Teflon Seated

General

Sizes: 1.5” -24.0”
Temperature Range: -4F-400F (-20C – 204C)
Pressure Rating: 150 psig, 230 psig

Description:

Value Valves and BVC offers 2 types of Teflon seated butterfly valves. Each has it own distinct applications and features and benefits.

The Reliant VF7 Brand butterfly valve features:

• Teflon seat with resilient backup, standard is EPDM, optional is Buna N, Viton or Silicone
• Phenolic Backed Cartridge seat design for maximum cycle life
• 316 Stainless Steel Disc with no pins in flow stream
• 316 Stainless Steel Disc with .5mm Teflon spray coating
• 316 SS Stem with internal disc engagement
• Absolute Stem Retention via bolted on plate recessed in top mounting plate and bolted to body casting
• Ductile Iron Epoxy coated body ASTM A-536-65-45-12
• 3-PTFE over Fiberglass stem bushings
• True ISO-5211 top mounting pad AND stem

The Value Valve VF7/ VO7 Brand Butterfly Valve Features

• Two Piece Split Body is standard Ductile Iron with available Carbon Steel and Stainless Steel
• Solid Teflon boot seat with a Silicone Seat energizer
• Solid Teflon encapsulated Disc has a minimum 1/8” (3MM) of pure virgin PTFE over a Stainless Steel core
• Belleville springs top and bottom of seat assures constantly energized stem seal aligned with PTFE bearings
• True ISO-5211 mounting Pad AND stem

Operators include Top Trigger, Bottom Trigger 10 position or flip the notch plate over for infinite position.  Iron Gears and Stainless-Steel gears Aluminum or Stainless Steel Pneumatic Actuators, Aluminum or 316 Stainless Steel Electric actuators, all handles are lockable and gears are lockable with locking attachment.

Specifications:

• End Connections: 125/150 ANSI, Wafer, Lug
• Mounting: ISO-5211(Fits all ISO-5211 Operators)
• Design: ISO-5208
• Face to Face: API-609,,ISO-5752
• Marking: MSS-SP-25
• HVAC
• Food Service
• Petrochemical
• OEM
• Fire Control
• Seawater
• Flue Gas
• Chemical

Superior Chemical Resistance

Teflon seated butterfly valves are engineered for environments where chemical compatibility is important. The PTFE seat and encapsulated disc design provide exceptional resistance to corrosive media, making them ideal for petrochemical, seawater, and flue gas applications.

Extended Cycle Life

With features such as phenolic backed cartridge seats and Belleville spring-energized seals, these valves are built for long service life. The design ensures consistent sealing performance across thousands of cycles, reducing maintenance costs and downtime.

Flexible Operator Options

From manual levers to pneumatic and electric actuators, Teflon seated valves can be configured to match any process requirement. Lockable handles and gear operators add safety and control, ensuring reliable operation in demanding installations.

Industry Versatility

These valves are trusted across HVAC, food service, OEM, and chemical industries. Their ability to handle a wide range of temperatures and pressures makes them a versatile solution for both industrial and commercial applications.

FAQ

What Makes Teflon Seated Valves Different?

They use PTFE seats and encapsulated discs for superior chemical resistance and long service life.

Can Teflon Seated Valves Be Used in Food Service Applications?

Yes. With FDA-approved seat options, they are suitable for food and beverage processing environments.

How Do These Valves Reduce Maintenance Costs?

Durable seat designs and spring-energized seals extend cycle life, minimizing the need for frequent servicing.

What Operator Options Are Available?

Manual, gear, pneumatic, and electric actuators are available, all with lockable configurations for added safety.