Stainless Steel 316L JIS Flange Formed Bellows

• Standard: DIN, ANSI, GB, JIS, BSW, ISO
• Material: Stainless Steel
• Connection: Welding
• Surface Treatment: Phosphide
• Head Type: Round
• Working Pressure: Vacuum - Atmospheric Pressure
• Model NO.: OKFS JIS
• Allowable Leak Rate: 5*10-8 PA*M3/S or Less
• Production Name: Formed Bellow
• Standard Length: 250, 500, 750, 1000, 1500, 2000 mm
• Overall Length: Max.3000 mm
• Selection: Soft or Hard
• Connection Type: ISO, JIS, Conflat Flange, Pipe End
• Packing: Stiandard Carton Box
• Net Weight: 0.15-40 Kg/M
• Application: Construction, Chemical, Industrial, HVAC, Solar
• Transport Package: Carton Box
• Trademark: VACFLEX
• Origin: Jiangsu
• HS Code: 73079900
• Production Capacity: 100000 Pieces / Year

Product Description

PRECISION FROMED BELLOWS
Precision Formed Bellows are used in the automotive industry as high-pressure resistant and flexible seals. Applications such as gasoline injectors or pressure sensor glow plugs require a tolerance of pulsating pressures of approx. 300 bar on a permanent basis. Bellows with significantly increased pressure resistance, e.g. for a direct needle seal of diesel injectors, are also available.
Precision bellows can also be used as highly flexible seals. These precision bellows are usually used in modern petrol pumps, pressure accumulators or pressure attenuators.
Precision Formed bellows are developed especially for specific operating conditions. Development services also include the mathematical verification of temperature and pressure resistance as well as service life, and a validation and re-qualification under near-application conditions.

Usage Range
The application fields of metal bellows are diverse. Wherever pressure and temperature resistance, tightness as well as flexibility are required, they are used. Aging resistance, corrosion resistance and torsional rigidity are also among their characteristics. The wide application of components ranges from valve and power plant construction, solar technology up to engine technology.
As pressure and temperature-resistant seals for valve shafts in fittings
As vacuum switching bellows in medium-voltage switchgear
As flexible seals in pumps and pressure accumulators
As flexible as well as pressure- and temperature-resistant sealing element in modern gasoline injectors and glow plugs
As mechanical shaft couplings
As tight spring element in floating ring seals
As tight and mechanically tension-free duct through container walls.

Metal bellows are also used in vacuum technology as flexible sealing elements.
The main areas of application include stem seals in vacuum valves as well as the sealing of vacuum switches.

Features
Maximum working pressure up to 3000 psig (207 bar).
Working temperature from -325ºF to +975ºF (-200 ºC to + 600 ºC)
Pressure Rating:
Hose sizes from DN25 to DN100
The remarkably smooth inner surface is hardly covered with particles and generates almost no particles. 
Products exposed to precision cleaning in clean room
Standard and customized length assembly

Specifications

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