Butterfly Valve

Size

50mm to 450 mm.

Body

S.G. Iron, WCB, CF8(SS 304) or CF8M(SS 316) Lined With FEP/PFA

Body Seat (Sleeve) I Lining

FEP/PFA 50mm to 200mm above 200mm PTFE.

Flapper

ASTM A 351 GR. CF 8 (S.S. 304). ASTM A 351 GR. CF 8M (S.S. 316) ASTM A216, WCB

Flapper Lining Material

FEP/PFA. Lining Thickness: - 3 to 5 mm THK.

Design

Two Piece As per BSEN E: API

Temp. Resistant

FEP :-20 to 180° PFA :-20 to 230°

Testing

Hydro Test-11 kg /cm2 to Full Vacuum as per BS/API Pneumatic Test - 7 kg/cm2 Spark Test-15 KVA DC

F to F

As per Class 150

Body

ASTM A395 (DI) / ASTM A 216 (WCB)

Flapper

WCB / CB7 Cu1 / CF8 /CF8M

Lining (Sleeve and Flapper)

PFA ASTM D- 3307

Hydro Test Body

AT 11.0 KG/CM2 AFTER LINING

Pneumatic Test

AT 07.0 KG/CM2 AFTER LINING

Spark Test

AT 15 KV DC AFTER HYDRO TEST

Lining Thickness

AS PER ASTM F 1545

Dimensions and Visual Check

100%

SIZE

L

F

50 NB

265

43

65 NB

265

46

80 NB

265

46

100 NB

350

52

125 NB

350

56

150 NB

430

56

200 NB

430

60

250 NB

Gear Box

68

300 NB

Gear Box

78

350 NB

Gear Box

78