3 Way Ball Valve

 

GZP Ball Valves are manufactured to the latest edition of API 6D, API608, BS5351 and ASME BE 16.34 and tested to API 598. All valves from GZP VALVE are strictly 100% tested before shipment to guarantee zero leakage.

Three way ball valve can be devided into "L" type or "T" Type.

Two-way and three-way ball valves are the most common types of ball valves. Three-way ball valves are especially useful because they can be set up in ways that simplify the control of gas and fluid flow. For example, they can be used to divert the flow of oil from one tank to another.

 

Three-, four- and five-way ball valves are called multi-port valves. The three-way ball valve is the most common multi-port ball valve. A three-way ball valve has three ports or openings that are connected to piping or tubing for gas or fluid flow (media) to pass through. These ports are usually described as one inlet and two outlet ports or one outlet and two inlet ports depending upon the flow direction through the valve.

 

Three-way ball valves are popular because they are an economical and simple way of providing both shut off and flow direction control in a single valve body.This post focuses on the basic design differences between L-pattern (L-port) flow and T-pattern (T-port) flow in three-way ball valves. I will also describe some of the ways handle position in combination with the range of handle rotation are used to control flow through typical three-way ball valve designs.

 

The range of GZP Metal seat Ball valve design is as follows:

● Size: 2" to 48" DN50 to DN1200

● Pressure: Class 150lb to 2500lb PN10-PN420

● Material: Carbon steel and stainless steel and other special materials.

NACE MR 0175 anti-sulfur and anti-corrosion metal materials

● Connection ends: ASME B 16.5 in raised face(RF), Flat face(FF) and Ring Type Joint (RTJ)

ASME B 16.25 in butt welding ends.

● Face to face dimensions: conform to ASME B 16.10.

● Temperature: -29℃ to 425 ℃

 

GZP valves can be equipped with gear operator, pneumatic actuators, Hydraulic actuators, Electric actuators, bypasses,locking devices,chainwheels,extended stems and many others are available to meet the customers' requirements.

 

Technical data
Design	API 6D, ASME B16.34, ISO 14313, ISO 10423, ISO 17292
Pressures range	ANSI 150 ~ANSI 2500 ,PN10~PN420
Size range	DN50(2") ~DN1200 (48")
Body Material	Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel.etc.
	NACE MR-01-75/NACE MR-01-03 Special Requirements
Face to face	API 6D, ASME B 16.10,EN 558,DIN3202
Fanged RF, FF, RTJ Ends	ASME B16.5 ≤ DN600 (24") ASME B16.47 A ≥ DN650 (26")
	BS 4504,DIN 2543-2545,EN1092
Butt-Weld BW Ends	ASME B16.25 ,DIN 3239,BS 2080, EN 12627
Temperature range	-29°~ 425°C
Design feature
Construction	One,Two or Three piece body and Welded body
Port	Full bore and Reduced bore
Ball Type	Solid ball
Stem	Blowout-proof stem
Seat Sealing	Front-seat sealing, Back-seat sealing, bi-directional sealing
Valve Operation	Gear,pneumatic,Hydraulic,Electric actuators.
	By passes,locking devices,extended stem,etc
Fire Safe	API 607, BS 6755, ISO 10497-5
Other design	Anti-static design,automatic pressure relief design, emergency grease injection design, drain valve, anti-corrosion design, anti-sulfur design,etc
Inspection and Test
Visual Inspection	MSS SP-55
Material Inspection	PMI Test----Chemical Analysis
	HB Test---Hardness Test
	UT---Ultrasonic Test
	RT---Radio-graphic Test
	MT---Magnetic Test
	NDT Test Non-destructive
Dimension inspection	According to drawings
Valve Inspection and Test	API 598,DIN 3230,EN 12266,BS 5146

 

Two-way ball valves are widely used as shut-off valves for gases or liquids (media) moving through closed tube or pipe systems. This is because of their simplicity and reliability. Two-way valves have two ports or openings where pipe or tubing is connected to the valve. The ball in two-way ball valves has a single straight hole through it where the liquid or gas (media) passes through the valve.

Three-way ball valves have three ports or connections for pipe. In general, three-way valves can solve more complex flow control needs than two-way valves. This makes them useful for many types of process applications.

 

For example, one type of three-way ball valve can be used to mix purified water from one source with juice concentrate from another source. A slightly different three-way valve design could divert fuel flowing from one tank to another tank while still being able to shut off the flow of fuel entirely if needed.

 

When choosing the right three-way ball valve, it is important to both understand the key three-way valve design options and plan how the valves will be used. First, some basics.

 

 

Which Type of 3-Way Ball Valve Is Best?

The best type of 3-way ball valve for your application depends on whether you foresee a need to shut off all ports at any stage of operation or mix all three flows. If there is a requirement to close the valve completely, then you should choose an L-port. If there is a requirement to mix all three flows, then you should choose a T-port.

 

How Can I Use a T-Port 3-Way Valve but Still Shut off All the Flows?

To shut off all the flows on a T-port 3-way valve, a separate valve must be added to the two opposite branches of the tee. To close the flow off, the two valves must be closed and the ball in the 3-way valve turned to face the rear of the valve. A better solution is to install a tee piece with a single valve on each branch.

 

How to Tell Direction of Flow in a 3-Way Ball Valve

On a 3-way ball valve there will be a tee-shaped arrow indicator on the handle which mimics the cut out section of the ball inside the valve. By referring to this mark, it can be ascertained which direction(s) the flow will travel through the valve.

 

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