316 Flanged butterfly valves and ASME B16.34 Grooved Butterfly Valve Suppliers

Butterfly Valves are gate valves but the gate does not rise or lower into the valve body for the control of liquid flow. The gate is made in a disc shape with the center attached to an axis that connects to the handle outside the body. The gate resembles a butterfly with central axis and two wings. The Butterfly Control Valves are used to control the flow of fluids in most applications such as water, oil and others. The valves do not get the water hammer effect as they never leave the valve chamber and are always in contact with the fluid. The perpendicular turn inside the body against the axis of fluid flow controls the space opened inside the pipe and controls the flow. The Butterfly Check Valves are used in maintenance systems.

Stainless Steel Butterfly Valve

Stainless Steel Butterfly Valve

316 Flanged butterfly valves

316 Flanged butterfly valves

ASME B16.34 Grooved Butterfly Valve

ASME B16.34 Grooved Butterfly Valve

Double Offset Butterfly Valve Manufacturers In India, View Teflon Lined Butterfly Valves Dimensions

These valves can come in different sizes. There are smaller diameter valves and larger diameter valves. These valves are efficient against low viscosity fluids. High viscosity fluids can block the Butterfly Gate Valves as the valve gate is always fully present in the seating. The materials used are the austenitic stainless steel types. These are some of the cheapest and most commonly used valves. These Teflon Lined Butterfly Valves are valves with an additional Teflon protective layer for corrosion resistance and wear and tear resistance both from the environment and the material flowing inside.

 

Specification List of Butterfly Valves

Size 50NB — 600NB
Pressure 150PS1
Temperature 0 Deg C - 1200 Deg C.
Body , Chest Solid One piece casting of Cast Iron Fg 260, Cast Steel Gr WCB ,CF8,CF8M.
Seat Integral to Body, Soft, Optional.
Gate AISI SS 304,316,316L,317,317L
Screw Spindle AISI SS 410,304,316.
Nut Brass
Yoke Plate type of MS .
Gland Follower Cast Iron , Cast steel , Ductile Iron ,CF8,CF8M.
Hand Wheel Cast Iron , Cast steel , Ductile Iron
Gland Packing PTFE , PTFE Impregnated
Ends Lugged
Port STANDARD [Round], Optional V Port, Diamond Port,.

Manufacturing Standards of Eccentric Butterfly Valve

  • Designed according to EN 593
  • Face-to-face dimension according to EN 558 Table 2 Basic Series 13
  • Flange drilling EN1092-2 (ISO 7005-2), PN 25

PN25 Double Eccentric Butterfly Valve Material

Part Name Material
1. Body IS1865 SG Iron 400/15
2. Disc IS1865 SG Iron 400/15; ASTM A351 CF8/CF8M S.S.
3. Seat Nitrile Rubber
4. Shaft IS 1570 C.S. GRADE 40C 8, SS 410
5. O-Ring Nitrile Rubber
6. Bush Nylon
7. Lever / Gear Box Carbon Steel
8. Lever / Gear ,     Operated 200mm and above Size

Temperature Rating of PN25 Butterfly Valves

Temperature Rating 20°C to 80°C

Hydraulic Test of Lugged Butterfly Valves

Hydraulic Test: Body-37KG/CM2
  Seat-28KG/CM2

Leading Grooved Butterfly Valve Suppliers, Refer High Performance Stainless Steel 304 Butterfly Valve Price List

Dimensions of PN25 Butterfly Valves

PN25 Butterfly Valves

SIZE(mm) A B C D
40 33 50 96 73
50 43 64 105 91
65 46 69 111 101
80 46 76 118 114
100 52 94 137 150
125 56 106 156 173
150 56 121 181 206
200 64 150 214 252
250 70 195 245 320
300 82 227 268 374

Butterfly Valves Dimensions (2"-12")

Butterfly Valves

Size
2
2-1/2
3
4
5
6
8
10
12
A
9-3/8
10-3/16
10-11/16
13
14
15-3/16
17-3/4
20-1/2
23-1/2
B
5-3/8
5-15/19
6
7
7-9/16
7-15/16
9-3/16
10-1/2
12-1/16
C
3
3-1/4
3-11/16
4-13/16
5-1/4
5-7/8
6-15/16
8-3/8
9-13/16
D
1-3/4
1-7/8
1-7/8
2-1/8
2-1/4
2-1/4
2-1/2
2-13/16
3-1/8
E (51,52)
4-1/4
4-15/16
5-7/8
6-15/16
7-3/4
8-3/4
11
13-3/8
16
E (53)
4-1/4
4-15/16
5-7/16
6-1/16
7-1/2
8-1/16
10-3/4
13-1/8
15
E (55,56)
4
4-3/4
5-1/4
6-5/16
7-1/2
5-1/2
10-5/8
12-1/2
14-3/4
F
8
8
8
11
11
11
16
16
16
G
.561
.561
.561
.686
.686
.811
.936
1.123
1.247
H
3-1/4
3-1/4
3-1/4
3-1/4
3-1/4
3-1/4
4-3/4
4-3/4
4-3/4
J
9/32
9/32
9/32
9/32
9/32
9/32
17/32
17/32
17/32
K
6
6
6
6
6
6
10
10
10
L
4-3/4
5-1/2
6
7-1/2
8-1/2
9-1/2
11-3/4
14-1/4
17
M
5/8-11, UNC
5/8-11, UNC
5/8-11, UNC
5/8-11, UNC
3/4-10, UNC
3/4-10, UNC
3/4-10, UNC
7/8-9, UNC
7/8-9, UNC
N
4
4
4
8
8
8
8
12
12
P
2
2-1/2
3
4
5
6
8
10
12
Q
6
7
7-1/2
9-1/8
10
11-1/4
13-3/4
16
19
R
3
3
3
3
3
3
3
3
3

