Double Offset Butterfly Valve
Specifications
High Performance Butterfly Valve Metal Seated
Size Range NPS 2½ to 30 / DN 65 to 750
Body Materials Stainless Steel, Carbon Steel
Temperature Range Capabilities up to 900 °F (482°C) 3rd party-validated
Stem Materials 17-4 PH Stainless Steel: ASTM A564 Type 630 H1150D
Stainless Steel: ASTM A479 316 Strain Hardened Level 1 Maximum Allowable Operating Pressure
Stainless Steel: ASTM A479 316 Strain Hardened Level 1 Maximum Allowable Operating Pressure
ASME Class 150, 300, 600
Seat Materials Inconel® 718
Shutoff Rating Class IV
Disc Materials Nitride Stainless Steel, ASTM A351 CF8M
Body Style Wafer, Lug, Double Flanged
Design Standard ASME B16.34, ASME VIII, API 609
Flange Drilling ASME B16.5, EN 1092
Testing Standard ANSI/FCI 70-2-2013, IEC 60534-4
Certifications ABS, DNV, PED, PE(S)R
Face To Face API 609, ISO 5752
Fugitive Emissions Standard ISO 15848-1, API 641
Applications
High temperature, Abrasive, Hot Oil, Hot Air & Gas, Saturated Steam, Slurries, Chemical Processing, Modulation and Control
Features & Benefits
The Metal Seated high performance butterfly valve has been extensively performance tested in our state-of-the-art technology center and test laboratory. The Inconel® 718 metal seat has been contoured to provide control, strength and flexibility in high temperature applications. The Technology Group’s design validation procedure includes cycle, torque and leakage testing to ensure long service life.
Features:
- Body Style: Wafer, Lug and Double Flanged
- ASME Class 150 and 300: 2 -1/2” – 30” (65mm – 750mm)
- ASME Class 600: 3” – 14” (80mm – 350mm)
- Capabilities up to 900 °F (482 °C)
- Wear-resistant Inconel® 718 metal seat provides industry leading low torque
- 3rd party validated high temperature tested
- High strength, anti-blowout one piece stem
- Nitride disc for abrasion resistance
- Contoured disc to maximize flow
- Full face retaining ring protects seat in abrasive applications
- Easily accessible and adjustable stem packing
- Class IV bi-directional leakage rates through full pressure range tested in accordance to IEC 60534-4 and ANSI/FCI 70-2-2013
- Alternative flange drilling available
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