Gold Member Since 2011
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Nanjing Fuyuan Chemical Pipeline Equipment Co., Ltd.

Expansion Joint, Ptfe Expansion Joint, Bellows manufacturer / supplier in China, offering Expansion Joints/Bellows/Juntas De Expansion En Caucho, Glass Lined Elbow, Inteligent Integrated Low Voltage Power Capacitor and so on.

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Supplier Homepage Product PTFE bellows(Expansion joints) Expansion Joints/Bellows/Juntas De Expansion En Caucho

Expansion Joints/Bellows/Juntas De Expansion En Caucho

FOB Price: US $1-500 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $1-500/ Piece
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Production Capacity: 10, 0000 PCS/Year
Transport Package: Standard Export Packing
Payment Terms: L/C, T/T, D/P

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Basic Info
  • Model NO.: expansion ptfe
  • Material: PTFE
  • Nominal Diameter(Mm): Dn15-Dn1600
  • Trademark: Fuyuan
  • Origin: China
  • Standard: DIN, ANSI, GB, JIS
  • Connection: Flange
  • Nominal Bore(Inch): Nps1/2-Nps64
  • Specification: Dn15-Dn1600
  • HS Code: 7307990000
Product Description
PTFE Bellows for Vacuum resistance (Negative pressure):
L Operation Pressure: -0.1MPa(-1bar)~1MPa(10bar)
L Nominal Diameter (mm/in. ): DN 15~DN1000 (NPS1/2~NPS39)
L Fatigue frequency: ≥ 10000 times
L Operating temperature: ≤ 200° C

PTFE Bellows (Normal Type)
L Operation Pressure: 0MPa(0bar)~0.2MPa(2bar)
L Nominal Diameter (mm/in. ): DN 15~DN1600 (NPS1/2~NPS64)
L Fatigue frequency: ≥ 5000 times
L Operating temperature: ≤ 200° C

PTFE Bellows with steel shield: TYPE A
L Operation Pressure: 0MPa(-1bar)~0.4MPa(4bar)
L Nominal Diameter (mm/in. ): DN 15~DN1600 (NPS1/2~NPS64)
L Fatigue frequency: ≥ 10000 times
L Operating temperature: ≤ 200° C

PTFE Bellows with stainless steel nets: TYPE B
L Operation Pressure: 0MPa(0bar)~1MPa(10bar)
L Nominal Diameter (mm/in. ): DN 15~DN1600 (NPS1/2~NPS64)
L Fatigue frequency: ≥ 10000 times
L Operating temperature: ≤ 200° C

PTFE Bellows/Expansion Joint
Expansion joints are designed to absorb movements and stress on piping systems, compensate for pipe misalignment, reduce vibration and system noise. They also protect against start-up forces as well as system surges. Further advantages include simple space-saving design and speedy installation.

Typical Applications:
Chemical Engineering-PTFE is employed in all cases where corrosive substances are used and where conventional materials create sealing problems. Glass apparatus is an example. In this type of equipment, PTFE is used for expansion bellows, which are designed to compensate for mechanical and thermal changes, flexible tubing, seals, glandless valves, turbine stirrers, etc.
PTFE bellows stainless steel nets set      
Nominal diameter Convolution Length (mm) Axial (mm) Lateral (mm) Angular (degree) Negative pressure Pressure (Mpa)
DN(mm) NPS(inch)
DN15   1/2 3 70 8 6 20 -0.1 1
DN20   3/4 3 70 10 6 20 -0.1 1
DN25 1      3 80 12 8 20 -0.1 0.8
DN32 1 1/4 3 80 14 12 20 -0.1 0.8
DN40 1 1/2 3 85 17 15 25 -0.1 0.8
DN50 2      3 95 20 20 25 -0.1 0.6
DN65 2 1/2 3 110 22 23 30 -0.1 0.6
DN80 3      3 115 24 24 30 -0.1 0.6
DN100 4      3 120 26 25 30 -0.1 0.6
DN125 5      3 130 29 25 30 -0.1 0.5
DN150 6      3 140 32 20 25 -0.1 0.5
DN200 8      3 150 40 20 25 -0.1 0.5
DN250 10      3 160 40 12 15 -0.1 0.25
DN300 12      3 180 40 12 10 -0.1 0.25
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