Customer case：Angle seat valve
technical parameter
The angle seat valve can save space by maintaining the flow rate. It adopts a guided angle seat valve operated by a single acting pneumatic actuator with spring safety protection. When in use, it should choose normally open or normally closed.
The product is made of stainless steel and polytetrafluoroethylene. It can be used in most gas, liquid, steam and corrosive occasions. It is equipped with a radiator to protect the actuator and ensure a long service life of the valve
Principle and technical parameters of angle seat valve:
Single acting and double acting
Single acting (pneumatic head is usually a hole); working principle; According to the function of spring return to open and close, it is divided into normally open type and normally closed type.
Double acting (pneumatic head usually has two holes); Working principle: air supply controls its switch. (according to the customer's requirements, double acting and spring return can also be selected for more accurate control)
Connection mode
Pneumatic angle seat valves can be divided into:
Threaded connection
Quick mount connection
Flanged connection
Welded connection
Practical application parameters of angle seat valve
Pressure range: 0-2.5mpa (i.e. pn0-pn25)
Medium temperature: - 20 ℃ ~ + 200 ℃ (constant temperature type) - 20 ℃ - + 300 ℃ (high temperature type)
Ambient temperature: - 10 ℃ ~ + 60 ℃
Specification of threaded pneumatic angle seat valve: dn10-80
Specification of quick mounted pneumatic angle seat valve: dn15-80
Specification of flange pneumatic angle seat valve: dn15-80
All stainless steel pneumatic screw thread (internal thread) angle seat valve: dn10-65
All stainless steel pneumatic quick mount angle seat valve: dn15-65
All stainless steel pneumatic flange angle seat valve: dn15-80 valve body material: stainless steel
Sealing material: polytetrafluoroethylene
Actuator housing: polyacyl, stainless steel
Application of pneumatic angle seat valve in daily life:
Control gas: neutral gas, air
Control fluid: automatic industrial control fluid, food grade dairy industry, domestic water, ordinary pipeline fluid medium, etc.
Product features of angle seat valve
1. With valve open or close position display.
2. The external pneumatic pilot can increase the service life and avoid maintenance.
3. There is a self-adjusting sealing gland between the overflow port and the sliding block, which can improve the sealing performance.
4. Valve body angle seat structure, which can realize large flow (especially compared with ordinary stop valve),
Compact structure and fast response.
Installation and maintenance of angle seat valve
Applicable safety regulations must be observed
1. The pipeline must be clean and pollution-free.
2. Install as required, but preferably with the actuator facing upward. Pay attention to the flow direction.
3. When connecting the valve, pay attention to align the pipeline, and remove the actuator only when the user has special requirements.
4. Before opening or repairing the angle valve, cut off the fluid and control air supply and reduce the pressure in the pipeline system.
be careful
Characteristics when selecting flow direction a:
1. When the flow direction is selected, the service life of the product can be improved.
2. When the working medium is liquid, select the flow direction to prevent water hammer impact.
3. Diameter: Φ 15/ Φ 20/ Φ 25, the working pressure must be below 0.3MPa, otherwise double pressure must be selected
Action actuator.
Drift diameter Φ 32/ Φ 40, the actuator must be double acting Φ 100 size.
Diameter is Φ 50, the actuator must be double acting Φ 125 size.
Characteristics when selecting flow direction B
When the working medium is steam or gas, the flow tightness of the product can be improved when the flow direction is selected
Yes, but the V-shaped sealing ring in the valve body contacts the working medium for a long time, which has a certain impact on the service life of the product
In addition, when the working medium is liquid, there is no water hammer impact.