Short Description

Model No.: 3-way-Ball-Valve

China Valves Manufacturer www.sfutube.com offers 3 way Ball Valve.

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Key Specifications / Features

Type: 3 Way Ball Valve
Material: A536,A126,WCB,LCB,CF8,CF8M.CF3.CF3M,CN7M,904L

Size: 1/2″ (DN15) – 80″ (DN2000)

Design: API 6D, API 6DSS, ASME B16.34, ISO 14313, ISO 17292

Design pressure: ASME B16.34, EN 1092-1, ISO 17292
Temperature Range: -29°C to 180°C 
Suitable Medium:Water,Gas,Air And Some Corrosive Liquid

Pressures range: PN20 (ANSI 150) to PN420 (ANSI 2500)

End connections:

  • ASME B16.5 ≤ DN600 (24″) Flanged RF,FF,RTJ
  • MSS-SP-44 = DN550 (22″) Flanged RF,FF,RTJ
  • ASME B16.47 A ≥ DN650 (26″) Flanged RF,FF,RTJ

What is a 3 way ball valve

Multi-way valves can be three, four, and five-way ball valves. The most popular multi-port ball valve is a 3-way ball valve. A three-way ball valve has three ports or entry points for gas or fluid flow (media) to move through that are attached to piping or conduit. Depending on the flow path through the valve, these ports are typically defined as one inlet and two outlet ports or one outlet and two inlet ports.
3-way ball valves are common because they are a cost-effective and easy way to control both shutoff and flow paths in a single valve body.
Controlling the flow through a three-way ball valve is achieved by a variation of how the pipe is lined up, how the valve ball rotates the handle, and how the valve ball flows through the ball.
There are many ways a 3-way ball valve can serve or control the flow depending on different process requirements, one can achieve it using the right valve type and setup.

How does a 3-way ball valve work

There are two types of 3-way ball valves, which are a little different from the common ball valve working.
The L-pattern style or diverter valve makes a shift in the flow from one port to the other by rotating the handle or actuator to 90 degrees. Suppose the first position is opened by the bottom port and the left port. A quarter turn in the counter-clockwise direction causes the valve to divert the flow of the media to the right outlet. Another quarter turn in the other direction, allowing a complete rotation of 180 degrees, blocks the passage of media. A 270-turn will also obstruct the media movement. However, having a complete 360-turn enables the valve to return to its original place. In a manner, two of the three ports are available at one time. This makes it possible for the valve to have two shut-off positions and three flow choices.
The T-pattern is called a mixer valve since the media of two inlet flows can be mixed within the valve. It’s leaving the valve on the other end. In a way, all three ports can be opened at one time. The T-pattern ball valve will also act as a diverter so that it can operate in the same manner as the L-type valve. It could be achieved with a quarter-turn of the handle. T-patterns cannot have a bubble-tight shut-off, but they can restrict the flow to two ports or facilitate the passage to all three ports.
As a mixer, the T-pattern ball valve will separate the media into two opposite directions. Its design helps the T-pattern to divide the flow or simply make a straight-through flow pattern, just like the two-way ball valve. The typical port is still open for the vertically mounted T-pattern ball valve. The only way to divert the flow is by turning it a quarter turn. A 180-turn is not going to alter the flow of the media.

Classification of 3-way ball valve

  • L-Type patterns ball, also known as 90-degree balls, are most widely used to facilitate flow from a single common inlet port to one of two separate outlet ports. This is why L-Type pattern flow three-way ball valves are generally referred to as diverter valves.
  • T-pattern flow balls, also known as 180-degree balls, are commonly used to merge two inlet flows into one common outlet port. The opposite is, also possible depending on the system requirements. T-pattern flow valves are useful for more than just separating or dividing flow. They may also act as L-pattern flow valves, diverting flow from one outlet port to the other. They may include diversion flow, mixing or split flow, and straight through flow based on the permissible range of handle motion.
  • Floating: The ball is held in place in a floating ball valve by the compression of the two elastomeric seats against the ball. Within the valve body, the ball is free to float. This valve configuration also allows bi-directional shut-off. When the upstream pressure is high, the floating valve is highly difficult to operate.
  • Forged 3 way ball valves are made by a procedure called forging, which includes shaping metals and alloys when they are solid. Forged valves are known for their strength, making them suitable for high-pressure and high-temperature applications. The grain structure of the metal becomes more refined during the forging process. As a result, effect and overall strength increase. Forging also improves its resilience to typical problems including cracks, shrinkage, and porosity.
  • Casting 3 way ball valves, as compared to forging 3 way ball valves, requires a liquid type of metal to produce valves. These metals are melted poured into moulds of different shapes and sizes. The liquid is broken out of or extracted from the mould until it has cooled and solidified. One of the most important advantages of casting is that it allows for the production of valves with complex shapes, designs, and sizes. When you use a mould to create these instruments, you have more versatility in terms of making various types of valves with more critical parts.
  • Manual: Here valves are operated manually with the help of a hand-wheel or a hand lever and used normally to start and stop the flow.
  • Actuated: A valve actuator is a mechanical system that controls a valve with the aid of a power source. This source of power may be electrical, pneumatic, or hydraulic.

