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Metal Seated Cast Iron Butterfly Valves With Pneumatic Actuator D373H-10K

Categories Butterfly Valves
Brand Name: OEM
Model Number: D71X / D371X / D373X
Certification: WRAS/ ISO 9001
Place of Origin: Shanghai , China
MOQ: 1pcs
Price: negotiation
Payment Terms: T/T advance or L/C at sight
Supply Ability: 90,000pcs per month
Delivery Time: 1usually within 35 days after received your payment
Packaging Details: Usually packing by plywood case suit for sea delivery
Product Name: butterfly valve
Application: Sewage, water etc.,
Size: DN50 ~DN3000
Pressure: PN10/16/125lbs/150lbs/JIS 5K/JIS10K
Standard: DIN / BS / AWWA / JIS
Temperature: -20~120 C
Body: Cast iron/ ductile iron/ stainless steel
Disc/wedge: Ductile iron/ Stainless steel/ SS304/SS316
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Metal Seated Cast Iron Butterfly Valves With Pneumatic Actuator D373H-10K

Wafer Butterfly Valve , Ductile Iron Body/ Disc, Epoxy Powder Coating For Water

1. BRIEF INTRODUCTION:

The butterfly valve is operated by the disc rotating form 0° to 90°, can be applied to cut off or regulate

the flow of medium.


The valve can be actuated by operating lever, handle wheel electric actuator or pneumatic actuator.


Widely used for potable water supply, waste water treatment, electric power plant, gas supply,

warm-air system, smelting plant, ship building, textile, petroleum, chemistry, or other light industries.


2. Specification

name

Butterfly Valve

Item No

D373H-10K

DN(mm)

DN50~DN3000

pressure(Mpa)

1.0

Test pressure

(Mpa)

Seal test

1.1

Body test

1.5

temperature

≤350℃

medium

Water, sewage, sea water, hot water etc.,


3. FEATURES

⊙ Metal seated, good seal

⊙ Low weight

⊙ Low flow resistance

⊙ Small operation torque

⊙ Easy to install and maintain

⊙ Open-close 90° more smoothly


4. APPLICABLE STANDARDS

1. Design according : API 609

2. Test standard according: JIS B2003

3. Connect flange standard according: JIS B2212

4. Face to face standard according: JIS B2002


5. Item Name of part Material Spec

NO

Part name

Material

1

Body

SS304

2

Gear box

Assembly

3

Disc

SS304

4

Stem

SS416

5

Seal ring

316+Graphite

6

packing

Graphite


6. Operation:

6.1. The two pipe flange should be smooth.

6.2. Put the butterfly valve in the pipe line, fixed the orientation hole first.


7. Delivery:

When delivery or store the butterfly valve, should keep in dry and cool environment.


8. Note:

8.1. Pipe flange should same as the butterfly valve flange.

8.2. Check the valve before installed, the environment should correspond to the butterfly valve

specification.

8.3. Before open butterfly valve, checking the disc without dirt.

8.4. The disc must be shut off place when installed.

8.5. Adjusting the pipe connect before installed.

8.6. The connect flange should be parallel.

8.7. After installed, the pressure test disc should be open place.

8.8. If the butterfly can not natural open or close, please kindly check it careful, can not strike, tamp or

use extension lever.

8.9. When maintenance or operation, must check the stem, lever, gear box or actuator have correctly

connect. Otherwise the stem will be push by pipe pressure.


9. The malfunction and resolving:

malfunction

whys

solution

Seal leak

1, Some rubbish on the seal

2, Seal have been light damage

① Clean the rubbish.

② Replacing the disc

Stem Packing leak

1, packing be damaged

2, packing lapse

① Tighten the gland nut

② Change the packing

flange leak

1, the nut release

2, gasket lapse

1 . Tighten the nut

2. Change the gasket


10. Maintenance

Open the worm box cover and add some butter per two months.

Check the seal, packing and flange, if leak, please maintain ASAP.



Specifications:

Size: DN50 - 3000
Temperature: -15℃ - 150℃
Pressure: 1.0MPa/1.6MPa

Materials
Materials of Body : Ductile Iron (GGG40, GGG50). Cast Iron (GG25), Stainless Steel


Materials of Disc : Stainless Steel. Nickel Plated, Ductile Iron, Ductile Iron Coated Plastic,

Titanium Steel, Copper Alloy etc


Materials of Seat : Ethylene-Propylene-Diene Monomer (EPDM), Polytetrafluoroethylene (PTFE),

Nitrile Rubber (NBR), Chloroprene, Chlorosulfonated Polyethylene (Hypalon),

Silicon, Fluoroelastomer (VITON) , Caoutchouc etc.


Materials of Stem : Stainless Steel. Carbon Steel ,2Cr13


A butterfly valve is a type of flow control device, typically used to regulate a fluid flowing through a section of pipe.
The valve is similar in operation to a ball valve. A flat circular plate is positioned in the center of the pipe.
The plate has a rod through it connected to an actuator on the outside of the valve. Rotating the actuator turns the
plate either parallel or perpendicular to the flow. Unlike a ball valve, the plate is always present within the flow,
therefore a pressure drop is always induced in the flow regardless of valve position.


Wafer Rubber Seated Butterfly Valves

DN
(mm)

PN
(MPa)

Connection dimensions(mm)

L

D

D1

Zφd

40

1.0/1.6

43

145

110

4-18

50

43

165

125

4-18

65

46

185

145

4-18

80

46

200

160

4-18/8-18

100

52

220

180

8-18

125

56

250

210

8-18

150

56

285

240

8-22

200

60

340

295

8-22/12-22

250

68

395/405

350/355

12-22

300

78

445/460

400/410

12-22

350

1.0

78

505

460

16-22

400

102

565

515

16-26

450

114

615

565

20-26

500

127

670

620

20-26

600

154

780

725

20-30

700

165

895

840

24-30

800

190

1015

950

24-33

900

203

1115

1050

28-33

1000

216

1230

1160

28-39

1200

254

1455

1380

32-39

1200

0.6/0.25

254

1400/1375

1340/1320

32-34/32-30

1400

279

1620/1575

1560/1620

36-34/36-30

1600

318

1820/1785

1760/1730

40-34/40-30

1800

356

2045/1985

1970/1930

44-41/44-30

2000

406

2265/2185

2180/2130

48-48/48-30






Quality Metal Seated Cast Iron Butterfly Valves With Pneumatic Actuator D373H-10K for sale
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