High Performance Butterfly Valve
McCannalok
Size Range
NPS 2 to 66 / DN 50 to 1500
Temperature Range
-62°F to 500°F (-52°C to 260°C)
Maximum Allowable Operating Pressure
Series 40/41 ASME Class 150
Series 42/43 ASME Class 300
Series 44/45 ASME Class 600
Series 4A/4B ASME Class 150/300
EN 1092 PN 10, 16, 25, 40, 63, 100
Specifications
High Performance Butterfly Valve - McCannalok
Size Range
NPS 2 to 66 / DN 50 to 1500
Body Materials
Carbon Steel, Stainless Steel, Nickel Aluminum Bronze
Temperature Range
-62°F to 500°F (-52°C to 260°C)
Stem Materials
Stainless Steel
Maximum Allowable Operating Pressure
Series 40/41 ASME Class 150
Series 42/43 ASME Class 300
Series 44/45 ASME Class 600
Series 4A/4B ASME Class 150/300
EN 1092 PN 10, 16, 25, 40, 63, 100
Seat Materials
RTFE with Resilient Energizer, PTFE with Resilient Energizer
Fire Safe: RTFE and Inconel® with Resilient Energizer
Shutoff Rating
Zero Leakage
Disc Materials
Stainless Steel, Nickel Aluminum Bronze
Body Style
Wafer, Lug, Double Flanged
Design Standard
ASME B16.34, ASME VIII, API 609
Flange Drilling
ASME B16.5, EN 1092
Certifications
ABS, API 607, ATEX, Bureau Veritas, CCS, DNV, ISO 10497, NSF 61/372, PED, PE(S)R, SIL
Fugitive Emissions Standard
ISO 15848-1, API 641
applications
High Pressure, High Temperature, Critical Service
High Pressure, High Temperature, Zero Leakage Butterfly Valves
The McCannalok high performance butterfly valve (also known as a double offset butterfly valve) features an innovative design that offers rugged reliability and extremely easy maintenance in the field. Independent and internal tests prove the Series McCannalok valve's superior service life capability, with zero leakage shutoff.
The McCannalok valve’s unique, patented design received Chemical Processing’s Vaaler Award for Best Product shortly after it was introduced. The simple, innovative design offers rugged reliability and extremely easy maintenance in the field.
Independent and internal tests have proven superior service life capability with zero leakage shutoff through over 100,000 cycles. Series 40 Bray/McCannalok valves can be automated inexpensively with any of Bray’s pneumatic and electric actuators. The McCannalok high performance valve delivers the highest quality and highest value available for your requirements. After a test of over 100,000 cycles at 720 psi (49.6 Bar), the seat remained in excellent condition, continuing to provide a bi-directional zero leakage seal. Even after more than 878,000 cycles at 2 psi (0.1 Bar), the McCannalok high performance valve still sealed zero leakage in both directions.
Up to 285 psi (19.6 bar)
| Model |
Body Style |
Resilient Seated |
Firesafe |
Metal Seated |
| 40 |
Wafer |
2 to 66 |
2 to 48 |
2½ to 36 |
| 41 |
Lug |
2 to 66 |
2 to 48 |
2½ to 36 |
| 4A |
Double Flanged |
2 to 54 |
2 to 48 |
2½ to 36 |
| Model |
Body Style |
Resilient Seated |
Firesafe |
Metal Seated |
| 40 |
Wafer |
50 to 1500 |
50 to 1200 |
65 to 900 |
| 41 |
Lug |
50 to 1500 |
50 to 1200 |
65 to 900 |
| 4A |
Double Flanged |
50 to 1400 |
50 to 1200 |
65 to 900 |
Up to 740 psi (51 bar)
| Model |
Body Style |
Resilient Seated |
Firesafe |
Metal Seated |
| 42 |
Wafer |
2 to 36 |
2 to 36 |
2½ to 30 |
| 43 |
Lug |
2 to 54 |
2 to 36 |
2½ to 30 |
| 4B |
Double Flanged |
3 to 42 |
2 to 36 |
2½ to 30 |
| Model |
Body Style |
Resilient Seated |
Firesafe |
Metal Seated |
| 42 |
Wafer |
50 to 900 |
50 to 900 |
65 to 750 |
| 43 |
Lug |
50 to 1400 |
50 to 900 |
65 to 750 |
| 4B |
Double Flanged |
80 to 900 |
50 to 900 |
65 to 750 |
Up to 1440 psi (100 bar)
| Model |
Body Style |
Resilient Seated |
Firesafe |
Metal Seated |
| 44 |
Wafer |
3 to 24 |
3 to 24 |
3 to 12 |
| 45 |
Lug |
3 to 36 |
3 to 36 |
4 to 12 |
| Model |
Body Style |
Resilient Seated |
Firesafe |
Metal Seated |
| 44 |
Wafer |
80 to 600 |
80 to 600 |
80 to 300 |
| 45 |
Lug |
80 to 900 |
80 to 900 |
100 to 300 |
