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Pneumatic Ball Valve

Two-piece flanged ball valve with a pneumatic actuator for fast, reliable on/off control of water, gas, oil, steam and corrosive media.

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Pneumatic Ball Valve

Pneumatic Flange Ball Valve

Two-piece flanged ball valve with a pneumatic actuator for fast, reliable on/off control of water, gas, oil, steam and corrosive media.

DN15 – DN400, flanged to GB / ANSI / DIN / JIS
Stainless steel, carbon steel or cast iron body
PTFE seat for –30 °C to 180 °C
Single or double acting actuator

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100%pressure & function tested
7–15working days lead time
12months standard warranty

Overview
Overview
What Is a Pneumatic Flange Ball Valve?

It combines a two-piece, two-way flanged ball valve with a pneumatic actuator. The body halves are bolted together around the ball, and the actuator – driven by compressed air – turns the ball a quarter turn to open or close the line.

Flanged ends give a secure, leak-free connection and make installation and maintenance simple, while the full-port design keeps flow restriction to a minimum. Pneumatic actuation is fast, economical and suitable for hazardous areas, and with the right accessories the valve can be controlled remotely from your PLC or DCS.
Benefits

Easy installation and maintenance, full bore and large flow

Tight shut-off from the ball and PTFE seat

Flanges to ANSI, JIS, GB or DIN on request

Fast response, low operating cost, explosion-proof by nature

Remote control with solenoid valve, limit switch or positioner

Assembled and tested as one unit before shipment
Ready to shipValve, actuator and limit switch box assembled, tested and packed in our Dongguan factory.

Specifications

Valve type	2-piece, 2-way flanged ball valve, full port
Actuation	Pneumatic, single acting (spring return) or double acting
Size range	DN15 – DN400
Pressure rating	1.6 / 2.5 / 4.0 / 6.4 MPa
Connection	Flange (GB / ANSI / DIN / JIS)
Body material	Stainless steel (304 / 316 / 316L), carbon steel, cast iron
Ball & stem	Stainless steel
Seat / sealing	PTFE, –30 °C to 180 °C
Media	Water, air, gas, oil, liquids, steam, corrosive media
Actuator mounting	ISO 5211, NAMUR solenoid interface
Air supply pressure	On request
Face-to-face dimensions	On request (per size and flange standard)

Dimension Drawing

Outline drawing of the valve and actuator assembly. Dimensions depend on size, pressure class and actuator – ask us for the data sheet of your configuration.

Options & Accessories
Options
Complete the Assembly

Accessories are mounted and tested on the valve before shipment, so it arrives ready to connect.
All Actuator Options
- Solenoid Valve
  NAMUR direct mount, single or double coil
- Limit Switch Box
  IP67, open / closed feedback
- Positioner
  4–20 mA modulating control
- F.R.L Unit
  Filter, regulator, lubricator
- Manual Override
  Handwheel for air failure
- Spring Return
  Fail-safe open or closed
Downloads
Catalogue
DELCO VALVE CATALOG

Our complete range in one brochure – motorized, pneumatic and control valves, pressure reducing valves, manual valves and fittings, with company profile.

Full product range

Company profile

Certificates
More Documents

Series catalogues and project documents for this valve.
Downloads open a short form (name, email, phone / WhatsApp) – the file starts right after you submit.

DELCO pneumatic actuated flange ball valve with limit switch box and solenoid valve

ISO 5211 / NAMUR
Single or double acting

Features

Engineered for Fast, Safe Automated Shut-off

The pneumatic valve series combines rapid actuation with precise flow control and low energy consumption.

Single or Double Acting
Spring-return fail-safe or double acting versions for on/off duty.
Rapid Actuation
Compressed-air drive opens and closes the valve quickly.
Full-Port Flanged Body
Full bore for minimal flow restriction and large flow capacity.
Tight Shut-off
Ball and PTFE seat seal tightly to prevent leakage and backflow.
ISO 5211 & NAMUR
Standard mounting for actuators, solenoid valves and switches.
Explosion-Proof Safety
Air actuation with explosion-proof accessories for hazardous areas.

Applications

Proven on Site, Across Industries

DELCO pneumatic valves handle water, gas, oil, steam and corrosive media in process plants worldwide. Two installations from our project showcase:

Saudi Arabia

Oil & Gas Processing
Petrochemical Plant Expansion

DELCO pneumatic flange ball valves installed as shut-off valves: ATEX Zone 2 certified, 0.4 s emergency response time, withstanding 55 °C ambient temperature.
Antwerp, Belgium

Refining & Petrochemical
Ethylene Cracker Process Optimization

DELCO pneumatic valves stabilised the quench water control loop: flow variation reduced to ±2%, with zero process trips since installation in Q2 2023.

Typical Industries

All Solutions

Pneumatic Ball Valve

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FAQs

Have Questions for Your Valve Projects?

Get expert support for standard valves, custom designs and OEM projects. Send us your inquiry NOW!

Are you a real valve manufacturer or trading company?

We are an in-house manufacturer for automated control valves and actuator assemblies. All core processes including casting, CNC machining, assembly and performance testing are completed in our own factory. OEM & ODM services are supported.
What is your typical lead-time for standard & custom valves?

Our standard lead time is 7–15 working days, with expedited options available for urgent projects. For custom valves, the delivery date is confirmed with your quotation once drawings and specifications are approved.
Can you manufacture valves according to our drawings or custom specifications?

Yes. As an OEM & ODM manufacturer we build valves and actuator assemblies to your drawings or specifications – custom painting colour, dimensions, connections, accessories and your own brand. Our engineers also provide 2D & 3D CAD models for your project approval.
What test reports come with each valve shipment?

Every valve passes 100% pressure and function testing before shipment. Depending on the order, documents include pressure and sealing test reports, Material Test Certificates (MTC: chemical analysis, corrosion, mechanical and impact tests) and actuator test reports such as the IP65 protection grade test.
What international standards do your valves comply with?

Our production follows an ISO 9001:2015 quality management system and our products carry CE, RoHS and FDA certifications. Valves are tested according to API 598, API 6D, EN 12266-1 or your own specifications.
What is your warranty policy?

DELCO valves come with a 12-month standard warranty covering manufacturing defects, including free parts. Extended service contracts are available on request, backed by 24/7 technical support by phone, email or video call.
Do you support small trial orders as well as large-volume projects?

Yes. We have no minimum order quantity, so you can start with a trial order to check our quality before moving on to volume projects. Samples can be arranged after price confirmation.