Material selection for hoses in utility stations 2

[JalalAbdollahi]

Dear All,
I am going to prepare a general document for material selection of hoses in utility stations. Due to simplicity of operation, just two types of hoses shall be used: one for low pressure steam and another one for plant water/plant air/nitrogen. After reviewing previous projects, observed that operating temperature/pressure for LPS and plant water/plant air/nitrogen are approximately 6barg/165°C , 7barg/50°C respectively. Further more size and length of hose are 3/4" and 15m respectively. With these data, would you please guide me what materials can be used for these two types of fluid category? and please introduce some vendor if it is possible. At the end it is necessary for me to thanks for your kind considerations.

 

[unclesyd]

Here is generally what is available from several vendors.

http://www.generalrubberplastics.com/gy_hose.html

 

[JalalAbdollahi]

Dear unclesyd,
Thanks for your vendor introducing. would you please tell me what procedure shall be applied step by step to obtain good selecting of hose material for low pressure steam, plant water and plant air?

 

[NozzleTwister]

You need to know:
1) Design Temperatures and Pressures the ambient temperatures.
2) The purpose of the hoses.
3) Required hose end fittings.
4) Sizes required.
5) Quantity required.
6) Length required.
7) Elastomer or braided metallic

Do the hoses come into contact with chemicals they need to resist, abrasion, ultra-violet rays or abuse.

Put together some spec sheets of your requirements, search the net for products that fit your needs, TALK TO THE END USERS ABOUT THEIR REQUIREMENTS IF POSSIBLE, call in some reps and have them bring you complete catalog info and show your their products, put together a list of suitable products and go out for competitive bids or use pre-approved pricing agreements and suppliers.

Good luck,


NozzleTwister
Houston, Texas