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Shandong King Metals Co., Ltd.

Butterfly Valves, Worm Gear Valves, Low Pressure Valve manufacturer / supplier in China, offering Worm Gear Expansion Butterfly Valves, Ductile Iron 300psi NPT Threaded Grooved Reducing Cross, Forged Steel Socket Welding Half-Coupling and so on.

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Worm Gear Expansion Butterfly Valves

FOB Price: US $10-100 / Piece
Min. Order: 10 Pieces
Min. Order FOB Price
10 Pieces US $10-100/ Piece
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Production Capacity: 10000PC/Year
Transport Package: in Poly Wooden Cases or Poly Wooden Pallets
Payment Terms: L/C, T/T, D/P

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Basic Info
  • Model NO.: 2"-48"
  • Structure: Centre Sealing
  • Work Pressure: Low Pressure (Pn<1.6mpa)
  • Material of Seal Surface: Soft Sealed
  • Size: 2′′24′′
  • Specification: size: 2′′-24′′
  • HS Code: 84818040
  • Connection Form: Flange
  • Seal Form: Force Sealed
  • Working Temperature: Normal Temperature (-40°C<T<120°C)
  • Application: Industrial Usage, Water Industrial Usage, Household Usage
  • Trademark: SDK
  • Origin: China
Product Description
Usage
This product is suitable for throttling or shutting off the flow of corrosive or incorrosive gasses.liquids,
semiliquids and solid powder, and can be installed in selected position in pipelines or on vessels in 
the industries of petroleum processing,chemicals,food,medicine,textile,paper making,hydroelectricity 
engineering,ship building,water supply and sewage,metallurgy,energy engineering as well as light
industry,etc.
 
Feature
1. Long service life with reliable seal and without frequent main tenance
2. Pressure loss
     Too much pressure loss will bring increased cost of correlative energy
      Butterfly valve have flow characteristics three times better than globe valve,and about 75%
      of a same size gate valve
3. Multi-Function
    Butterfly valve can be used for on/off service and throttling,They are superior in Multi-function
    as compared to gate or globe valves.Butterfly valve can be widely used in chemical field due
    to trim options and choice of elastomeric liner.
4.Weight
    Butterfly valve have feature of light in weight and small in size,for example, weight and size of 
    a 10'' butterfly valve are 1/9 and 1/6 of a 10'' gate valve.So butterfly valve is easy to install and 
    save cost of piping system.
5.Bubble Tight
    Butterfly valve with resilient seat design can be bubble tight as compared to metal seated gate
    or globe valves.
6.Easy of operation
   Butterfly valve offer 90-degree open to close.
7. Butterfly valves is approximate 35-40% cost of a same size gate valve. Also low 
    installed cost than gate valve.
8.Maintenance
    Properly installed butterfly valves are self cleaning and are less susceptible to failure due to 
    trash material in pipe.
9.Delivery Time:25 days after order conformed.
10.Standard: EN,MSS,API,AWWA,BS
11.Operation: level operation
12.Body:cast iron,stainless steel 304/316,aluminum bronze
13.Painting:PTFE coating,nylon painting
14.Stem:CS,SS416,SS410,SS304,SS431
15.Seat:NBR,EPDM,PTFE
16.Pressure:PN10,PN16
17.Size:2''-24''
18.Packaging:export poly wooden cases, or as per customers' requirements
19.Payment:by L/C,T/T and D/P
Worm Gear Expansion Butterfly Valves
Worm Gear Expansion Butterfly Valves
Worm Gear Expansion Butterfly Valves
Performance date
Specification DN50-1600mm
Nominal pressure(Mpa) 1
Testing pressure(Mpa) Strength 1.5
Sealing 1.1
Working temperature(°C) Normal-45°C-130°C SPECIAL:200°C(Instantanecus)
Suitable medium Fresh water,pollutewater,sea water,vapoir hydrochloric water,gas,food,oils,all kinds of oil acid and alkal.etc.
Driving methods Handle,electric,peneuatic










Working condition code
Working condition code P J Y S
Suitable medium conmmon acid and alkali oil,gas food,medicine
Example Incorrosive media such as water,air and slurry etc. Soultions ans medium of acid and alkali Organic sout ions such mineral oil ainmal and plant oil etc. All kinds of food and medicine
 










Outline and connection dimension
Nominal DN H1 H2 H3 Expansion length Design length        L L1 L2 Φ n-Φd-M
mm inch L(Max) L(Min) 0.6MPa 1.0MPa 1.6MPa 0.6MPa 1.0MPa 1.6MPa
200 8 175 225 99 265 215 245 160 80 280 295 295 4-18-M16 4-23-M20 4-23-M20
250 10 215 266 99 295 235 260 160 80 335 350 355 4-18-M16 4-23-M20 4-23-M20
300 12 245 290 99 302 252 282 160 80 395 400 410 4-23-M20 4-23-M20 4-25-M20
350 14 270 320 99 321 271 301 160 80 445 460 470 4-23-M20 4-23-M20 4-25-M22
400 16 305 400 126 333 283 313 198 136 495 515 525 16-23-M20 16-25-M22 16-30-M27
450 18 325 425 126 354 304 334 198 136 550 565 585 16-23-M20 20-25-M22 20-30-M27
500 20 360 480 126 366 316 346 198 136 600 620 650 16-23-M20 20-25-M22 20-34-M30
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