Ball Valve - Muller

Mô tả

A ball valve is a shut-off valve that controls flow using a spherical ball with a through-hole. When the handle is rotated 90°, the hole aligns with the flow direction allowing full opening; rotating it back closes the valve.
Ball valves provide excellent sealing performance and smooth operation, making them suitable for water, air, oil, chemicals, and pneumatic systems.
Construction:
– Valve body: Stainless steel, brass, carbon steel, PVC
– Ball: Stainless steel 304/316 or chrome-plated
– Seat seals: PTFE (Teflon), RPTFE
– Stem: Stainless steel 304/316
– Handle, handwheel
– Stem O-ring
– Body bolts & nuts (for 2-piece / 3-piece designs)
Technical specifications:
– Size range: DN18 – DN300 (threaded up to DN100, flanged up to DN300)
– Pressure rating: PN16 – PN40 / Class 150–300
– Temperature range: –10°C to 180°C
– Body materials: SS304/316, brass, carbon steel, PVC
– Ball material: SS304/316, chrome-plated
– Seat materials: PTFE, RPTFE, EPDM, Viton
– Connection type: Threaded (BSPT / BSP / NPT), flanged PN16
– Actuation: Lever, gear operator, electric actuator, pneumatic actuator
– Media: Water, compressed air, light steam, oil, gas, chemicals
Key Characteristics:
– Quarter-turn operation (90° open/close)
– Extremely tight shut-off (zero leakage)
– Low operating torque due to minimal friction
– Long service life with minimal maintenance
– Higher pressure capability compared to butterfly valves
– Ideal for small to medium pipeline systems
Benefits:
– Very fast operation with absolute sealing
– High durability
– Smooth and light operation
– Suitable for high-pressure applications
Disadvantages:
– Not recommended for large pipelines (DN250+ – butterfly valves are preferred)
– Higher cost compared to butterfly or gate valves of the same size
– Not ideal for precise flow regulation (globe valves perform better)