Cast Steel Floating Soft Seal Ball Valve
Cast Steel Floating Soft Seal Ball Valve
1. Floating Ball Design: The ball has no fixed support and seals tightly against the downstream valve seat under media pressure. Suitable for small diameters (DN15-DN200), it features a simple structure and low cost.
2. Soft Seat
PTFE (polytetrafluoroethylene): Corrosion-resistant, low-friction, suitable for temperatures from -20°C to 180°C.
RPTFE (reinforced PTFE): Higher strength and improved pressure resistance.
PEEK (polyetheretherketone): High-temperature resistant (≤250°C) and wear-resistant, suitable for demanding operating conditions.
Sealing ratings can reach ANSI VI (zero leakage), but are not suitable for media containing solid particles.
3. Cast Steel Body: Materials: WCB (A216), WC6 (high-temperature cast steel), CF8/CF8M (304/316 stainless steel).
Pressure rating: PN16-PN100 (Class 150-600). Applicable Temperature: -29°C to 425°C (depending on material and sealant).
4. Connection Methods
Flange Connection (RF/RTJ): Complies with ANSI B16.5 and GB/T 9113.
Threaded Connection (NPT/BSP): Suitable for small-diameter, low-pressure pipelines.
Butt Weld Connection (BW): Suitable for high-pressure piping systems.
5. Operation Methods
Manual (handle, gearbox) Automatic Control (pneumatic, electric actuator)
