Plastic Butterfly Duct Damper Valve


Supply plastic butterfly duct damper valve,anti-corrosion inline duct air volume control damper,exported by China manufacturer. Made of PVC or PP plastic,many sizes.The blade can stop at a special angle to block or allow flow of air flowing.Widely used in plastic ductwork of industrial, institutional,corrosive fume exhaust system and HVAC system to control airflow volume.Lightweight, durable, and easy to install.Please send enquiry message to get attractive quotation.

  • Made from plastic PVC or PP (polypropylene),anti-corrosion,non-toxic,health,stand high temperature;
  • Available Sizes (for pipe):1.5″ (1.5 inch,DN40,Φ50mm),2″ (2 inch,DN50,Φ63mm), 2.5″(2.5 inch,DN65,Φ75mm), 3″(3 inch,DN80,Φ90mm), 4″(4 inch,DN100,Φ110mm), 6″(6 inch,DN150,Φ160mm), 8″(8 inch,DN200,Φ200mm), 10″(10 inch,DN250,Φ250mm), 12″(12 inch,DN315,Φ315mm), 14″(14 inch,DN355,Φ355mm),16″(16 inch,DN400,Φ400mm),20″(20 inch,DN500,Φ500mm);
  • Manual type or Electrical type,works for round or rectangle duct;
  • Place of Origin: China
  • Sell to worldwide, Ship by air plane or by sea boat;

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The Plastic Butterfly Duct Damper valve is a device used to regulate the flow of air or other gases in a heating, ventilation, and air conditioning (HVAC) system. It is made of durable plastic material that is lightweight and easy to install. The damper valve is designed in a butterfly shape, with a round opening that can be adjusted to control the airflow. The plastic construction of the valve makes it resistant to corrosion, ensuring longevity and reliability. It is suitable for use in residential, commercial, and industrial settings, and can be installed in both new and existing plastic ductwork systems.We have two versions as following:Manual type and Electrical type:

Type A – “Plastic Butterfly Duct Damper valve” (Inline-duct socket type)



Features&Advantage :

√ Made of plastic PP,can prevent condensation water,light weight and anti-corrosion.
√ Grey color,same as PP pipe and pipe fittings;
√ Many size models,widely fit for most of duct pipes.
√ For round/circular air duct.
√ Good insulation performance,reduce energy loss.
√ Resistant to abrasion, heat and corrosion.Ideal for situtations where resistance is the prime concern for the damper.
√ Good sealing performance to prevent the air from leakage.
√ Separable design:main body,screw nut and handle is separable,for you to reconstruct for some project;
√ By screwing the plastic nut,can adjust the stop plate`s loose or tight to stand at a required position or angle;
√ Meltable and weldable: can incorporate PP pipe,PP Tee,PP elbow by melt way;
√ Thickness 4mm,can withstand high pressure(For DN315,thickness 5mm).
√ Easy installation and quick working.

Application :
This product is widely used in a variety of applications,mainly for ventilation project,HVAC system,round ventilation duct, chimney, VAV box, air handler, or other air handling equipment,to stops or regulates the flow of air in the circular duct,from media transfer to isolation and venting, and also for water project.

Types,Dimension and Parameter:

  • DN50 ( 2″,Model Φ63,to insert OD63mm plastic pipe ),long 120mm;
  • DN65 (2.5″,Model Φ75,to insert OD75mm plastic pipe ),long 130mm;
  • DN80 (3″,Model Φ90,to insert OD90mm plastic pipe ),long 140mm;
  • DN100 (4″,Model Φ110,to insert OD110mm plastic pipe ),long 155mm;
  • DN150 (6″,Model Φ160,to insert OD160mm plastic pipe ),long 200mm;
  • DN200 (8″,Model Φ200,to insert OD200mm plastic pipe ),long 240mm;
  • DN250 (10″,Model Φ250,to insert OD250mm plastic pipe ),long 250mm;
  • DN315 (12″,Model Φ315,to insert OD315mm plastic pipe ),long 320mm;
  • DN355 (14″,Model Φ355,to insert OD355mm plastic pipe );
  • DN400 (16″,Model Φ400,to insert OD400mm plastic pipe );
  • DN500 (20″,Model Φ500,to insert OD500mm plastic pipe );
  • … …


dimension of plastic duct butterfly damper valve

Carefully check if the Inside Diameter fit your pipe.


