PTFE Seat SS Hytork Actuated Pneumatic Butterfly Valves

The High Performance Wafer Pattern PTFE Butterfly Valve is a high-temperature, chemical resistant valve that can handle extreme conditions. The internal seal of this unit consists of non-toxic and durable material. High-quality pneumatic components drastically improve your production line's efficiency. The Hytork XL range comes standard with a powder-coated surface treatment providing extra protection against aggressive environments. As part of the Emerson portfolio (Hytork) we can also offer the Asco range of Pilot Solenoid Valves & TopWorx Valve Limit Switch Box, keeping all actuation components under the one brand. This includes Ex d, Ex-ia and Safe Area.

Key Features

Key features and benefits of the 40WP4040F0XL Actuated Butterfly Valves.
1

Key Features

The PTFE Seat or Lined Butterfly Valves are designed to shut off liquids, slurries and bulk solids with excellent reliability in highly aggressive environments. They're suitable for use on a wide range of processes from pharmaceuticals manufacturing through to petrochemical.
2

Key Features

Hytork has developed a unique ceramic-like coating (CEREMIGARD) for its internal parts that protects pneumatic actuators from corrosion caused by exposure to moisture and chemicals found in the environment where they operate.
3

Key Features

The Hytork XL range of pneumatic actuators offer suitable alternative to hydraulic. The high torque output units are quiet, clean, precise and easy to install. Whether you are an OEM looking for small or large scale production requirements we have the manufacturing capabilities to deliver.

Wafer SS PTFE Seat Butterfly Valve Dims

A B C A B C D E
SR SR SR DA DA DA SR/DA SR/DA
1.5" 116.50 262.40 221.80 116.50 262.40 221.80 TBA 33.00
2" 143.01 300.05 331.60 133.50 294.40 292.00 TBA 43.00
2.5" 143.01 305.05 331.60 133.50 299.40 292.00 TBA 46.00
3" 158.50 328.90 349.80 143.10 313.05 331.60 TBA 46.00
4" 170.00 363.00 348.00 143.10 331.05 331.60 TBA 52.00
5" 190.00 410.00 582.00 170.00 382.00 243.00 TBA 56.00
6" 190.00 419.00 582.00 156.00 384.00 292.00 TBA 56.00
8" 190.00 459.00 582.00 156.00 424.00 292.00 TBA 60.00
10" 240.00 482.00 647.00 174.00 452.00 324.00 TBA 68.00
12" 253.00 574.00 862.00 199.00 514.00 396.00 TBA 78.00
14" TBA TBA TBA TBA TBA TBA TBA TBA
16" TBA TBA TBA TBA TBA TBA TBA TBA
18" TBA TBA TBA TBA TBA TBA TBA TBA
20" TBA TBA TBA TBA TBA TBA TBA TBA
24" TBA TBA TBA TBA TBA TBA TBA TBA

Wafer SS PTFE Seat Butterfly Valve 3D

Actuated Valve Testing & Calibration

All actuated valve assemblies are fully tested and calibrated in house prior to packing and shipping from our expert team of technical engineers. This means that when they arrive at site, you're immediately ready to install and get your production back up and running.

4-20mA Control Available On This Product

The BLX V100E Series is an Electro-Pneumatic control unit that allows the Actuator to incrementally adjust the Valve's position between the fully open and closed cycle. Product variants are available for spring return and double acting setups with feedback and safety settings. Ask our team today about how the V100E can help with your process requirements.

Need More Dimensions?

No time for fancy software or your tekkers are just pretty substandard? We offer a full technical drawing service for our actuated valves. The Artists are ready to draw. Tell us what you need.

Valve Standards & Stuff

Body Material: CF8M Stainless Steel
Disc Materials: Stainless steel (CF-8M), Duplex
Shaft Materials: AISI 316, 17-4PH, Duplex
Face To Face: ISO 5752 Series 20, BS 5155 Wafer, DIN 3202 Part 3, Series K1
Pressure Testing: EN 12266-1, DIN 3230, BS 6755, ISO 5208
Connections: PN10/16 ANSI 150, ISO 705, DIN 2501, BS 4504, ANSI Class 150 ANSI B16.5
Sealing Testing: ISO 5208, API 598

Frequent Interrogation

It is a stainless steel butterfly valve fitted with a PTFE seat for chemical resistance and operated by a Hytork pneumatic actuator. This combination provides reliable quarter-turn automation for isolation and control in demanding industrial applications.

