Three-Way Ball Valve

What is a three-way ball valve?

The three-way ball valve is divided into two types: T shape and L shape. The latter can connect the two vertical pipes; The former can be applied to the distributary, interflow, and switching, the pore canal of the T shape can connect the three passes or the passes of the three. The three ways ball valve usually uses the construction of the two valve seat and it can also use the construction of the four-valve seat according to the user's demands. In this installation, any entrance can be used by an inlet that will not leak in any case. The seal construction has two constructions: soft seal and metal seal which can be applied to different industrial and mineral conditions accordingly.

Three-Way Ball Valve
Three-Way Ball Valve
Three-Way Ball Valve
Three-Way Ball Valve Structure
Three-Way Ball Valve Structure
Technical Specification
Design ReferenceGBASME

Design Standard
GB/T 12237ASME B16.34
Face to Face GB/T 12221ASME B16.10
Flanged Ends JB/T 79ASME B16.5
Test & InspectionJB/T 9092API 598

*Notes: The sizes of serial valve connecting flange can be designed according to customer's requirement.

Form of Major Parts Materials
NO. Part name Material
4Machine screwGraphite+stainless steelGraphite+stainless steel
5Sealing ringPTFEPTFE
7Sealing ringPTFEPTFE
9Sealing ringPTFEPTFE

Sealing ring

12"O" RingVitonViton


14Packing seat1Cr13A276-410
15* Stem1Cr13A182-F6a
16Machine screwPTFEPTFE
17PackingFlexible GraphiteFlexible Graphite
18Screw nail35CrMoAA193-B7
20Locating pieceQ235ACarbon steel
21Ring65MnAISI 1566
22WrenchKT330-08A47-667 32510

Products Specification

Serial modelsQ44、Q644、Q944
ClassPN1.6-4.0MPaClass 150-300
Driving manner and
scope of application
WrenchPN1.6-4.0MPaClass 150-300
Air OperatedPN1.6-4.0MPaClass 150-300
ElectricPN1.6-4.0MPaClass 150-300

Notes: Our company can provide products at customer's request.

Products Performance Specification


Pressure1.6-5.0MPaClass 150-300
Test pressure
Shell test1.5*PN
Sealing test1.1*PN
Working temperature-196℃-+330℃
Working mediumWater, oil, natural gas, corrosive medium, etc.

The analysis of the opening and closing theory

"T" type ported
"T" type ported
"L" type ported
"L" type ported
Real line: "T" type ported Broken line: "L" type ported

Real line: "T" type ported
Broken line: "L" type ported

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