Plastic head welded pneumatic angle seat valve

Product name: Pneumatic angle seat valve welded with plastic head

Product model: 2000Y-J661F

Connection method: welding

Structural design: piston type

Body material: cast stainless steel 304/316

Seat material: PTFE, PPL

Stem material: 304/316L

Sealing material: NBR

Drive type: pneumatic

Control gas: neutral gas, air

Thread standards: G, NPT, BSPT, BSP, DIN

Air pressure: 0.3～0.8 Mpa

Product pressure: ≤1.6 Mpa

Medium temperature: -20℃～+180℃

Ambient temperature: -20℃～+60℃

Product specifications: DN10-DN100

Use medium: water, oil, weak corrosive medium, etc.

Control gas: neutral gas, air

Drive housing material: plastic, cast stainless steel 304

Working principle: normally open, normally closed, double acting

Flange standards: GB/T9119-2010, HG/T20615-2009

Medium flow direction: conventional type (high inlet and low outlet), waterproof hammer type (low inlet and high outlet)

Pneumatic angle seat valve control form:

1. Single-acting normally closed type (high inlet and low outlet conventional type) is suitable for compressible media: gas, water vapor, etc.; and liquid media with lower pressure.

2. Single-acting normally closed type (low-in, high-out, waterproof hammer type) is suitable for waterproof hammer pipelines and can withstand a certain pressure difference.

3. Double-acting (high-in and low-out conventional type) has reliable performance and can withstand large pressure differences. If an emergency occurs, the valve can be automatically closed.

4. Double-acting normally closed type (low-in, high-out, waterproof hammer type) is suitable for demanding waterproof hammer pipes and can withstand large pressure differences.

5. Single-acting normally open type (low-in, high-out, waterproof hammer type) is suitable for high-demand waterproof hammer pipes, and can withstand large pressure differences.

Working principle of pneumatic angle seat valve:

(1) Working principle of single-acting normally closed type:

According to the function of spring reset to close the valve, only one air pipe needs to be installed when working, the valve opens when the air is ventilated, and the air cut valve closes automatically. It is easy to install and use under normal pressure and temperature.

(2) Working principle of single-acting normally open type:

The valve is closed according to the ventilation, and only one air pipe is required when working. The valve is closed when the air is ventilated, and the air-cut valve is automatically opened. It can be used when the valve needs to be opened for a long time under normal pressure and normal temperature.

(3) Working principle of double-acting with spring closing type:

According to the ventilation control valve switch, it is necessary to install two air pipes when working. In case of emergency (power failure), the valve can be automatically closed. The user can also install the valve direction freely according to the use situation. , Waterproof hammer, etc.) The control is more precise and stable.

(4) Working principle of double acting (free state):

According to the ventilation control valve switch, it is necessary to install two air pipes when working. When the pressure of the control actuator is low, the user can open the valve according to the use condition and it will be in the normally open state. The use of double-acting free state at low pressure and low temperature can prolong the life of the valve.

External structure diagram: 

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External connection size: 
 Welding dimensions can be customized according to user requirements: outer diameter, inner diameter, and valve body length.

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