How to selection 3-way ball valve

The main consideration while selecting the right valve for your application are:
Determine the fluid to be used in the system, this is required to choose the right and equivalent valve seal.
Determine the pressure rating of the system where the valve needs to be fitted.
Know the temperature to which the system usually works on.
Check the connection type whether the valve is compatible to be connected to the piping or not.
The material used for the valve body must be compliant with the existing process lines and appropriate for the process temperature and pressure.
Determine the operation mechanism of the valve and whether it is feasible for application in the existing system.

Material of 3 Way Ball Valve

No. PARTS NAME MATERIAL
1 Body ASTM A351 CF8M/CF8
2 Cap ASTM A351 CF8M/CF8
3 Seat PTFE/RPTFE
4 Ball ASTM A351 CF8M/CF8
5 Cap Gasket PTFE
6 Thrust Washer PTFE
7 O-Ring VITON(FKM)
8 V-Ring Packing PTFE
9 Gland SS304
10 Belleville Washer SS301
11 Stop Nut A194-B8
12 Stop Washer SS304
13 Washer SS304
14 Stem Nut SS304
15 Stem SS304/SS316
16 Handle SS304
17 Locking Device SS301
18 Handle Cover Plastic
19 Anti-Static Device SS301

The material selection for stainless steel 3 way ball valve with higher platform mounting pad, 1000 WOG. Other material are available upon request.

We focus on valves in standard and special materials as customer request.

Our main materials show as the follows:

Any request for other materials, please contact our machinery sales or engineering team on email.

Special Material Titanium or Titanium alloy series Titanium(Gr.2,Gr.3,Gr.5,Gr.7,Gr.12)
Nickel alloy series Ni6,Ni200,Ni201
Monel 400,Monel k500
Inconel 600/625/690/750
Incoloy 800/825/800H/800HT
Hastelloy B3/C/C4/C22/C276/G30
Zirconium alloy series Zirconium 702/703/705
Bronze alloy series Nickel aluminum bronze C95800
(Super)Duplex Steel ASTM F51/F53/F55
Other corrosion resistance Alloy 20,AISI 321,310,904L
Normal Material Carbon Steel WCB,WCC,LCB,LCC,A105N,LF2
Alloy Material(Low Temperature) LC1,LC2,LC3,LF3
Alloy Material(High Temperature) WC1,WC6,WC9,C5,C12A
Stainless Steel CA15,CF8,CF8M,CF3,CF3M

Dimensions of Fully Welded Ball Valve

drawing ss 3 way ball valve with higher platform mounting pad - 3 Way Ball Valve

DN L Φd H H1 E B □P ΦR Φr ΦA1 ΦA2 ISO 5211
1/4″ 65 8 36 62.5 120 34 9 42 36 6 6 F03-F04
3/8″ 65 8 36 62.5 120 34 9 42 36 6 6 F03-F04
1/2″ 68 12 36 62.5 120 34 9 42 36 6 6 F03-F04
3/4″ 75 15 39 66 120 37.5 9 42 36 6 6 F03-F04
1″ 85 18 46.5 77 160 42.5 11 50 42 7 6 F04-F05
1-1/4″ 110 25 55 86 160 55 11 50 42 7 6 F04-F05
1-1/2″ 125 32 64.5 101.5 190 62.5 14 70 50 9 7 F05-F07
2″ 145 38 70.5 107.5 190 72.5 14 70 50 9 7 F05-F07

Dimensions of 3 way ball valve with higher platform ISO 5211 mounting pad, 1000 WOG. All dimensions are in mm unit.

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