Description

Technical Parameters

Introduction

All-welded ball valves are available in bulk and can be customized. They are suitable for pipeline fluid control in high-temperature, high-pressure, and corrosive media.

Parameter

Parameter / Feature	Specification / Description
Model	P70FWB or OEM
Construction	Full welded body / Forged body
Size	2"-60" (ANSI 150), 2"-48" (ANSI 300), 2"-36" (ANSI 600), 2"-24" (ANSI 900), 2"-20" (ANSI 1500), 2"-12" (ANSI 2500)
Pressure Rating	PN10-420 / ANSI 150-2500
Connection	RF Flange or other methods on request
Materials	ASTM A105 Carbon Steel / ASTM A479 F304 / ASTM A479 F316 Stainless Steel
Seats	Soft or metal seated
Mounting Pad for Actuator	ISO 5211
Working Temperature	-196℃ to +400℃
Main Standard	API 6D / ISO 14313
Special Test / Certification	EN 10204 Type 3.2 Material Certification, API 641 Fugitive Emissions, PMI, NDE tests
Ball Type	Trunnion mounted ball
Sealing Options	Self-relief, double piston effect, or combination (DIB2)
Extended Stem	For underground buried service
Anti-Blowout Stem Design	Yes
Welding Process	Qualified per ASME Section IX, suited to construction materials
Non-Destructive Testing (NDT)	Performed on circumferential weld joints according to ASME VIII Division 1, App. 12

Features of All Welded Ball Valve

High Pressure Resistance

The valve body structure can withstand PN420/ANSI 2500 pressure, suitable for high-pressure industrial pipeline applications

Corrosion Resistance

All welded ball valves are made of carbon steel, stainless steel, or corrosion-resistant alloys, suitable for acid, alkali, and saline water media, with a service life of over 10 years.

Precision Sealing

The tolerance between the valve ball and seat is ≤0.2mm, offering soft seal or metal hard seal options, with a leakage rate of less than 0.01%.

Customization

Customization Aspect	Options / Description
Valve Body Material	Carbon steel, F304/F316 stainless steel, or special alloy steel
Body Diameter	DN50 to DN1500 (2"-60")
Pressure Rating	PN10-420 / ANSI 150-2500
Connection Method	RF flange or other welding/connection methods
Seat Type	Soft seal, metal hard seal, or self-relieving seal
Actuation Method	Manual, pneumatic, or electric
Special Applications	Extended stems for high-temperature, corrosion resistance, or underground burial
Surface Treatment	Polishing, sandblasting, or anti-corrosion coating

FAQ

Q: What piping systems can the All-Welded Ball Valve be used in?

A: The All-Welded Ball Valve is suitable for petrochemical, natural gas, power, and chemical pipelines.

Q: How to install?

A: It can be installed by welding or flange, ensuring the valve is coaxial with the pipeline. Installation is simple and reliable.

Q: How to clean?

A: The valve body and ball can be flushed with a neutral detergent to prevent corrosive media from damaging the internal seal.

Q: How to maintain?

A: With a simple structure and no external bolts, only periodic cleaning and lubrication of the valve stem are required.

Q: What fluids are the All-Welded Ball Valve suitable for?

A: The All-Welded Ball Valve can control water, oil, gas, and mildly corrosive chemical liquids.

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