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Home » Products » Valve series » Soft-sealing gate valve » DIN3352 F4/F5 resilient gate valve

DIN3352 F4/F5 resilient gate valve

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Introduction:
Resilient seated gate valve has great advantages of flexible switches, reliable seal, complete seal without leakage, good elastic memory, long life service etc., and can be widely used in fluid pipeline including drainage, petrochemical, construction and energy systems etc. 
Applications & features:
1. Low torque, quick switches
  A guide sleeve made of high-intensity nylon is set up in the guideway of the valve plate, which can effectively reduce the friction between the valve body guide rail and the valve plate, decrease the abrasion of the sediment to the rubber gate, lower the switch torque and extend the life service of the gate. The driving part of the valve rod adopts double thread, which makes the switch speed of the valve twice of that of the common valve. 
2. Integrated valve deck
Adopt the combination of the integrated valve deck with the locknut (bronze) to form the combined sealing of the O-ring and bronze, PTFE gasket and screw thread. Compared with the like products, it has not leakage points at the flange, and has the compact structure with free maintenance; since the products were put into the market, there has not been maintenance case. In comparison with the sealing by the touching of traditional O ring and cast iron, the life service and sealing effect of the products in O ring has gained enhancement. 
3. High cohesion intensity between the gate rubber and the cast iron framework.
  The inner and outer surfaces of the cast iron framework are all covered with rubber, the thickness of the rubber is above the national standard, which adopts advanced glue molding technology, and the molded gate surface is smooth and clean without defects; the rubber thickness is well-distributed with high cohesion intensity, good elasticity and long life service.
4. Precision casting valves with high bearing and hard to break. 
 The valve body, deck and plate framework are all made of cast iron, adopt precision casting with precoated sand, good sealant of the casting, uniformity wall thickness, without air hole, crack and other defects, can withstand higher pressure and hard to break. The brass nut adopts die-cast formation technique, which has good physical performance and can withstand higher torque.  
5. Food-grade sanitary requirement
 The inner and outer surfaces of the valves adopt imported toxic electrostatic epoxy powder, the inner and outer surfaces of the valve plate are all covered with rubber, which will not cause rust or corrosion, and can be directly used for potable water supply system. 
Materials:

 

No.

Name

Material

1

Valve body

QT450-10

2

Valve plate

QT450-10+EPDM

3

Guide sleeve

Nylon 66

4

Valve plate nut

ZCuZn38Mn2Pb2

5

Valve rod

2Cr13

6

Flanged seal ring

NBR

7

Inside hexagonal bolt

35#(surface zinc-plating)

8

Valve deck

PT450-10

9

O-ring

NBR

10

Snap ring

ZCuZn38Mn2Pb2

11

Copper cap

ZCuZn38Mn2Pb2

12

PTFE gaskets

F4

 

Main performance list: 

 

Nominal pressure

1.0MPa

1.6MPa

Test

Pressure

Seal

1.1MPa

1.76MPa

Shell

1.5MPa

2.4MPa

Suitable temperature

-10°C80°C

Suitable medium

Water, hot water, oil products

Design manufacturing standard

GB/T12232-1989

Test & inspection standard

GB/T13927-1992

Driving Method

Hand wheel, bevel gear, electric

 

Main parts’ list

 

Name

Material

Valve body

Ductile cast iron

Valve deck

Ductile cast iron

Valve rod seal ring

NBR or EPDM rubber

Valve plate

Ductile cast iron EPDM or NBR

Valve rod

Stainless steel

Screw twisting nut

Copper alloy

 

Main structural materials: 

 

No

Parts’ name

Quantity

Material

1

Valve body

1

QT500-7

2

Valve plate

1

QT500-7/EPDM

3

Valve rod nut

1

ZCuZn38Mn2pb2

4

Valve rod

1

2Cr13

5

Sealing gasket

1

EPDM

6

Valve deck

1

QT500-7

7

Locating sleeve

1

Hpb59-1

8

O seal ringⅡ

1

EPDM

9

O seal ringⅠ

3

EPDM

10

Seal nut

1

ZCuZn38

11

Dust seal

1

EPDM

12

Hand wheel

1

Q235

13

Flat gasket

1

2Cr13

14

Outer hexagon bolt

1

2Cr13

15

Inside hexagonal bolt

8

35CrMoA

 

Main structural sizes:

 

F-V003-0050

  DN

EN 1902-2 PN10

F-V003-6050

DN

EN 1902-2  PN16

DIN3352-F  4

ФD

ФC

ФB

n-Фd

 ФD

ФC

ФB

n-Фd

L

H

F-V003-0050

50

165

125

99

4-Ф19

F-V003-6050

50

165

125

99

4-Ф19

150

270

F-V003-0065

65

185

145

118

4-Ф19

F-V002-6065

65

 185

145

118

4-Ф19

190

290

F-V003-0080

80

200

160

132

8-Ф19

F-V002-6080

80

200

160

132

8-Ф19

180

320

F-V003-0100

100

220

180

156

8-Ф19

F-V002-6100

100

220

180

156

8-Ф19

190

350

F-V003-0125

125

250

210

184

8-Ф19

F-V002-6125

125

250

210

184

8-Ф19

200

450

F-V003-0150

150

285

240

211

8-Ф23

F-V002-6150

150

285

240

211

8-Ф23

210

470

F-V003-0200

200

340

295

266

8-Ф23

F-V002-6200

200

340

295

266

12-Ф23

230

560

F-V003-0250

250

400

350

319

12-Ф23

F-V002-6250

250

400

355

319

12-Ф28

250

640

F-V003-0300

300

455

400

370

12-Ф23

F-V002-6300

300

455

410

370

12-Ф28

270

740

F-V003-0350

350

505

460

429

16-Ф23

F-V002-6350

350

520

470

429

16-Ф28

290

760

F-V003-0400

400

565

515

480

16-Ф28

F-V002-6400

400

580

525

480

16-Ф31

310

850

F-V003-0500

500

670

620

582

20-Ф28

F-V002-6500

500

715

650

609

20-Ф34

350

950

F-V003-0600

600

780

725

682

20-Ф31

F-V002-6600

600

840

770

720

20-Ф37

390

1180

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