DEVELOPMENT OF SEALS FOR HIGH PRESSURE AIR SYSTEMS IN SUBMARINES
Abstract
Studies were conducted to develop a formulation for rubber seals to be used in the high pressure air systems of FBM submarines. The best stock which the Laboratory had developed previously for this service was a Viton A-HV stock identified as Compound A. An objectionable feature of this stock was its tendency to backrind when molding. A new Viton A-HV stock (377-89) was developed which does not backrind and which is also suitable for use in seals for high pressure gas service. Four sets of O-rings submitted by the Parker Seal Company were tested for resistance to swelling caused by rapid release of 5000 psi air pressure. Two of the sets of O-rings were fairly resistant to swelling, but were not equal to Compound A or 377-89 in this regard. O-rings made by Linear Incorporated and conforming to Classes A and B of specification MIL-P-5516B were tested for swelling. Both the Class A (88 shore) and Class B (68 Shore) O-rings were seriously swollen, and the Class B )O-rings exhibited many small blisters after decompression. The Class A O-rings were considered to be of marginal utility in high pressure air systems. The Class B O-rings were considered to be unsuitable for this purpose. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 31, 1961
- Accession Number
- AD0260920
Entities
People
- R.d. Ford