28" 150LB Wafer Style Butterfly Valve Drilled as per ASME B16.47 series B
28" 150LB Wafer Style Butterfly Valve Drilled as per ASME B16.47 series B - Image 2
28" 150LB Wafer Style Butterfly Valve Drilled as per ASME B16.47 series B - Image 3
28" 150LB Wafer Style Butterfly Valve Drilled as per ASME B16.47 series B - Image 4
28" 150LB Wafer Style Butterfly Valve Drilled as per ASME B16.47 series B - Image 5

28″ 150LB Wafer Style Butterfly Valve Drilled as per ASME B16.47 series B

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Description

TECHNICAL DATA SHEET
PRODUCT: 28″ 150LB WAFER BUTTERFLY VALVE (ASME B16.47 B DRILLING)

1. VALVE SPECIFICATIONS

Parameter Specification
Valve Type Centric Wafer Butterfly Valve
Nominal Size 28″ (DN700)
Pressure Rating 150LB (PN20)
Face-to-Face Length EN558 Series 20 (165 mm)
End Connection Wafer per ASME B16.47 B Drilling
Design Standard API 609, EN 593
Leakage Class EN 12266-1 Class A (Zero Leakage), API 598

2. DIMENSIONAL COMPLIANCE

Standard Requirement Compliance
EN558 Series 20 Face-to-Face (DN700) 165 mm ✅
EN 558-1 Mounting Dimensions Compliant ✅
EN 1092-2 Type B Flange Drilling (Series B) 8×Ø34.9 mm ✅
EN 12627 Stem Dimensions ISO 5211 F05 ✅

3. MATERIALS (EN/ISO STANDARDS)

Component Material Standard Grade
Body EN 1561 / ISO 1083 EN-GJS-500-7 (Ductile Iron)
Disc EN 10283 G-X6CrNiMo 17-12-2 (Stainless Steel)
Stem EN 10088-3 1.4021 (X20Cr13, Martensitic SS)
Seat Seal EN 681-1 NBR P80 (Nitrile Rubber)

4. TESTING & CERTIFICATION

Test Standard Result
Shell Test EN 12266-1 3.0 MPa (PN30) ✅
Seat Leakage Test EN 12266-1 Class A (Zero Leakage) ✅
Cyclic Endurance Test EN ISO 17292 5,000 cycles ✅
Fire Safety Test EN ISO 10497 Passed ✅
CE/PED Certification 2014/68/EU Category II ✅

5. CRITICAL DIMENSIONS (EN558 SERIES 20)

Dimension Value Tolerance
Face-to-Face Length (L) 165 mm ±0.8 mm
Flange Drilling (EN 1092-2 Type B)
– Bolt Circle Diameter 1016 mm ±1.5 mm
– Bolt Holes 8 × Ø34.9 mm H14
Disc Thickness 38 mm +1.0/-0.5 mm

6. OPERATIONAL LIMITS

Parameter Value
Temperature Range (NBR Seat) -20°C to +120°C
Max Working Pressure 20 bar @ 120°C (290 psi)
Operating Torque 10,200 N·m (7,520 lb·ft)
Flow Characteristic Equal Percentage (EN 60534)

7. INSTALLATION REQUIREMENTS (EN SPECIFIC)

  1. Flange Alignment

    • Max angular deviation: 0.5° (EN 1591-1)

  2. Bolt Torque Sequence

    • EN 1591-1 Annex G cross-pattern

    • Torque: 850 N·m (M36 bolts)

  3. Gasket Requirement

    • EN 1514-2 Type PN20 DN700 (Inner-ring spiral wound)

    • Compression: 25-30% (EN 13555)

8. COMPLIANCE DOCUMENTATION

  • ✔️ Declaration of Conformity (EN 10204 3.1)

  • ✔️ Material Test Certificates (EN 10204 2.2)

  • ✔️ PED Module H Assessment Report

  • ✔️ EN 10204 3.2 for Pressure Parts

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