Marine Cast Iron Gate Valve - Marine Gate Valve - Hi-sea

Marine Cast Iron Gate Valve

Marine Cast Iron Gate Valve

Introduction:

This product is suitable for controlling the opening and closing of the medium in the fuel pipeline, lubricating oil pipeline, water pipeline and steam pipeline to prevent backflow when the temperature does not exceed 120℃.
Flange size is according to JIS B2220 steel pipe flange size.

Configuration Selection:

Name of Parts

Material

Advantages/Disadvantages

Valve Body

Bronze

seawater corrosion resistance.

Cast Steel

The price is higher than cast iron and lower than bronze.  It has high mechanical strength and toughness.  With heat resistance, corrosion resistance, wear resistance and other special properties.

Cast Iron

Anti-corrosion, it’s cheaper than cast steel and bronze.

Valve Disc

Bronze

Bronze has excellent low temperature resistance and is a little more expensive than stainless steel.

Stainless Steel

Stainless steel will not corrode, pit, rust or wear and stainless steel is resistant to high temperatures.

Valve Stem

Stainless Steel

A good acid and alkali - resistant, heat resistant properties

Brass

It has the advantages of high strength, toughness, good antifriction, high corrosion resistance in the atmosphere and sea water, but it has the tendency of corrosion and rupture

Valve Seat

Bronze

Anti-corrosionit’s expensive than cast steel and cast iron.

Cast Iron

Not resistant to corrosion,cost less than bronze and cast steel

Hand Wheel

Cast Iron

Cost less than bronze and cast steel

Specific Differences Between US and Other Suppliers:

Product Picture of other low quality supplier


Product Picture of our factory


Other low quality supplier

Consequence

Our Factory

Result

Jerry-built, the valve body wall thickness does not follow the standard processing

Uneven thickness and material, it’s easy to damage the valve body.

Strictly in accordance with the standard processing

Customer use rest assured, to meet user needs, the product has long service life.

Use recovered waste valves as good valves.

It is easy to cause the shell to crack, and in severe cases, the oil and gas pipelines will explode.

Strictly in accordance with customer material requirements to manufacture new valves.

Meet the hardness and precision requirements of standard valves,
Ensure the valve quality, ensure the normal operation of equipment.

Flange manufacturing quality is poor, there are cracks, pores, thickness is not enough and other problems

Lead to poor wear resistance of the valve, the valve is prone to quality problems, short service life.

Material selection in strict accordance with national standards

Valve wear resistance, pressure performance is good, not easy to damage

Bronze valve disc was replaced with cast iron valve disc in order to reduce costs.

Cast iron valve disc is prone to corrosion and damage

Material selection in strict accordance with national standards

High safety factor, reasonable structure

The valve stem hardness is too low, there are cracks, the valve stem is not round, and the valve stem is not bent and straight.

Stem sealing surface is easy to damage

Material selection in strict accordance with national standards

High stem hardness, no crack, good sealing performance, long service life of the valve.


Outline drawing:

①Valve BodyCast Iron(FC200)

②Valve SeatBronze(BC6)

③Valve DiscBronze(BC6)

Valve Stem:Brass (C3771BD)

Specification:

Size

L

D

C

NO.

h

t

H

D2

kg

50

200

155

120

4

19

20

300

140

19.4

65

220

175

140

4

19

22

350

160

27.6

80

230

185

150

8

19

22

400

180

33

100

250

210

175

8

19

24

450

200

45.8

125

270

250

210

8

23

24

520

224

65.9

150

290

280

240

8

23

26

580

250

86

200

320

330

290

12

23

26

700

315

136

250

380

400

355

12

25

30

840

400

230

300

440

445

400

16

25

32

960

450

331

350

500

490

445

16

25

34

1050

500

433

400

590

560

510

16

27

36

1150

560

597

450

640

620

565

20

27

38

1260

600

704

500

710

675

620

20

27

40

1380

680

901

Our Inventory:


Certification:

Contact with us now

Our mail: hs@cqhisea.com

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