VALVAX
VX-BFV-DO-1714

Concentric Design Butterfly Valve – Class 150 (6" and below)

API 609 concentric (centric-disc) lug-type butterfly valve for small-bore lines, with a worm-gear operator. Stellite 6 body seat and EPDM/PTFE disc seat for bubble-tight shutoff.

API 609API 609, CAT.-BASME B16.5API 598
Pressure
Class 150
Size Range
2" to 6"
Testing
API 598

⚠ Pending engineering review: Pending engineering sign-off: pressure figure is a hydro-test (shell) value, not a confirmed Class rating.

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VX-BFV-DO-1714HYDRO-TESTED · API 598
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01

Pressure Rating

Class 150 (32 Kg/cm²)

Reference standard & materials

Same data as the printed catalogue

Reference standard

MFG. STD
API 609
Face to Face
API 609, CAT.-B
Wafer End
Suitable to mount ASME B16.5
Lug End
ASME B16.5
Flange End
ASME B16.5
Insp. & Test.
API 598
Press & Temp.
ASME B16.34
Double Offset / Triple Offset section with numbered callouts

Material of construction

No.DescriptionCarbon SteelStainless SteelDuplexLow Carbon Steel
01BodyASTM A216 GR.WCBASTM A351 GR.CF8MASTM A995 GR.5AASTM A352 GR.LCC
02DiscASTM A216 GR.WCBASTM A351 GR.CF8MASTM A995 GR.5AASTM A351 GR.CF8
03StemASTM A182 GR.F6aSS 316ASTM A182 GR.F53SS 304 / SS 316
04Disc SeatPTFE / Metal SeatPTFE / Metal SeatPTFE / Metal SeatPTFE / Metal Seat
05Bottom CoverASTM A216 GR.WCBASTM A351 GR.CF8MASTM A995 GR.5AASTM A352 GR.LCC
06'O' RingViton / PTFEViton / PTFEViton / PTFEViton / PTFE
07L.N. Cap ScrewStainless SteelStainless SteelStainless SteelStainless Steel
08Body Seat RingStainless SteelStainless SteelStainless SteelStainless Steel
09L.N. Cap ScrewStainless SteelStainless SteelStainless SteelStainless Steel
10Body SeatStellite 6Integral with body or Stellite 6Integral with body or Stellite 6Stellite 6
11Gear BoxStandardStandardStandardStandard
12Seal O-RingViton / PTFEViton / PTFEViton / PTFEViton / PTFE

Dimensions

mm · ASME B16.5 flange details · weights on request

Double Offset / Triple Offset dimensioned sectionDouble Offset / Triple Offset dimensioned sectionDouble Offset / Triple Offset dimensioned section
150#Model no. VX-BFV-DO-1711
Face to Face (A)Flange Details, ASME B16.5
SizeA (WF)A (LUG)A (FE)ODPCDRFDTØHNOperating System
2"4545108152120.692.114.31904Lever
2.5"4848112178139.7104.815.71904Lever
3"4848114190152.4127.017.51904Lever
4"5454127229190.5157.222.41908Lever
5"——140254215.9185.722.42208Lever
6"5757140279241.3215.923.92208Lever
8"6464152343298.4269.926.92208Lever
10"7171165406362.0323.828.42512Gear Box
12"8181178483431.8381.030.22512Gear Box
14"9292190533476.2412.833.32912Gear Box
16"102102216597539.8469.935.13216Gear Box
18"114114222635577.8533.438.13216Gear Box
20"127127229698635.0584.241.13220Gear Box
24"154154267813749.3692.246.03520Gear Box

Technical specifications

Material
Body: ASTM A216 GR.WCB (CS) / ASTM A351 GR.CF8M (SS)
Pressure Rating
Class 150 (32 Kg/cm²)
Temperature Range
-10°C to +200°C (EPDM/PTFE disc seat limited; CS body to +427°C)
Eng Note
Pending engineering sign-off: pressure figure is a hydro-test (shell) value, not a confirmed Class rating.
Size Range
2" to 6" (DN 50–150)
Disc
ASTM A216 GR.WCB / ASTM A351 GR.CF8M
Stem
ASTM A182 GR.F6a (CS) / SS 304 / SS 316
Disc Seat
EPDM / PTFE
Body Seat
Stellite 6 (CS) / Integral with body or Stellite 6 (SS)
End Types
Lug End (ASME B16.5)
Face T To Face
API 609, Category B
Operating System
Lever or Gear Box
Model Numbers
VX-BFV-DO-1714 (Cl.150)

Standards & testing

  • MFG. STD: API 609
  • Face to Face: API 609, CAT.-B
  • Lug End: ASME B16.5
  • Insp. & Test: API 598
  • Press. & Temp: ASME B16.34

Custom engineering

Special trims, exotic materials and non-standard dimensions are available against your datasheet — send it with your quote request and our engineering team will respond with a compliant proposal.

Related valves in this family

Double Offset Lug Butterfly Valve – Class 150 / 300 / 600 (8" and above)

API 609 double-offset (double-eccentric) butterfly valve in wafer, lug, and flanged-end configurations. Stellite 6 body seat and EPDM/PTFE disc seat for bubble-tight shutoff in industrial service.

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