Quarter Turn Pneumatic Actuator for Ball Valve/Butterfly Valve Double Acting Single Spring

Product Description

Product Description

A "Quarter Turn Pneumatic Actuator for Ball Valve/Butterfly Valve" is a mechanical device designed to operate quarter-turn valves, such as ball valves and butterfly valves, using pneumatic power. Here's an in-depth analysis of its components, functionality, and applications:

1. Quarter Turn Pneumatic Actuator:

   • Quarter Turn: This term describes the range of motion required to operate the valve. Quarter-turn valves, including ball and butterfly valves, need only a 90-degree rotation to move from a fully closed to a fully open position. This allows for quick and efficient operation.
   • Pneumatic Actuator: The actuator uses compressed air to generate motion to turn the valve. The actuator typically converts the energy from the compressed air into rotational motion through a rack and pinion mechanism, or a scotch yoke mechanism, depending on the design.

2. Components:

   • Body: Usually constructed from durable materials like aluminum or stainless steel to withstand high pressure and environmental challenges.
   • Pistons or Diaphragms: These components move in response to air pressure, creating the force needed to rotate the valve.
   • Springs (in spring-return models): These are used to return the valve to its original position when air pressure is lost, adding a fail-safe feature that can be crucial in maintaining safety in critical applications.

3. Functionality:

   • On/Off Control: Most commonly used to start or stop the flow in a pipeline by fully opening or closing the valve.
   • Regulation: Though less common, some quarter-turn actuators can be fitted with positioners to allow for the precise control of the valve position, thus enabling the actuator to regulate flow rather than just stopping it.

4. Applications:

   • Water and Wastewater Treatment: For controlling the flow of water and treatment chemicals.
   • Chemical Processing: Used in chemical plants where precise and reliable flow control is necessary.
   • Oil and Gas: Essential for quick operations in pipelines and other oil and gas infrastructure.
   • HVAC: Regulating air flow in large heating, ventilation, and air conditioning systems.

5. Advantages:

   • Speed and Efficiency: Quarter turn valves are quick to operate, making them ideal for systems that require rapid shut-off.
   • Safety and Reliability: Pneumatic actuators are suitable for explosive environments since they do not require electrical power and minimize the risk of sparks.
   • Durability: Designed to endure harsh industrial environments and maintain functionality over long periods.

In summary, a quarter-turn pneumatic actuator for ball and butterfly valves offers a robust and efficient solution for controlling the flow within industrial piping systems. Its design ensures quick operation, high reliability, and suitability for hazardous conditions, making it a key component in many sectors, including energy, chemical processing, and utilities.

 

 

item	value
Warranty	1 year
Type	Actuator
Customized support	OEM, ODM
Place of Origin	China
Brand Name	KGSY
Application	General
Temperature of Media	Normal Temperature
Power	Electric
Media	Gas
Structure	Angle
Product name	Air operated actuator
Body material	Aluminum alloy
OEM	OEM Services Provided

Part     Number	Each      Number	Part    Name	Standard     Materials	Selected    Materials
01		Left Cover	Aluminum Die Casting	Stainless steel
02	1	Right Cover	Aluminum Die Casting	Stainless steel
03	1	body	Aluminum extrusion	Stainless steel
04	2	Piston	Aluminum Die Casting	----
05	1	Output shaft	Carbon Steel	Stainless steel
06	1	Cam adjustment	Carbon Steel
07*	2	O-ring(cover)	NBR	Fluorine or silicone rubber
08*	2	O-ring(Piston)	NBR	Fluorine or silicone rubber
09*	1	O-ring (output shaft bottom)	NBR	Fluorine or silicone rubber
10*	1	O-ring (output shaft at the top)	NBR	Fluorine or silicone rubber
11*	2	O-ring(adjusting screw)	NBR	Fluorine or silicone rubber
12*	2	Plug(Cylinder)	NBR	Fluorine or silicone rubber
13*	2	Bearing(Piston)	POM	--
14*	1	Bearing(output shaft at the top)	POM	-                      -
15*	1	Bearing (output shaft bottom)	POM
16*	1	Guide with Bearing(Piston back)	POM
17*	2	Thrust bearings (output shaft)	POM
18	2	Gasket (output shaft)	Stainless steel	----
19	1	Flexible file ring	Spring steel
20	8	Cover bolt	Stainless steel	----
21	8	Cover Gasket	Stainless steel
22	2	Gasket	Stainless steel
23	2	Nut	Stainless steel
24	2	Adjustment bolt	Stainless steel
25	5-16	Spring Components	Alloy spring steel
26	1	Position indicator	POM	--=
27	1	Screw of indicator	POM

Q & A:

1.What products are produced by your factory?
Answer: We, KGSY is a real factory, we produce all kinds of pneuamtic valve accessories, like air actuator, limit switch box, solednoid valve, air filter, declutch gear operator, electro-pneumatic positioner, adapters, etc.
We also assemble whole set pneuamtic ball valves & butterfly valves. 

2.What international approval have you got?
  Answer: At present, we have been approved with CCC, CE, IECEx, ATEX, UKCA, EAC certificate.

3.How long is the sample time?
Answer: Usually it will take 7 working days to make a sample.

4.How long is the lead time of a mass order?
Answer: We promise 25 days for each order and nearly 99.3% orders will be finished on schedule.

5.What's your strength?
Answer: We are a real factory, we have our own R&D team and control the quanlity and production time absolutly . 
At the same time, we own the advantage of a trading company, which includes efficient comunication and strong ability gathering goods on the primese of specialty.