emailsales@covna-china.com +8613729936450
search

BLOG

Subscribe to us and get update information from COVNA

BLOG
TAGS
actuator(1)
angle seat valve(2)
Automatic Valve(2)
Ball valve(8)
Butterfly Valve(6)
Check Valve(2)
Common faults of motorized valve(1)
Control Valve(1)
covna(15)
COVNA Exhibition(12)
COVNA gate valves(1)
covna solenoid valve(1)
COVNA valves(9)
electric actuator(2)
Environmental Protection Industrial(2)
Ex-Proof Flange Ball Valve(1)
Gate Valve(3)
gate valve featutres(1)
globe control valve(1)
Globe Valve(3)
high pressure solenoid valve fearures(2)
IoT valve(1)
Lug Butterfly Valve(1)
Motorized valve(17)
pneumatic actuator(2)
pneumatic ball valve(8)
pneumatic butterfly valve(10)
Pneumatic control valve(3)
pneumatic solenoid valve(2)
pneumatic valve(13)
pressure relief valve(1)
PTFE butterfly valve(1)
PVC Valve(1)
Relief Valve(1)
safety relief valve(1)
Safety Valve(4)
sanitary ball valve(1)
Sewage treatment(1)
solenoid valve(3)
Wafer Butterfly Valve(2)
Water Treatment(1)
Electric Actuator Wafer Type Aluminum Alloy Butterfly Valves
Blog, Valves Study,

Electric Actuator Wafer Type Aluminum Alloy Butterfly Valves

Aluminum alloy butterfly valve means that the body material is made of Aluminum Alloy The characteristics of aluminum alloy butterfly valve can withstand high temperature, and the applicable pressure range is also high. The nominal diameter of the valve is large. The valve body is made of carbon steel. The sealing ring of the valve […]

Jun.13.2020
COVNA Pneumatic Valve Equipment Code
Blog, Valves Study,

COVNA Pneumatic Valve Equipment Code

1.Feature Code: The characteristic code of our company is HK 2.Special Demand Code:  K=Anti-sulphur Type, D=Low-temperature Type, B=Heat-insulating Jacketed Type, L=Lengthened Stem Type, Y=Special Type for Oxygen, W=Sanitary Type, V=V Type Ball 3. Valve Type code: Z=Gate Valve, J=Stop Valve=Ball Valve, D=Butterfly Valve, G=Diaphragm Valve, X=Cock Valve 4. Codes for Pneumatic Manners: 6=Pneumatic, 6S=Pneumatic-Manual, 6K=Pneumatic-Normal […]

May.16.2020
What are valves-Brief Introdution(2)
Blog, Valves Study,

What are valves-Brief Introdution(2)

How many do the valves have?-by their connection type with pipeline Flange end connected valve: the valve body is equipped with flange, and the valve connected with the pipeline by flange; Threaded connection valve: valve body with screw thread, and pipeline with thread connection; Welding connection valve: valve body with welding port, and the valve connected with the […]

May.08.2020 Tags: COVNA valves
What are valves-Brief Introdution(1)
Blog, Valves Study,

What are valves-Brief Introdution(1)

1.The brief introduction of what are valves? (1).Valves are pipeline accessories used to open and close the pipeline, control the flow direction, regulating and control the parameters (temperature, pressure, velocity and flow) of the transmission medium. (2).The valve is the control part of the fluid conveying system, which has the functions of cut-off, regulation, diversion, […]

Apr.28.2020 Tags: COVNA valves
The difference between Single-Acting and Double-Acting (Pneumatic Actuator)
Blog, Industry News, Training, Valves Study,

The difference between Single-Acting and Double-Acting (Pneumatic Actuator)

Pneumatic actuator, which use compressed air to drive valve switches or regulate the flow of media. They are also called air operating or pneumatic devices, generally used in conjunction with valves.   Double-acting pneumatic actuator: Simplyput, double-acting cylinders have both A and B port. This means that oil enters the cylinder through port A, pushing […]

Apr.07.2020
The Working Principle Of Different Types Valve Actuator
Blog, Industry News, Valves Study,

The Working Principle Of Different Types Valve Actuator

The main types of valve actuators used today include: -Manual actuator (handwheel & worm gear) -Electric Actuator -Pneumatic actuator -Solenoid actuator   Manual Worm Gear Operation Due to the high transmission ratio, this valve has the advantages of large output and easy operation, so it is widely used in right-angle rotary valves. Gears constructed by […]

Apr.02.2020

2022 COVNA GROUP All Right Reserved.Huaqiutong| Privacy Policy | Terms & Conditions

Sitemap
whatsapp
email
go to top