
Stainless Steel Food Grade Pneumatic Non-Retention Ball Valve - Tri-Clamped
Designed for critical hygienic applications, the Pneumatic Non-Retention Ball Valve ensures zero media retention with its polished 304/316L stainless steel construction and seamless internal geometry.

Why Engineers Specify This Item
- Featuring a quick-disassembly tri-clamp design, it enables rapid cleaning and maintenance without specialized tools while meeting AS, BS, 3A, SMS, and DIN standards for dimensional compliance.
- The FDA, 3A, and CE-certified valve eliminates dead zones through its full-bore ball structure, preventing bacterial growth in pharmaceutical ingredient transfer and dairy processing pipelines.
- Pneumatic actuation provides precise flow control and failsafe operation in automated CIP/SIP systems, reducing contamination risks during high-purity fluid handling.
What It Prevents
- Industrial ball valves with dead pockets behind the seat that trap product and fail a swab test
- Two-piece bodies that cannot be opened for inspection without cutting the line
- Diverting arrangements built from three separate valves and a nest of fittings
Technical Data
Figures below are the catalogue range for this item. Exact dimensions are confirmed in writing against the standard you work to before production.
| Material | SS 304 or SS 316L for option |
|---|---|
| Media | Water, oil, milk, beverage, sanitary fluid etc |
| Connection | Butt-Welded, Thread, Clamped, Flange |
| Size Range | 1"-6" |
| Pressure | 0-20Bar |
| Working Temperature | -20 C to 120 C |
| Standard | AS, BS, 3A, DIN, SMS, ISO |
| Gasket | EPDM/SILICON/PTFE/VITON |
| Certification | 3A, FDA, CE Ball Valve Catalog |
Materials
- SS 304
- SS 316L
Manufacturing Process
- Machining
- Forming and welding
- Interior polishing
- Assembly
- Quality inspection
Quality Control
- Dimensional check against the standard stated on the order
- Surface finish verified against the specified Ra figure
- Visual and leak inspection before packing
- Material certificates to EN 10204 3.1 available on request
Where It Is Installed
- Product line isolation ahead of a positive displacement pump
- Switching a single feed between two storage tanks
- Sampling point isolation on a fermentation loop
- Drain valve on a vessel that must empty completely
Who Buys It
- Plant engineers replacing non-hygienic industrial valves on product contact lines
- Equipment builders who need a valve that can be stripped for validation
- Process lines that route one feed to several destinations
What It Is Built To
- 3A
- FDA
- CE Ball Valve Catalog
What We Can Change
- Non-standard sizes made to your dimensions
- Special connection types and mixed-standard ends
- Customised surface finish down to Ra 0.4 um
- Seal material selected for your media and CIP cycle
How It Compares
Compared with Sanitary Butterfly Valves
Specify the Stainless Steel Food Grade Pneumatic Non-Retention Ball Valve - Tri-Clamped where the duty is what this category is built for: full bore shut-off where the line must drain clean and the pressure drop has to stay near zero, including 3-way and 4-way diverting bodies. Move to sanitary butterfly valves instead where the requirement is compact on-off isolation for hygienic pipework, from a hand lever on a 1 inch transfer line to a pneumatic actuator on a tank outlet.
Compared with Sanitary Diaphragm Valves
Specify the Stainless Steel Food Grade Pneumatic Non-Retention Ball Valve - Tri-Clamped where the duty is what this category is built for: full bore shut-off where the line must drain clean and the pressure drop has to stay near zero, including 3-way and 4-way diverting bodies. Move to sanitary diaphragm valves instead where the requirement is the valve to use when the actuation mechanism must be completely isolated from the product, for high purity water, media and sterile transfer.
Compared with A general industrial equivalent
An industrial-grade part of the same nominal size is usually cheaper and carries no declared hygienic surface finish, no crevice-free joint geometry and no material certificate. On a product contact line that difference shows up at the first swab test, not on the purchase order.
Installing and Living With It
Bring the two ferrule faces square before closing the clamp. Fit the gasket dry and seated in the groove, then tighten the clamp evenly; overtightening extrudes the gasket into the bore.
Purge the bore with inert gas before welding and keep heat input low so the heat affected zone does not discolour. Polish the internal weld to the finish specified for the rest of the line.
Do not use tape or sealant on a hygienic union thread. The seal is made by the gasket at the liner seat, not by the thread, so check the gasket is seated before tightening the nut.
Align the flange faces parallel before drawing the bolts up, and tighten opposite pairs in stages so the gasket is loaded evenly across the face.
Keep the duty inside the stated working temperature range of -20 C to 120 C. Running a CIP cycle hotter than the seal material allows is the most common cause of early failure on this item.
Do not exceed the 0-20Bar working pressure. Where the line sees pressure pulsation, specify a heavy duty or bolted clamp at the joints either side.
Record the standard, size, material and seal material fitted, so the replacement ordered in two years matches what is installed today.
Others in the Ball Valves Range

Stainless Steel Food Grade Pneumatic Straight-Way Ball Valve - Tri-Clamp

Stainless Steel Food Grade 2-Way Ball Valve - Clamped - Type 2

Stainless Steel Hygienic 3-Way Ball Valve - Clamped Manual

Stainless Steel Hygienic Straight-Way Ball Valve - Female Threaded
Guides That Cover This Item
304 or 316L Stainless Steel for Hygienic Process Equipment
Both are supplied as standard on everything in this catalogue. The choice is about chlorides and welding, not about one grade bein...
How to Choose Between Butterfly Ball Diaphragm and Check Valves
Four valve families, four different jobs. Picking on price rather than duty is how you end up with a valve that cleans badly or we...
Industries This Item Serves
Related Capability
Stainless Steel Food Grade Pneumatic Non-Retention Ball Valve - Tri-Clamped FAQ
What we are asked before this item is ordered.
What sizes is the Stainless Steel Food Grade Pneumatic Non-Retention Ball Valve - Tri-Clamped available in
The catalogue range is 1"-6". Dimensions follow the AS, BS, 3A, DIN, SMS, ISO standards. Confirm the tube outside diameter and wall thickness you work to when you enquire and we will match the exact dimensions before production.
Which material should I specify for the Stainless Steel Food Grade Pneumatic Non-Retention Ball Valve - Tri-Clamped
Material options are SS 304 or SS 316L. Choose 316L where chlorides are present or where the item will be welded into a line that has to be validated; 304 is adequate for neutral product and standard caustic CIP. Material certificates to EN 10204 3.1 are available on request.
Which seal material suits my cleaning cycle
The Stainless Steel Food Grade Pneumatic Non-Retention Ball Valve - Tri-Clamped is supplied with EPDM/SILICON/PTFE/VITON sealing options. EPDM is the default for hot water and caustic CIP, silicone for high temperature steam contact, PTFE for aggressive chemicals and Viton for oils and fats. Tell us the media and the peak CIP temperature and we will specify it on the order.
What is the lead time and minimum order for this item
Standard catalogue items such as the Stainless Steel Food Grade Pneumatic Non-Retention Ball Valve - Tri-Clamped are typically 7-15 days, and small quantity orders of standard items are accepted. Custom sizes, special connections and bulk quantities are quoted with a confirmed date before production starts.
Quote the Stainless Steel Food Grade Pneumatic Non-Retention Ball Valve - Tri-Clamped
Send the size, media, working pressure, temperature and the standard you work to. We confirm dimensions, material and finish in writing before quoting.