BS ISO 6195:2021

What is BS ISO 6195 about?  

BS ISO 6195 is a document on fluid power systems and components. BS ISO 6195 is one of a family of standards covering dimensions and tolerances of reciprocating seal housings. 

BS ISO 6195 specifies dimensions and tolerances of housings for wiper-rings used in reciprocating rod applications for fluid power cylinders. The range of rod diameters is from 4 mm to 450 mm. 

BS ISO 6195 is one of a family of standards covering dimensions and tolerances of reciprocating seal housings. 

BS ISO 6195 is applicable to the following five housing designs: 

• Type A: recessed housings with undercut or separate cover to retain elastomeric wipers 
• Type B: open recessed housings for wipers with integral rigid enforcement that are press-fit in the housing 
• Type C: recessed housings with an undercut to retain elastomeric wipers (these are the preferred housings for double lip wipers without integral rigid enforcement) 
• Type D: recessed housings with an undercut to retain elastomer-energized, plastic-faced wipers 
• Type E: recessed housings with an undercut or separate cover to retain elastomeric wipers (these are the preferred housings to Type A) 

Note: BS ISO 6195 does not specify the style, configurations, materials, or performance ratings for the wiper ring. 

Who is BS ISO 6195 for? 

BS ISO 6195 on fluid power systems and components is useful for: 

• Aerospace organizations 
• Industries working on material handling 
• Earthmoving equipment manufacturers 
• Metalworking industries 
• Automotive industries 

Why should you use BS ISO 6195?  

Fluid power systems and components are implemented on fluids under pressure to generate, control, and transmit power. BS ISO 6195 introduces the systems where power is transmitted and controlled through a fluid (liquid or gas) under pressure within an enclosed circuit.  

BS ISO 6195 provides information on wiper rings which are usually fitted to a hydraulic cylinder gland in conjunction with a rod seal to prevent ingress of contaminants and to thereby protect the seals and bearings within the equipment. 

Implementing BS ISO 6195 on fluid power systems and components ensures that cylinders and motors do the desired work and control components to regulate the system. 

What’s changed since the last update?  

BS ISO 6195:2021 supersedes BS ISO 6195:2013. BS ISO 6195:2021 includes a technical change with respect to BS ISO 6195:2013: 

• Wiper housing sizes for 400 mm and 450 mm rod diameters have been added to Tables 1, 2, 3, 4 and 5