2.5inch-plastic-damper-by-manual operate

3inch-plastic-butterfly damper by hand adjusting

4inch-plastic-air regulator

6inch-plastic-duct air adjust

8inch-Air Volume Control air Damper by manual

10inch-plastic-VCD by hand

12inch-Polyproyhlene manual adjusted air damper

Plastic Butterfly Duct Damper Valve 2

16inch manual damper

20inch manual damper

Type B – “Plastic air damper valve to connect flexible duct” (Flexible Duct type)

Plastic air damper to connect flexible duct

These dampers are usually used to connect flexible duct to permit or block air flowing.

The sizes available:
1),OD 78mm, to connect ID 80mm flexible duct;
2),OD 98mm, to connect ID 100mm flexible duct;
3),OD 118mm, to connect ID 120mm flexible duct;
4),OD 148mm, to connect ID 150mm flexible duct;
5),OD 167mm, to connect ID 170mm flexible duct;

air damper valve for flexible duct

Type C – “Flanged Type Plastic Butterfly Duct Damper valve” (Flanged type)

The following types feature with flange fixing. The flanged damper sizes from inner diameter 110mm to 500mm.

Type C1--plastic flanged duct damper valve

Flanged Type Plastic Butterfly Duct Damper valve sizes

Type C1–Plastic flanged duct damper valve are available sizes (inner diameter): Φ160mm, Φ200mm,Φ250mm, Φ315mm,Φ355mm, Φ400mm,Φ450mm, Φ500mm.

flanged type air volume control damper

Type C2--Transparent flanged duct damper valve

Type C2–Transparent flanged duct damper valve are available sizes (inner diameter): Φ160mm, Φ200mm,Φ250mm, Φ315mm.

Type D – “Rectangle Flanged Plastic Butterfly Duct Damper valve”

plastic rectangle flanged duct air damper valve VCD

The size of “plastic rectangle flanged duct air damper valve VCD” is usually customized according to customer`s requirements.
Material: Plastic PP or PVC.

If you are interested in Plastic Motorized Air Damper Valve,check the below link:

Plastic Motorized Air Damper Valve

We also can supply Plastic Motorized Air Damper Valve,for details,see below link:

How to install “Plastic Butterfly Duct Damper valve” 

air damper is easy installation

Installation of this plastic damper is very easy,just insert the object pipe and then use sealant to seal them,that`s all.

F.A.Q for “Plastic Butterfly Duct Damper Valve”

What is a plastic butterfly duct damper valve?

A plastic butterfly duct damper valve is a type of valve that is used to control the air flow. It consists of a disk-shaped element that rotates in the valve body, allowing the air to flow through or be blocked.They are widely used in the ventilation system in home or in commerical and industrial field.

What are the benefits of plastic butterfly duct damper valve?

The plastic butterfly valve offers several benefits, including its cost-effectiveness, its ability to open and close quickly by manual or by electricity, and its ability to handle large air flows. It is also relatively easy to maintain and has a long service life.The main advantage of plastic butterfly duct damper valves is their light weight, which makes them easy to install, transport and maintain. They’re also more cost-effective,prevent from condensation water and anti-corrosion than metal butterfly duct damper valves.

Are there different types of plastic butterfly valves?

Yes, there are different types of plastic butterfly valves. These include inline-duct damper valves(to insert into hard-pipe),flexible duct valve (to connect flexible duct),flanged duct valve and rectangle duct flanged damper valve.

Are plastic butterfly duct damper valves easy to install?

Yes, due to their light weight and scientific structure, plastic butterfly duct damper valves are easy to install.

Can these dampers be installed with motorized actuators?

Yes,if you need,we can install motorized actuators on the plastic damers.They can be DC12V,DC24V,AC24V,AC220V.Just tell us your requirements.

Buying guide to “Plastic Butterfly Duct Damper valve”

  • The Plastic Butterfly Duct Damper Valve is available for retail and wholesale;
  • The valve takes large packing dimension,therefore,takes much volume weight.The place of origin is in China,when you buy one or two,please consider freight(by air or by sea) into the cost;
  • Accept bulk order with Container delivery;
  • Please contact us to email:

General Knowledge on “Plastic Butterfly Duct Damper valve”

Air damper valve means the valve or a plate which can prevent or adjust/regulate air flow volume in the pipe or ventilation duct, chimney pipe, VAV box device, air handling machine, or other air processing equipments. This Plastic Butterfly Duct Damper valve is manufactured for suiting for flowing all corrosive and non-corrosive gas environments, high and low temperature service as well.Plastic Butterfly Duct Damper valve provides long-lasting, cost-effective solutions for industrial and institutional corrosive fume exhaust and drain applications.

