Second Generation PTFE Tfm1600 Seat

• Material: PTFE/Filled PTFE/Modified PTFE(Tfm1600)
• Application: Valve
• Type: Static Sealing
• Performance: Temperature
• Shape: Ball Valve Seat
• Standard: Nonstandard
• Model NO.: HDSS0004
• Temperature Range(°f): -75~+500
• Processing Technologies: CNC Precision Machining
• Material Brand: 3mtm Dyneont
• Specification: Customized sizes according to drawing
• Trademark: Hongda
• Origin: China

Product Description

Product Description

TFM™-1600 is second generation PTFE. TFM™-1600 has a lower coefficient of friction that provides better creep resistance than PTFE. TFM™-1600 is ideal for high purity applications such as semi-conductor, and also in lower temperature applications. TFM™-1600 is the standard seat material for industrial valves. TFM™-1600 resists "popcorning" in monomer and polymer services, such as Butadiene because of its lower porosity and permeability compared to PTFE. 

TFM Vs PTFE
Conventional PTFE (polytetrafluoroethylene) has been a very good choice for resilient sealing -- seating material for ball valves based on the proven advantages of this material.

      • Excellent all-round chemical resistance
      • Very wide service temperature ranges
      • Extremely resistant to embitterment or aging
      • Dimensional stability
      • Resistance to stress cracking
      • Excellent lubricating ability
      • Very good non-stick properties

The introduction of a second generation or modified PTFE has in recent years become commercially available.This material has retained all the proven advantages of conventional PTFE but has added significant enhanced properties and valuable new capabilities.The new second generation PTFE produced and marketed by by Dyneon,(3M) as TFM^TM 1600

Advantages of TFM seat
      • Substantially lower deformation under load
      • Less creep
      • Denser polymer structure with fewer voids,less porous surfaces
      • Improved chemical permeation resistance
      • Better resiliency at elevated temperatures
      • Smoother surface finish on machined parts
      • Unfilled TFM has the same resistance to cold flow as convention filled PTFE compounds of 25% glass or carbon fillers
      
Ball valve operational torque with TFM seats is equal or slightly lower than PTFE

Key Features

Temperature Range: -75°F to 500°F
Max Pressure at Room Temperature: 2000 psi
Color: Transparent White

TFM Seat Pressure vs. Temperature

Why choose us

• by keeping a large stock of the semi-finished materials used by our regular customers, we can meet urgent requests and have quick turnaround

• In-house manufacturing of semi-finished rods/tubes for CNC,with multiple tools ensure the best optimization of nominal diameters so as to offer dimensions as close as possible to the finished products to be made,reducing swarf,machining times and related costs.

• In-house CNC machining of all kinds of soft seal materials including seats&inserts,O-rings,back-up rings,piston seals,gasket,bearing... according to customers' drawing.Production facilities are equipped with last generation machinery (CNC milling and turning, automatic and sliding head stock lathes) that work round the clock for high volume production. 

• a wide range of sizes up to a diameter of 650mm,make us the partner of choice for industrial machined parts of high-end OEMs.

• with multiple tools ensure the best optimization of nominal diameters so as to offer dimensions as close as possible to the finished products to be made,reducing swarf,machining times and related costs.

Example of TFM seat in valve


Production facility