API 6D Flanged Ball Valves Carbon Steel Stainless Steel WCB CF8 316L

API 6D Carbon Steel Stainless Steel WCB CF8 316L Flanged Ball Valves Supplier

Design Standards

Technical Specification: ASME/ANSI

Design and manufacture: API 6D API 608

Structure length: ASME B 16.10

Flanged end: ASME B 16.5

Inspection and test: API 6D API 598

Specifications

Normal pressure: 150/300/600 LB

Strength test: PT 3.0/7.5/15 MPa

Seal test: 2.2/5.5/11 MPa

Gas seal test: 0.6 Mpa

Valve body material: WCB(C), CF8(P), CF3(PL), CF8M(R), CF3M(RL)

Suitable medium: Water, steam, oil, nitric acid, acetic acid

Suitable temperature: -29 ℃ -180 ℃

Materials of main parts

American Standard Ball Valve Overview
The American standard ball valve is a versatile valve designed for cutting off, distributing, and redirecting pipeline flow. Unlike flange gate valves, its closure mechanism is a rotating sphere, making it highly efficient and reliable. These valves are typically installed horizontally and come in two-piece and three-piece designs, widely used across various industries.

Types of Ball Valves

Floating Ball Valve
The ball floats under medium pressure, pressing against the sealing surface to ensure a tight seal. This design is simple, offers excellent sealing performance, and is ideal for medium and low-pressure applications.

Fixed Ball Valve
The ball remains stationary under pressure, while the valve seat adjusts to maintain a secure seal. Equipped with bearings for reduced torque, this type is perfect for high-pressure and large-diameter systems.

Elastic Ball Valve
With an elastic ball and metal sealing components, this valve is built for high-temperature and high-pressure environments. External force ensures reliable sealing when medium pressure alone is insufficient.