  • PP air damper is non-toxic, anti-corrosion,health, stand high temperature;
  • Anti-rust: PP air damper can withstand PH value in a wide range of temperatures, high concentrations in the range of 1 to 14 acid and alkali corrosion;
  • Wear-resistant, non-fouling: PP air damper has uniform and smooth tube inner wall small,small flow resistance and no scaling;
  • Reducing vibration and noise: PP air damper has excellent insulation properties, can significantly reduce the vibration and noise caused by the flow of liquid.
  •  anti-cracking: PP material is good elasticity,which makes pipes and fittings sectionally together with the expansion of the liquid frost without bursting.
  •  anti-condensation, less heat loss: PP material is a poor thermal conductor, reducing condensation and reduce heat loss.
  • Easy Installation: PP damper valve is light weight, easy to install and operate, meltable and has weldability.
  • Long service life: PP duct damper valve systems can serve 50 years.

Block or Get Air Flowing with Butterfly Duct Valves!
The plastic butterfly duct damper valve is easy to install and maintain, making it the perfect solution for any air flow controlling. It can fit snugly into any plastic ductwork system, allowing it to maintain perfect air flow without taking up too much space. No any leakage when closed.It is also incredibly durable and can withstand extreme weather conditions, anti-corrosion,non-toxic,making sure that your air flow remains healthy and reliable for years.

The plastic butterfly duct damper valve is designed with an angle-adjustable disk, making it easy to control the flow of air. The disk opens and closes with a simple twist of the handle, allowing you to quickly and easily adjust the flow of air in any situation. The Plastic Butterfly Valve is also incredibly versatile and can be used with a variety of duct systems. Whether you’re trying to cool a home or prevent the spread of pollutants, the Plastic Butterfly Valve is the perfect choice.

Not only is the butterfly duct valve efficient and dependable, but it is also incredibly stylish. Its duct-inline design will look great on any ductwork system. With its incredible air flow controlling capabilities, the plastic butterfly duct damper valve is sure to be the perfect solution for your HVAC system or other air flow controlling system.

Supply "Plastic Butterfly Duct Damper Valve" with various sizes
Plastic Butterfly Duct Damper Valve 3

Sell Plastic Butterfly Duct Damper Valve.Made of plastic PVC or PP,the manually operated butterfly damper valve features anti-corrosion,non-toxic,health and stand high temperature. The blade can stay at a special angle to control airflow volume. Please send enquiry message to get attractive quotation on the plastic "volume control damper(VCD)".

Product SKU: SCPD56789328

Product Brand: Smartclima

Product Currency: USD

Product Price: 0.5

Price Valid Until: 2024-12-31

Product In-Stock: InStock

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Reviewed by 19 customer(s)

  • Vipin dubey

    I want 2″ damper valve 5 nos

  • Jesús

    I need 110mm valve. What are the minimum quantity, price and shipping cost?

  • Keith Crosby

    Can you confirm costs for 18 x DN80 manual dampers. Delivery to Waterside, Hamm Court, Weybridge KT13 8YA United Kingdom.

  • Christophe Deschodt

    Good day,

    I would like a quotation for a plastic butterfly duct damper valve:
    DN65 (2.5″,Model Φ75,to insert OD75mm plastic pipe ),long 130mm
    Thank you,
    Best regards,

  • Chew Li Li

    Manual version- “Plastic Butterfly Duct Damper valve”

    160mm – 2 nos

    Pls quote price 2 nos -160mm , shipped to Shah Alam , Selangor , Malaysia .

  • Mitchell Grierson

    Hi can you please quote for 4 x 4″ manual plastic valves, shipped to Sydney, Australia?


  • Tibor Varga


    Can you send me a quote for the 63mm and the 75mm diameter PVC damper valves? I would like to purchase one of each. I reside in Sweden – do you ship here, and if yes, how much is shipping?

    Thank you very much!


    How much will it cost to get two of these for a 110mm pipe send to Canada?

  • Jason Young

    Hello interested in 16 of the DN 100 Plastic butterfly valve with drive motor plus shipping to Sydney Australia

  • Grigoriadis Nikolaos

    Can you send me a price for a 2″ (50mm) PVC butterfly valve.
    The overall quantity is 100 but We need 10 to test if what we need them for will work.

  • djoni winata

    Hi, I need just 1 unit Electric version- “Plastic Butterfly Duct Damper valve” 3″ if available, if not 4″ is ok.

    how much the price? if deliver to Indonesia, Jakarta

  • Sakkasam Ratanathammapan

    Hallo! I am interested in your Electric version- “Plastic Butterfly Duct Damper valve” DIN100 4″.

    Could you send me specification and price to my email.



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