Butterfly Valves Dimensions (14"-24")

Size
14
16
18
20
24
A
25-3/4
29-1/16
32
35-3/8
40-3/16
B
13-1/8
14-1/2
16
17-1/2
19
C
10-3/8
12-1/8
13
15
17-7/16
D
3-5/8
4-1/8
4-5/8
5-1/8
6-1/8
E
17-3/4
20-1/4
21-5/8
23-7/8
28-1/4
G
1-3/4
2
2-1/4
2-1/2
3
H
4-3/4
6
7-1/2
7-1/2
7-1/2
K
16
16
16
16
24
L
18-3/4
21-1/4
22-3/4
25
29-1/2
M*
1-8, UNC
1-8, UNC
1-1/8 –7 , UNC
1-1/8–7, UNC
1-1/4–7, UNC
N
12
16
16
20
20
P
13-1/4
15-1/4
17-1/4
19-1/4
23-1/4
Q
21
23-1/2
25
27-1/2
32
R
3
3
3
3

Various Butterfly Valves Types

CF8 Stainless Steel Teflon Lined Butterfly Valves

CF8 Stainless Steel Teflon Lined Butterfly Valves

SS Double Offset Butterfly Valve

SS Double Offset Butterfly Valve

A351 CF8 Grooved Butterfly Valve

A351 CF8 Grooved Butterfly Valve

Stainless Steel 304 Butterfly Valve

Stainless Steel 304 Butterfly Valve

CF8M Stainless Steel Triple Offset Butterfly Valve

CF8M Stainless Steel Triple Offset Butterfly Valve

A351 CF8M Class 150b Butterfly Valve

A351 CF8M Class 150b Butterfly Valve

Testing of Cast Iron Butterfly Valve

  • Body Test Pressure : 2.4MPa (348 Psig) Hyd.
  • Seat Test Pressure : 1.6MPa (232 Psig) Hyd.

Material & Components of Cast Iron Butterfly Valve

Lever M.I. IS:14329 PVC Sleeve
Pin, Lower Stem, Upper Stem S.S AISI304
Cover Plate Carbon Steel --
Body C.I. IS:210 Gr.FG200
Body Lining EPDM --
Disc S.S. CF8M
Screw Carbon Steel --,
Bolts & Nuts Carbon Steel Min UTS 390N/mm²,
We are leading stockist of Pn16 Butterfly Valve, View Weight Chart of CF8M Stainless Steel Triple Offset Butterfly Valve

Dimension Table of CI Butterfly Valves

p>Butterfly Valves

Nominal Size , Nominal Size (Inches) F ØD H LL W
40 1.1/2 33 85 145 200 --
50 2 43 95 150 200 --
65 2.1/2 46 110 165 200 --
80 3 46 124 175 200 --
100 4 52 153 200 260 --
125 5 56 174 210 260 --
150 6 56 209 245 260 --
200 8 60 260 335 -- 225
250 10 68 315 375 -- 225
300 12 78 370 400 -- 225
350 14 92 418 485 -- 320
400 16 102 470 535 -- 320
450 18 114 525 575 -- 450
500 20 127 575 606 -- 450
600 24 154 693 695 -- 450

Eccentric Butterfly Valve of Size Range

Size Range 50mm to 300mm

Parts & Material of Eccentric Butterfly Valve

1. Key Stainless steel A2
2. Shaft, drive Stainless steel 420
3. Seal housing Bronze
4. O-ring EPDM rubber
5. O-ring EPDM rubber
6. Self-lubricating bearing Steel, PTFE coated
7. Disk cover Stainless steel
8. Disk cover gasket EPDM rubber
9. Dowel Stainless steel
10. Disk Ductile iron GJS-500-7 (GGG-50)
11. O-ring EPDM rubber
12. Centre flange Ductile iron GJS-500-7 (GGG-50)
13. Security plate Stainless steel
14. Screw Stainless steel A2
15. O-ring EPDM rubber
16. Spring washer Stainless steel A2
17. Washer Zinc
18. O-ring EPDM rubber
19. Body Ductile iron GJS-500-7 (GGG-50)
20. Nut Stainless steel A2
21. Washer Stainless steel A2
22. Bolt Stainless steel A2
23. O-ring EPDM rubber
24. Washer Stainless steel A2
25. O-ring EPDM rubber
26. Bolt Stainless steel A2
27. Seal retainer ring Steel
28. Disk seal EPDM rubber
29. Screw Stainless steel A2
30. Bolt Stainless steel A2
31. O-ring EPDM rubber
32. Washer Stainless steel A2
33. O-ring EPDM rubber
34. Safety key Stainless steel A2
35. End plate Ductile iron GJS-500-7 (GGG-50)
36. Gasket EPDM rubber
37. Screw Stainless steel A2
38. Thrust bearing Bronze
39. Screw Stainless steel A2
40. Shaft, stub Stainless steel 420
41. Screw Stainless steel A2
42. Gearbox Cast iron

Advantages of Butterfly valves

  • Compact design requires considerably less space, compared to other valves
  • Light in weight
  • Quick operation requires less time to open or close
  • Available in very large sizes
Ready stock of ASTM A351 CF8M Class 150b Butterfly Valve in Wide sizes, Stockholder of SS Wafer Type Butterfly Valve

Disadvantages of Butterfly valves

  • Throttling service is limited to low differential pressure
  • Cavitation and choked flow are two potential concerns
  • Disc movement is unguided and affected by flow turbulence