PTB-Custom Spring Energized PTFE Seal

PTB-Custom Spring Energized PTFE Seal

Type
PTB (Piston)
Delivery Time
3-7 days
Quality
High-quality
Service
Standard product/Customized product
Brand
DSH
Price
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Quantity Needed:
Pieces
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PTB Spring Energized PTFE Seals make use of a V-shaped spring embedded in a polymer jacket. At installation, the V shape of the spring is compressed, providing sealing energy to the seal jacket ensuring a positive seal. With a linear load curve and excellent deflection range, PTB Spring Energized PTFE Seals are a very versatile product. They are common replacements when rubber u-cups fail due to chemical attack, extreme temperature range, friction concerns and wear issues. Cantilever Spring Seals are best suited for reciprocating applications such as shocks, hydraulic cylinders, pumps, and compressors. The shape of the spring concentrates load on the front of the seal, which makes this design also suitable for use as environmental excluders and for applications requiring scraping of viscous media. As an additional option, the spring cavity area can be filled with silicone for FDA clean-in-place applications. The seals always seem to gravitate toward certain difficult applications which include:

  • Harsh chemicals and solvents.
  • High temperatures up to 260℃.
  • Cryogenic temperatures down to -40℃.
  • Unlubricated applications.
  • Where low friction is required.
  • High pressures up to 450bar.
  • High surface speeds when other seals overheat
  • The most popular PTFE fillers used for PTB spring energized PTFE Seal piston products are carbon fiber, fiberglass, aromatic polyester and graphite. Virgin PTFE is also popular for these products when conditions are mild.

Applications:

  • Compressors • Cryogenics • FDA Clean Grade • Jet Engines • Hydraulic Cylinders • Paint Sprayers.
  • Pressure Washers • Robotics • Steering Cylinders • Valves • Vapor Recovery Systems • Many more.

Markets:

  • Aerospace • Automotive • Chemical Processing • Appliances • Machine Tools • Marine.
  • Medical • Pharmaceutical • Military • Heavy Machinery • Pulp & Paper • Hydraulic.
  • Food & Beverage • Electronic • Oil & Gas • Semiconductor • Plastics.

◆◆ PTFE filled Stainless Steel Spring (Helical spring, cantilever spring-V type, Slant Coil Spring, Elgiloy helical spring

Material description PTFE filled Bronze, PTFE filled carbon fiber and MoS2, PTFE filled Graphite, PTFE filled PI, PTFE filled Ekonol,
PU and so on.
Available Color Black, green, coffee, white, red, blue, gold and so on
Material Strength Piston spring energized seals, low
coefficient of friction, good chemical and heat resistance.
temperature -40~+260℃
speed ≤15m/s
pressure ≤45MPa
Medium Virtually all fluids, chemicals and gases
Used for Standard Heel Groove
PTB-Custom Spring Energized PTFE Seal-detail-01

PTB-Custom Spring Energized PTFE Seal-detail-02

◆◆ SPRING ENERGIZED RADIAL SEALS PTB

PTB-Custom Spring Energized PTFE Seal-detail-03

 pressure E≤0.6mm E≤0.4mm E≤0.2mm
Max Gap E <160bar <250bar <400bar
Order Example for Standard version:
D(mm) d(mm) L(mm) Spring Type Order Number
50 40.6 7.1 400 PTB 50X40.6X7.1-400
Installation Dimension table based on Metric Size (mm)
 D H9  d H9 L+0.2 H Y R1≤
6~12 D-2.9 2.4 2.2 0.4 0.2
14~22 D-4.5 3.6 3.2 0.6 0.2
25~45 D-6.2 4.8 4.3 0.7 0.4
48~120 D-9.4 7.1 6.8 0.8 0.4
125~500 D-12.2 9.5 9.2 0.9 0.4
Order Data
Order Number Bore
H9
Groove
h9
Width
+0.2
Order Number Bore
H9
Groove
h9
Width
+0.2
PTB0060 6 3.1 2.4 PTB0900 90 80.6 7.1
PTB0080 8 5.1 2.4 PTB0950 95 85.6 7.1
PTB0100 10 7.1 2.4 PTB1000 100 90.6 7.1
PTB0120 12 9.1 2.4 PTB1100 110 100.6 7.1
PTB0140 14 9.5 3.6 PTB1150 115 105.6 7.1
PTB0150 15 10.5 3.6 PTB1200 120 110.6 7.1
PTB0160 16 11.5 3.6 PTB1250 125 112.8 9.5
PTB0180 18 13.5 3.6 PTB1300 130 117.8 9.5
PTB0200 20 15.5 3.6 PTB1350 135 122.8 9.5
PTB0220 22 17.5 3.6 PTB1400 140 127.8 9.5
PTB0250 25 18.8 4.8 PTB1500 150 137.8 9.5
PTB0280 28 21.8 4.8 PTB1600 160 147.8 9.5
PTB0300 30 23.8 4.8 PTB1700 170 157.8 9.5
PTB0320 32 25.8 4.8 PTB1800 180 167.8 9.5
PTB0350 35 28.8 4.8 PTB1900 190 177.8 9.5
PTB0400 40 33.8 4.8 PTB2000 200 187.8 9.5
PTB0420 42 35.8 4.8 PTB2100 210 197.8 9.5
PTB0450 45 38.8 4.8 PTB2200 220 207.8 9.5
PTB0480 48 38.6 7.1 PTB2300 230 217.8 9.5
PTB0500 50 40.6 7.1 PTB2400 240 227.8 9.5
PTB0520 52 42.6 7.1 PTB2500 250 237.8 9.5
PTB0550 55 45.6 7.1 PTB2800 280 267.8 9.5
PTB0560 56 46.6 7.1 PTB3000 300 287.8 9.5
PTB0600 60 50.6 7.1 PTB3200 320 307.8 9.5
PTB0630 63 53.6 7.1 PTB0350 350 337.8 9.5
PTB0650 65 55.6 7.1 PTB4000 400 387.8 9.5
PTB0700 70 60.6 7.1 PTB4200 420 407.8 9.5
PTB0750 75 65.6 7.1 PTB4500 450 437.8 9.5
PTB0800 80 70.6 7.1 PTB4800 480 467.8 9.5
PTB0850 85 75.6 7.1 PTB5000 500 487.8 9.5
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