Structure and features:
1, the globe valve depends on the stem pressure, so that the disc sealing surface and the seat sealing surface are closely fitted to prevent the flow of media. It is a forced sealed valve.
2, the globe valve medium flow has "low into high" and "high into low out" two, only allow the medium one-way flow, installation when directional.
3. The structure of the globe valve body is straight-through, straight-flow and right-angle.
4, when the stop valve is opened, the opening height of the valve disc reaches 25% to 30% of the nominal diameter of the stop valve, the flow rate has reached the maximum, which indicates that the stop valve has reached the fully open position.
5, the globe valve structure is simpler than the gate valve, manufacturing and maintenance are more convenient.
6, sealing surface is not easy to wear and abrasion, good sealing, there is no relative sliding between the valve disc and the valve body sealing surface when opening and closing, so wear and abrasion are not serious, good sealing performance, long service life.
7, when opening and closing, the valve flap stroke is small, so the height of the stop valve is smaller than the gate valve, but the structural length is longer than the gate valve.
8, the opening and closing torque is large, more laborious.
9, the fluid resistance is large, because the medium channel in the valve body is more tortuous, the fluid resistance is large, and the power consumption is large.
10. The valve disc is often eroded when fully opened.
Design specification:
Design standards: API 623, BS 1873, ASME B16.34, GB/T12235
Structure length: ASME B16.10, GB/T 12221
Connection standards: ASME B16.5, GB/T 9124, JB/T 79, HG/T 20592, ASME B16.25
Pressure test: API 598, GB/T 13927, GB/T 26480, JB/T 9092
Pressure and temperature grades: ASME B16.34, GB/T12224
Performance parameters:
Main material: carbon steel, stainless steel, alloy steel
Nominal diameter: NPS 2 "~ NPS 24" DN50 ~ DN600
Pressure range: CL150 ~ CL2500 PN10 ~ PN420
Operating temperature: -196℃ ~ +600℃
Application: It can be used in water, sewage, construction, food, power, medicine, metallurgy, textile, energy and other fluid pipelines for cutting or regulating and throttling use
