Description

Technical Parameters

Introduction

The 3pc Trunnion Mounted Ball Valve is a ball valve used for fluid control in industrial pipelines. It is available in bulk and can be customized.

Parameter

Parameter	Options / Description
Construction	3 pieces Flanged Split Body
Size	DN1/2" – DN10" (PN10-40 / ANSI150-ANSI300) DN1/2" – DN400 (PN100 / ANSI600) DN1/2" – DN250 (PN130-PN420 / ANSI900-ANSI2500)
Pressure Rating	PN10-420 / ANSI150-2500
Connection Method	RF Flange or other connections on request; compatible with ASME B16.5 and EN 1092-1
Valve Body Material	ASTM A105 Carbon Steel / ASTM A479 F304 / ASTM A479 F316 Stainless Steel; alloy steel available on request
Seat Material	Soft (PTFE, RTFE, PEEK) or Metal Seated
Mounting Pad for Actuator	ISO 5211
Working Temperature	-196 ℃ to +400 ℃
Face-to-Face Standard	ANSI B16.34 / ASME VIII Div.1 / EN 12516-1
Flange Facing	RF according to EN 1092-1, PN63-100, ASME B16.5, ANSI600
Flange Drilling	Metric holes according to EN 1092-1, PN63-100 / ASME B16.5, ANSI600
Tightness Class	API 598 Cl. A / ASME B16.104 / FCI 70-2 Cl. VI / GOST 54808 Cl. A / Grade A (Zero Leakage) acc. EN12266-1 / ISO 5208
Stem Design	Anti Blow-Out

Features of 3pc Trunnion Mounted Ball Valve

High Pressure Resistance

The 3pc Trunnion Mounted Ball Valve uses ASTM A105 carbon steel or F316 stainless steel valve bodies, capable of withstanding Class 150-2500 pressures, ensuring safe and stable operation in high-pressure pipelines.

Corrosion Resistance

Valve body and core treated with anti-corrosion coating, suitable for acids, alkalis, and seawater, extending service life 2–3×.

Double Block and Bleed (DBB)

Supports DBB design to isolate upstream and downstream pressures for safe relief and reliable sealing.

Customization

Parameter	Options / Description
Valve Body Material	Carbon steel, Stainless steel, or Alloy steel (available upon request)
Connection Method	Flange, Threaded, or Welded; compatible with ANSI, DIN, and other standards
Actuation Method	Manual, Pneumatic, or Electric (available upon request)
Seat Material	PTFE, PEEK, RTFE, or Metal Seal (available upon request)
Size	DN1/2" – DN600 and above (available upon request)
Pressure Rating	PN10-420 / ANSI150-2500 (available upon request)

FAQ

Q: How do I clean the 3pc Trunnion Mounted Ball Valve?

A: After disassembling the valve body, it can be rinsed with water or a chemical cleaning solution.

Q: Is it easy to maintain?

A: Yes. The three-piece design facilitates disassembly and parts replacement. We offer a quick parts replacement service.

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