Pneumatic ball valve · 3-piece threaded · Made in Wenzhou
Pneumatic 3-Piece Threaded Ball Valve — ½″ to 4″
Three-piece stainless steel ball valve with female threaded ends and a pneumatic actuator. The centre body swings out for seat replacement without taking the end pieces out of the line.
- Valve and actuator from one plant
- Pressure-tested before shipment
- Standard sizes ship in 15–20 days
An engineer replies within 24 hours. Send size, pressure, body material, actuator type and quantity.
Specifications
Technical Data
| Pneumatic Q611F | |
|---|---|
| Size | ½″–4″ (DN15–DN100) |
| Nominal pressure | 0–4.0 MPa |
| Body | CF8 · CF8M |
| Valve standard | GB as standard; JIS or ANSI on request |
| Body material options | Body material can be changed to suit your media (e.g. 316L, or WCB carbon steel); tell us what you need |
| Seat | PTFE |
| Stem | 304 |
| Sealing ring | NBR |
| Medium temperature | −20 °C to +180 °C |
| Ambient temperature | −20 °C to +60 °C |
| Action | Double-acting, or single-acting (spring return: fail-close or fail-open) |
| Control | On-off, or modulating with a valve positioner |
| Hazardous areas | Standard, or explosion-proof (Ex-marked actuator and accessories) |
| Air supply | 0.3–0.8 MPa, clean neutral gas or air |
Application
Where It Is Used
Small-bore automated lines where a compact, serviceable valve is needed.
- Water, oil and gas lines
- Compressed air and utility lines
- Skids and OEM equipment
- Chemical dosing (CF8M body)
ASSEMBLY HALL · WENZHOUDimensions
Dimensions (mm)
d = bore · L = length · A = actuator width · H = height.
Pneumatic Q611F-16P/R
| Size | d | L | A | H | Pneumatic actuator |
|---|---|---|---|---|---|
| ½″ | 15 | 75 | 146 | 137 | AT50 |
| ¾″ | 20 | 80 | 146 | 141 | AT50 |
| 1″ | 25 | 90 | 146 | 151 | AT50 |
| 1¼″ | 32 | 110 | 163 | 172 | AT63 |
| 1½″ | 38 | 120 | 163 | 185 | AT63 |
| 2″ | 50 | 140 | 214 | 209 | AT75 |
| 2½″ | 65 | 185 | 252 | 240 | AT88 |
| 3″ | 78 | 205 | 270 | 264 | AT100 |
| 4″ | 98 | 240 | 316 | 310 | AT115 |
Real photos
Pneumatic 3-Piece Ball Valves at Our Plant
SOLENOID + FILTER REGULATOR
LIMIT SWITCH
IN PRODUCTION
ASSEMBLY HALLTesting
Pressure Test on Every Valve
| Test | Pressure |
|---|---|
| Shell test (water) | Per rating |
| Seat test | Per rating |
Actual test pressures for each valve are on the test report.
SHELL & SEAT TEST
ACTUATED VALVESQuality records
A Test Report in Every Shipment
- Heat number of the body casting
- Materials of body, ball and stem
- Shell and seat test pressures
- Open/close check of the assembly
- Signed and stamped by our QC department
We welcome third-party inspection (e.g. SGS or BV), arranged and paid for by the buyer; inspectors get full access to our plant and test bench.
Download Sample Test Report (PDF)Options
Actuators & Accessories
- Solenoid valve
- Limit switch box with open/close indication
- Air filter regulator
- Valve positioner for flow regulation
- Manual override
- Valve to GB, JIS or ANSI standard; body material to suit your media
Accessories are fitted to order. Tell us the control signal, voltage and air supply and we confirm the package with your quote.
Send us these 7 details for a fast quote
- Valve size and thread type (BSP / NPT)
- Valve standard (GB / JIS / ANSI) and body material
- Double- or single-acting; fail position
- Air supply pressure
- Accessories (solenoid, limit switch, positioner, explosion-proof)
- Media and temperature
- Quantity and destination port
Made by BAUTU
From Casting to Actuated Assembly
01 CASTING
02 MACHINING
03 ACTUATOR FITTING
04 PRESSURE TEST
ACTUATED VALVES · WENZHOUSee your valves before they ship
Book a live video call and we show your assemblies opening and closing on our bench before packing.
Book a Video TourFAQ
Frequently Asked Questions
Double-acting or single-acting actuator?
A double-acting actuator uses air to open and air to close, and stays where it is if the air fails. A single-acting (spring-return) actuator uses air in one direction and a spring in the other, so the valve moves to a set position, usually closed, when the air fails.
Why choose a 3-piece ball valve?
The centre body is held between two end pieces by bolts. Open the bolts and the centre body swings out, so you can change the seats without cutting or unscrewing the pipe.
How do I install an actuated ball valve?
Before installation, run a seat leak test and a few open/close cycles without load: the valve must move smoothly with no sticking. Clean the bore, sealing faces and pipe flanges, and tighten the connection bolts evenly. The valve can be installed in any position; leave room for maintenance and manual operation.
What maintenance does the valve need?
Check the seals regularly and replace them when worn. Clean dirt and deposits from the valve without scratching the ball. Lubricate moving parts, and add a little lubricating oil inside the pneumatic cylinder about every 18 months. Always cut off the air and power supply before working on the valve.
What documents ship with the valve?
A product test report with the heat number of the body casting, materials and the pressure test results. We welcome third-party inspection (e.g. SGS or BV), arranged and paid for by the buyer.
What is the lead time?
Standard sizes ship in 15–20 days. Special actuators, voltages or accessories may take longer; we confirm the date with your quote.
Can I get this valve to JIS or ANSI, or in another material?
Yes. GB is our standard build; we can also make the valve to JIS or ANSI and change the body material to suit your media. Tell us the standard, pressure class and material with your enquiry and we confirm the details with your quote.
Need a Quote for This Valve?
Send size, pressure, body material, actuator type and quantity. An engineer replies within 24 hours.