The quantity, hose size, liner, braid, cover, protection system, length and fittings must be selected and specified in full.
EITHER by a full, written description. The hose grade can be specified by the code initials e.g. “Bioflex Ultra AS, SS, RC, DRC-300” defines an antistatic PTFE lined hose with an EPDM rubber cover over a SS braid, with a double rubber cover at both ends. The quantity, length and fittings can then be written in - e.g. “4 off x 1” bore Bioflex Ultra, AS, SS, RC, DRC-300 hose x 3.00 metres long. Both ends non-lined ANSI 150# S/S Flanges”.
OR by Part Numbers. Example from above “4 off Part No. 16-BFXU/AS-RC-00-3.00m-12-12, with DRC 300 at both ends”.
Any special requirements relating to the hose construction, or information required on Tags, or Certificates, or special testing of requirements, must be specified in full on the enquiry or purchase order.
There are two types of PTFE liner available, natural (GP) and antistatic (AS) and two types of braid; Grade 316 stainless steel (SS) and polypropylene (PB). Rubber covering and other external protection systems are also available.
A hose grade is specified by using the abbreviations given. For example, Bioflex Ultra AS,PB would describe a hose with an antistatic PTFE liner and a polypropylene braid.
Bioflex Ultra is available with a range of ‘standard’ end fittings, normally supplied hygienically PTFE lined and flared.
The equivalent specification for the different Grades of Stainless Steel are listed below:
|Grade||BS - British Standard||AISI - American Standard or C = Casting Grade||EN - European Norm|
|316L SS||BS 316 S11||AISI 316 L||EN1.4404|
|316C SS||BS 316 C16||CF8M||EN 1.4408|
|304 SS||BS 304 S15||AISI 304||EN 1.4301|
To special order, end fitting components can be made in nonstandard grades of SS such as 1.4435, or other materials such as Hastelloy or Monel.
Bioflex Ultra hose and hose assemblies are only supplied on the basis that the customer has read and accepted the Conditions of Sale. Customers own Conditions of Sale (or equivalent) are not accepted unless an acceptance, signed by a Director of Aflex Hose is supplied.
Bioflex Ultra hose assemblies are made up to the specific lengths required. The hose length is taken as the length from the sealing face at one end of the hose to the same at the other end. The length tolerance is normally +2% / -0%. Closer tolerances are available to special order. (see also Length Calculation)
|Nominal Size of Hose||Minimum Hose Length Between Fittings||Maximum Hose Assembly Length|
|Used Straight||Flexed Through 90°|
|All Grades||TO, KYB Grades||SS, PB RC Grades|
*Listed minimum lengths are for the Bioflex Ultra Hose only, and DO NOT INCLUDE THE LENGTHS OF THE FITTINGS AT EACH END. These must be found from the end fitting pages and added to calculate the minimum length of the hose assembly.**Longer lengths may be available to special order.