Eccentric hemispherical valve
Valve size: NPS2 ~ NPS48 DN15 ~ DN1200
Pressure rating: 150LB ~ 600LB, P10 ~ PN100
Material: carbon steel, stainless steel, low temperature carbon steel, duplex, super duplex steel, Inconel alloy
Design and manufacturing standards: ISO14313, BS 5351, GB/T 19672
Face to face standards: ASME B 16.10, GB/T 12221
Butt welding valve end standard: ASME B16.25, EN 12627, GB/T 12224
Flange end standard: ASME B16.5, ASME B16.47, EN 1092, GOST 12815, GB/T 9113
Stress test standards: 598, BS EN 12266 -1, GB/T 13927
Quality / Product Certification: ISO 9001, PED 2014/68/EU, EAC, ATEX and OSHAS 18001
Specification
Valve size: NPS2 ~ NPS48 DN15 ~ DN1200
Pressure rating: 150LB ~ 600LB, P10 ~ PN100
Material: carbon steel, stainless steel, low temperature carbon steel, duplex, super duplex steel, Inconel alloy
Design and manufacturing standards: ISO14313, BS 5351, GB/T 19672
Face to face standards: ASME B 16.10, GB/T 12221
Butt welding valve end standard: ASME B16.25, EN 12627, GB/T 12224
Flange end standard: ASME B16.5, ASME B16.47, EN 1092, GOST 12815, GB/T 9113
Stress test standards: 598, BS EN 12266 -1, GB/T 13927
Quality / Product Certification: ISO 9001, PED 2014/68/EU, EAC, ATEX and OSHAS 18001
Safety and reliability: in line with SIL3
NACE: in accordance with MR 01-75 / ISO 15156
Optional valve actuators: polished rods, gears, handles, pneumatic actuators, hydraulic actuators, gas actuators,
Gas oil actuator, electric actuator, hydraulic/electric actuator, hydraulic actuator
Sealing level: 598 (zero leak), grade six (FCI 70-2)
Characteristics
The eccentric hemispherical valve has a small fluid resistance, and the resistance coefficient thereof is equal to the pipe length of the same length;
The structure is simple, the volume is small, and the weight is light;
Tight and reliable, the sealing surface material of the ball valve is widely used in plastics and has good sealing performance. It has also been widely used in vacuum systems.
Eccentric structure design, the valve quickly disengages from the valve seat when opening, reducing friction and improving life;
The maintenance is convenient, the ball valve has a simple structure, and the sealing ring is generally movable, and the disassembly and replacement are relatively convenient;
When the eccentric hemispherical valve is fully open or fully closed, the sealing surface of the ball and the valve seat is isolated from the medium, and when the medium passes, it does not cause erosion of the sealing surface of the valve;
Wide range of applications, from small to a few millimeters, up to a few meters, from high vacuum to high pressure can be applied.