PTFE seats offer excellent resistance to aggressive chemicals, acids, and solvents while remaining non-reactive and contamination-free. This makes them ideal for applications where corrosion resistance and product purity are essential.

Stainless steel delivers high mechanical strength, excellent corrosion resistance, and long service life. When combined with a PTFE seat, it protects the valve both internally and externally in harsh operating environments.

Hytork actuators are known for their robust construction and high torque output. Their scotch-yoke design provides strong breakaway torque, ensuring reliable operation even under high differential pressure.

Yes. The PTFE seat is chemically inert, making these butterfly valves suitable for corrosive fluids, solvents, and aggressive process media commonly found in chemical and industrial applications.

Yes. When fitted with an appropriate positioner, these valves can be used for modulating duties as well as standard open/close isolation.

PTFE seats typically operate up to approximately 180°C, depending on pressure and service conditions. Exact temperature limits should be verified for each application.

Yes. Hytork actuators are available in spring-return configurations, allowing the valve to fail open or fail closed in the event of air or power loss, depending on system requirements.

These valves are widely used in chemical processing, pharmaceuticals, water treatment, food and beverage production, and general industrial flow control applications.

Yes. The valves can be supplied with solenoid valves, limit switchboxes, positioners, air filter regulators, and other automation accessories for full system integration.

Non Toxic FDA Approved PTFE

Wafer Pattern concentric design features a non-toxic PTFE internal seal which also partially covers the outer body of the valve for perfect sealing with counter flanges. Thus avoiding any possibility of cross-contamination and providing a butterfly valve that is extremely resistant to chemicals and solvents with complete insolubility to 300°C.

Engineered Shaft Design

A single piece shaft design brings high strength and stability with direct mount capabilities for actuation assemblies and ensures fluid is again isolated from both the shaft and the body of the butterfly valve. This also eliminates the need for a customised mounting assembly kit which can bring additional costs and time.

Streamlined Butterfly Valve Discs

Greater CV Potential & Less Pipe Space

TTV’s streamlined discs produce a much greater Cv than other butterfly valves on the market resulting in low-pressure drops and reduced energy costs while maintaining a bi-directional zero leakage seal when in the closed position. Low operational torque and reduced friction reduces the costs of gear, pneumatic and electric actuation whilst extending the life of the valve seal. A silicone elasticised gasket facilitates the valve sealing. 

For applications which require abrasion resistance the option of a UHMWPE (Ultra-High-Molecular-Weight-Polyethylene) is available for this particular butterfly valve.

Less space, results in less material, bringing significantly lower costs in the process. As part of Isolation applications, our valves can be fully open or fully closed with quarter turn movement (90 Degrees) of the functioning lever or actuator. When closed, the reliable seal and disc can provide 100% leak tight downstream shutoff and low-pressure loss across the valve when opened through a streamlined, energy saving metallic disc. These types of valves can also be used to regulate flow pressure or temperature through a multi-position lockable lever or 4-20mA 3-15 psi control.

Actuated Butterfly Valves are available in both pneumatic and electric operation and can be beneficial for use in remotely accessed areas, valves that require larger torque figures to operate, timing or synchronisation and reliability. Pneumatically Actuated Butterfly Valves provide the quickest form of operational control for open/close functionality and are available in both double acting and spring return units with either direct/solenoid operation. Spring Return units can be set up in a fail-safe closed mode for critical lines were the Valve will return to the closed position upon the event of power failure through the loaded springs. Fail-safe open Valves are also available upon request.

Hytork Actuator Videos

TopWorx Limit Switch Box

TopWorx Hytork Valve Limit Switch Box available for this product. Keep everything within the Emerson Group of products with a world leading Valve Position Monitor. Safe Area, Explosion Proof, Intrinsically Safe. All available from stock with fitting and calibration to your Hytork Actuator prior to shipping.
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PTFE Seat Wafer Stainless Steel Hytork Actuated Valves