-welded ball valves of drum type are suitable for pipelines in various conditions such as oil, chemical, thermal power stations, etc., with working temperatures of -29 to 200℃ and Class 150 to 300Lb pressure ratings, for cutting off or connecting media. Suitable media include oil, purified natural gas, acidic natural gas, coal gas, water, and coal slurry, etc. Operating methods include worm gear transmission, pneumatic, electric, and gas-liquid linkage.

Structural Features

The fully welded spherical ball valves feature a fixed ball structure with bearings installed on the upper and lower axes of the ball, resulting in low operation torque. This structure ensures the ball remains stationary under pressure, and the design incorporates two sealing rings to provide sufficient pre-tension for a double-sided forced seal, offering enhanced reliability. The ball's machining process is monitored by advanced computerized detection equipment, ensuring high precision. Since the valve body material is the same as the pipeline material, there is no uneven stress or deformation due to earthquakes or vehicle traffic. The sealing ring itself is made of PTFE material containing 20% C (carbon), guaranteeing complete non-leakage (0%).

Execution Standards

Design Specifications: API 6D, ASME B 16.34

Pressure-Temperature Ratings: ASME B16.34, API 608

Structural Length: ASME B16.10, GB12221

Welding End Type: ASME B16.25, ASME B31.4/31.8

Inspection and Testing: API 598, API 6D, GB13927

Fireresistant Test: API 607, API 6FA

Performance Parameters

Valve Model: Q361F

Welding, butt welding

Pressure Class: 150~300 Lb, PN 1.6/2.5 MPa

Product Specifications: DN600~1200mm

Product Material: WCB, A105, F11, F22, F304, F316, CF8, CF8M, WCC, or as per customer's requirement

Applicable Temperature: -29℃ ≤ t ≤ 200℃

Applicable Media: Water, air, oil, and other fluids that do not react chemically with carbon steel.

Drive Type: Worm Gear

Product Dimensions