Stem Extension Butterfly Valve

Production Name: stem extension butterfly valve
Brand: Kemus
Pric:Negotiable
Delivery:Negotiable
Place of origin: China

Product Details

     Stem Extension Butterfly Valve 


The elongated stem butterfly valve is also called the flap valve, which is a simple regulating valve and can also be used for on-off control of low-pressure pipeline media.


Structural features of the extended stem butterfly valve as follows:

1. The extension rod butterfly valve has the characteristics of simple structure, small size, light weight, low material consumption, small installation size, rapid switching, 90° reciprocating rotation, and small driving torque. It is used to cut off, connect and adjust the pipeline Medium, has good fluid control characteristics and close sealing performance.

2. The extension rod butterfly valve can transport mud, and the liquid accumulation in the pipe mouth is the least. Under low pressure, good sealing can be achieved. Good adjustment performance.

3. The streamlined design of the butterfly plate makes the fluid resistance loss small, which can be described as an energy-saving product.

4. The valve stem is a through-rod structure, after quenching and tempering, it has good comprehensive mechanical properties, corrosion resistance and scratch resistance. When the extension rod butterfly valve is opened and closed, the valve stem only rotates and does not move up and down. The packing of the valve stem is not easy to be damaged and the sealing is reliable. It is fixed with the butterfly plate cone pin, and the extension end is designed to prevent the valve from breaking out to prevent the valve stem from collapsing when the connection between the valve stem and the butterfly plate is accidentally broken.



Product parameter of  extension rod butterfly valve:

Size range: DN50-DN2000

Pressure range: 0.6-2.5MPa

Operate: Pneumatic with double-acting

Material: carbon steel, stainless steel

Applicable temperature: Carbon steel: -29℃ ~ 425℃ Stainless steel: -40℃ ~ 650℃

Applicable medium: Water, air, natural gas, oil 

Driving method: Worm gear drive, electric, pneumatic, hydraulic

MOQ: 1set

Price: Negotiable

Delivery: Negotiable

Warranty: 12 month




 

Standard of pneumatic stem extension design butterfly valve

Part NameMaterial
BodyWCB, alloy steel, stainless steel, QT450-10
DiscWCB, alloy steel, stainless steel, QT450-10
Shaft2Cr13 stainless steel, alloy steel
Seal ringStainless steel
Packingflexible graphite




The dimension of stem extension type butterfly valve 



Size(DN)

Main dimensionsFlange dimensions and bolt dimension

1.0MPa1.6MPa2.5MPa

LH1HDD1n-ФdDD1n-ФdDD1n-Фd
501083501121651254-181651254-181651254-18
651123701151851454-181851454-181851458-18
801143801202001604-182001608-182001608-18
1001274201382201808-182201808-182351908-22
1251404601642502108-182502108-222702208-26
1501405551752852408-222852408-223002508-26
2001527602003402958-2234029512-2236031012-26
25016583024339535012-2240535512-2642537012-30
30017889525044540012-2246041012-2848543016-30
35019095028050546016-2252047016-2655549016-33
400216119030556551516-2658052516-3062055016-36
450222125535061556520-2664058520-3067060020-36
500229130538067062020-2671565020-3373066020-36
600267134044578072520-3084077020-3684577020-39
700292152048089584024-3091084024-3696087524-42
8003181710530101595024-33102595024-39108599024-48
90033018105801115105028-331125105028-391185109028-48
100041019606501230116028-361255117028-421320121028-56
120047022507601455138032-391485139032-481530142032-56
140053024358501675159036-421685159036-481755164036-62
1600600278010301915182040-481930182040-561975186040-62
1800670302012302115202044-482130202044-562195207044-70
2000760327013502325223048-482345223048-622425230048-70





Certificate of extension stem item butterfly valve 


certification of stem extension butterfly valve






Relative Butterfly Valves


other valve except for stem extension butterfly valve







Contact US:

Attn: Lizy Liu

E-mail: sales2@kemus-valve.com

Mob/Webchat86-15960358834

Tel: 86-0592-7103069

Fax: 86-0592-5964598

Skype:  sui_lizy





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