Water, Oil, Gas
Stainless Steel
Flange
Electric
PN1.0-32.0MPa
Straight Through Type
Floating Ball Valve
Floating Ball Valve
on-off Ball Valves
-30degree to 180 Degree
DIN Standard
Industrial Usage, Water Industrial Usage, Household Usage
ISO9001-2015, CE
Electric Three-Way Ball Valve
OEM, ODM
PTFE/Rptfe
2 Way
Low Torque
Wax Lost Investment Casting Technology
Full Bore
WELFLOW
Plywood Cases
DN15(1/2") to DN200(8")
China
8481804090
Product Description
Ball Valve Series Valve Manufacturer Flange Wafer Type Brass Stainless Steel Material Pneumatic Electric Actuator Ball Valve
Introduction
Electric flange ball valve is composed of a flange ball valve equipped with an electric actuator. It relies on power drive to operate the opening and closing of the valve and adjust the size of the medium. According to the sealing structure, it can be divided into soft seal and metal hard seal to be suitable for different applications. Among the working conditions and media. It is especially suitable for occasions where the medium is viscous, contains particles and fibers, and is widely used in petroleum, chemical industry, metallurgy, light industry, papermaking, power stations, refrigeration and other working fields.




Type | BALL VALVES |
Customized support | OEM, ODM |
Brand Name | WELFLOW |
Model Number | Q915F |
Power | Electric |
Port Size | 1/2in-3in |
Product name | Electric three-way ball valve |
Material | SS304 |

Main Parts of Material
NO | Parts Name | Material |
1 | Body | CF8/CF8M |
2 | Bonnet | CF8/CF8M |
3 | Ball | SS304/SS316 |
4 | Seat | PTFE/RPTFE |
5 | Stem | SS304/SS316 |
6 | Stem Washer | PTFE |
7 | Stem Packing | PTFE |
8 | Gland Nut | SS304 |
9 | Spring Washer | SS304 |
10 | Gland | SS304 |
11 | Stopper | SS304 |
12 | Spring Snap Ring | SS304 |
13 | Handle | SS304/SS |
14 | Spring Snap Ring | SS304 |
15 | Nut | SS304(A2-70) |
16 | Nut | SS304(A2-70) |
17 | Bolts | SS304(A2-70) |
Dimension(mm)
Size | D | D1 | D2 | D3 | n-d | T1 | T | L | K | H |
1/2" | 15 | 45 | 65 | 95 | 4-14 | 2 | 16 | 115 | 9 | 80 |
3/4" | 20 | 58 | 75 | 105 | 4-14 | 2 | 18 | 120 | 9 | 85 |
1" | 25 | 68 | 85 | 115 | 4-14 | 2 | 18 | 125 | 11 | 90 |
11/4" | 32 | 78 | 100 | 140 | 4-18 | 2 | 18 | 130 | 11 | 100 |
11/2" | 38 | 88 | 110 | 150 | 4-18 | 3 | 18 | 140 | 14 | 115 |
2" | 50 | 102 | 125 | 165 | 4-18 | 3 | 20 | 150 | 14 | 125 |
21/2" | 65 | 122 | 145 | 185 | 4-18 | 3 | 18 | 170 | 17 | 145 |
3" | 80 | 138 | 160 | 200 | 8-18 | 3 | 20 | 180 | 17 | 152 |
4" | 100 | 158 | 180 | 220 | 8-18 | 3 | 20 | 190 | 17 | 175 |
5" | 125 | 181 | 210 | 250 | 8-18 | 3 | 22 | 325 | 27 | 242 |
6" | 150 | 205 | 240 | 285 | 8-22 | 3 | 22 | 350 | 27 | 270 |





QUESTION? | ANSWER |
1. Are you a factory? | Yes, Welflow is a factory located in Wenzhou, Zhejiang, China. |
2. Do you have any requirements of MOQ? | No limited to MOQ but the difference in unit price. |
3. Payment Terms | Typically 30% T/T as deposit, 70% against copy of BL/ Or balance L/C at sight. |
4. Nearly Sea Port | Ningbo or Shanghai Port |
5. Terms: | FOB Ningbo/Shanghai, CIF, FCA, etc. |
6. Delivery Time: | Typically, it is 30-35 days after receiving the deposit payment. However, almost all of the items we have stock in 304. |
7. Could you accept color Marks or Color Boxes? | Yes, both are acceptable; we have experience with them. |
8. Could you accept marking our logo on the products? | Yes, on the handle or the bodies, both are okay. 1. Print on the Handle (NO MOQ requirements) 2. Laser Marking. (NO MOQ requirements) 3. Carvings(NO MOQ requirements) 4. Casting on the bodies (Has MOQ requirements) |
9. Do you have Material Certificates? | Yes, if required, Each item will be laser marked with Heat NO. and the material certificates. |
10. How do you deal with customer complaints, such as quality issues? | This is an issue we take very seriously. As long as it is confirmed to be a quality issue, we will take full responsibility. 1. exchange or refund is acceptable. It mainly depends on how you need to deal with it. |












Key Parts of Ball Valves
Body: The body of the valve, made from stainless steel, is the outer casing and provides the main structure. It contains the internal parts and has connections (ports) for the pipeline.
Ball: The ball is the central component that controls the flow of fluid. It's a sphere with a hole through the middle, which aligns with the pipeline when the valve is open and is perpendicular to it when the valve is closed.
Stem: The stem is the part that connects the handle to the ball. When the handle is turned, the stem rotates the ball.
Seat: The seats are rings of softer material (often PTFE or another plastic) that form a seal between the ball and the body when the valve is closed. There are typically two seats, one on either side of the ball.
Seals: Seals or packing material are used to prevent leakage along the stem. They ensure that when the valve is closed, no fluid can escape.
Bonnet: The bonnet is a part of the valve body that holds the stem. It's often bolted onto the body and provides a seal to prevent leaks.