Quick Answers: Valves

Quick reference guides for valve types, operation principles, API/ASME standards comparison, actuator selection, and flow control.

• 2-Piece vs 3-Piece Ball Valve
• 2-Way vs 3-Way Solenoid Valve
• API 600 vs API 602
• API 600 vs API 603: Gate Valve Standards
• API 6D vs API 608: Ball Valve Standards
• ASME B16.10 Face to Face Dimensions
• ASME B16.34 Valve Standard Overview
• Bronze vs Brass Valve
• Butterfly Valve Offset Types
• Butterfly Valve vs Ball Valve
• Carbon Steel vs Stainless Steel Valve
• Check Valve vs Non-Return Valve
• Class 150 vs Class 300 Valve
• Class 600 vs Class 900 Valve
• Conventional vs Balanced Relief Valve
• Cv vs Kv: Flow Coefficient Conversion
• Float Steam Trap vs Thermodynamic
• Floating vs Trunnion Ball Valve
• Forged vs Cast Valve: Material Selection
• Full Port vs Standard Port Ball Valve
• Gate Valve vs Ball Valve: Which to Choose
• Gate Valve vs Butterfly Valve
• Globe Valve vs Ball Valve
• Globe Valve vs Control Valve
• Globe Valve vs Gate Valve
• Manual vs Actuated Valve
• Metal Seat vs Soft Seat Valve
• OS&Y vs NRS Gate Valve
• Plug Valve vs Ball Valve
• Pneumatic vs Electric Actuator
• PRV vs PSV: Pressure Relief Terminology
• Rising Stem vs Non-Rising Stem
• Safety Valve vs Relief Valve
• Single vs Double Block and Bleed Valve
• Soft Seat vs Metal Seat
• Swing Check vs Dual Plate Check Valve
• Swing Check vs Piston Check Valve
• Valve Cv vs Kv
• Valve Leakage Class: API 598 vs FCI 70-2
• Valve Trim Numbers (1, 5, 8, 12)
• Wafer Check vs Lug Check Valve
• Wafer vs Lug Butterfly Valve
• Wedge vs Parallel Slide Gate Valve
• What Is an Actuator? Valve Automation
• What Is an Angle Valve?
• What Is API 598? Valve Testing Standard
• What Is API 6D? Pipeline Valve Standard
• What Is API 6FA?
• What Is ASME B16.34?
• What Is a Back Pressure Regulator?
• What Is a Ball Valve?
• What Is a Bleeder Valve?
• What Is a Butterfly Valve?
• What Is a Check Valve?
• What Is a Choke Valve?
• What Is a Cryogenic Valve?
• What Is Cv Value? Valve Flow Coefficient
• What Is DBB Valve? Double Block and Bleed
• What Is a Diaphragm Valve?
• What Is a Drain Valve? Liquid Removal
• What Is Fail-Safe Valve?
• What Is Fire Safe Valve?
• What Is a Full Bore Ball Valve?
• Gate Valve: Types & Applications
• What Is a Globe Valve? How It Works
• What Is ISO 5208? Valve Leakage Testing
• What Is a Knife Gate Valve?
• What Is Kv Value? Metric Flow Coefficient
• What Is a Lockout/Tagout Valve?
• What Is a Needle Valve?
• What Is an Oxygen Service Valve?
• What Is a Pinch Valve?
• What Is a Piston Valve?
• What Is a Plug Valve?
• What Is a Pressure Regulator?
• What Is a Pressure Relief Valve?
• What Is a Rotary Control Valve?
• What Is a Sampling Valve?
• What Is a Slide Gate Valve?
• What Is a Solenoid Valve?
• What Is a Steam Trap? Condensate Removal
• What Is Valve Cavitation?
• What Is Valve Flashing?
• What Is a Valve Positioner?
• What Is Valve Rangeability?
• What Is Valve Trim?
• What Is a Vent Valve?
• What Is a Y-Globe Valve? Oblique Pattern