851 WV Packing

 

SEAL INFORMATION
MATERIAL FABRIC REINFORCED RUBBER
AND BUNA-N
TEMPERATURE RANGE -40° TO +250° F
PRESSURE RANGE SEE CHART BELOW
SPEED 1.5 FT/SEC
PART NUMBER (Prefix) - (ID) - (OD)

If your design is of medium to high pressure it is recommended that you utilize fabric reinforced rings. The following is a guide to pressure rating of multiple rings, including flat bottom rings.

PRESSURE RATING OF MULTIPLE RINGS
PRESSURE P.S.I. NUMBER OF RINGS
250 - 500 3
500 - 2,000 4
2,000 - 5,000 5
5,000 - 8,000 6

A homogeneous ring may be also used for sealing at low pressure. Do not include the homogeneous ring in calculating pressure rating. Due to the different material, it is difficult to rate this type of ring. If you wish to use all homogeneous rings, tests should be conducted to verify design stability.

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