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Home » Products » VALVES » FEP PFA lined Butterfly Valves

FEP PFA lined Butterfly Valves

FEP PFA lined Butterfly Valves
FEP PFA lined Butterfly Valves
Product Code : 73
Product Description

FEP PFA lined Butterfly Valves

A butterfly valve is a valve which can be used for isolating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to that of a ball valve, which allows for quick shut off.

Butterfly valves are typically utilized in large line sizes in chemical services, waste and water treatment applications and fire protection systems.
Due to the valve design, incorporating a small face-to-face dimension and lower weight than most valve types ,the butterfly valve is an economical choice for larger line sizes.

Specifications:

  • Additional advantages of the butterfly valve are standard face to face dimensions, relatively high coefficient of flow (Cv) and their availability in chemically resistant materials.
  • The butterfly valve is considered a high recovery valve, since only the disc obstructs the valve flow path. The Cv is relatively high; the pressure drop across the valve is relatively low. Hence the pump size is minimized and system wear reduced compared to that of low recovery valves.
  • For an economical valve choice in larger chemical process lines and waste and water treatment lines, the butterfly valve is hard to beat.

Applications:
As stated earlier, Butterfly Valves are generally specified for most air, gas, steam, and liquid applications. They offer an excellent, economically priced, positive shut-off valve for handling materials (e.g. gases and liquids) that are easily displaced by the valve disc as it closes. When handling this type of material, butterfly valves provide a reliable, bubble-tight, bi-directional shut off.

Body Material

  • Ductlie Iron GGG40.3/ ASTM A395
  • Cast Steel, ASTM A216 Gr. WCB
  • Cast Iron IS2108 FG 260
  • ASTM A351 Gr. CF8/ AISI S.S. 304
  • ASTM A351 Gr. CF8M/ AISI S.S. 304

Lining Material

  • FEP (PTFE) - ASTM D211 + , Type IV
  • PFA (PTFE) - ASTM D 307, Type II
  • ETFE (PTFE) - ASTM D 3159, Type I, Gr. I

Technical Specification

  • Flange: As per ANSI B16.5/ B 16.42
  • Drilling: ASA # 150/ DIN 2632/2633/ BS 10 Table D, E or F/ Customer Specification
  • Fact to Face ANSI B16.5/ Din 3202/ BS EN 558-1/2
  • Lining Thickness: 3 to 5 mm
  • Testing Standard: BS EN 12266 - 1 & 2 (2003)

Test and Inspection Data

  • Spark Test: 15 K.V.D.C
  • Pneumatic Test: Seat - 6 kg/cm2
  • Hydraulic Test: Body - 20 Kg/Cm2, Seat - 11 Kg/cm2

Material Specifications

Description

MOC

Body

Graded CI/ DI/ WCB/ SS + FEP PFA Lined.

Disc

Graded CI/ DI/ WCB/ SS + FEP/ PFA Lined

Shaft - 1

S.S. 304, 316, 410

Shaft - 2

S.S. 304, 316, 410

Bush

PTFE

Handle

MS

Dimensions Details

Size

L

L1

H1

H2

D1

D2

50

43

4

116

59.5

89

28

65

46

10

130

65.5

101

47

80

46

16

136

74.5

119

67

100

52

23

15

87.5

145

83

125

56

32

168

95

158

107

150

56

45

180

121

202

136

200

60

67

385

145

250

185

250

68

88

450

175.5

311

234

300

78

106

525

195

350

280

350

78

130

575

-

-

328

400

102

144

640

-

-

377

  • All Dimensions are in mm
  • Specifications are subject to change without notice. Dimensions are indicative and informative only. 

ATS HYDRAULIC ENGINEERS

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