B35-P

Product Name B35-P
Classification Piston Rod Seal
Certification ISO 9001, FDA, RoHS

TvnSeal Engineering Plastics Technology Co., Ltd. is a national high-tech enterprise specializing in the R&D and manufacturing of high-performance sealing materials and special polymer new materials.

Space-saving rod seal with minimal dead volume, compliant for food & pharmaceutical use. OD interference fit eliminates dynamic twisting, widely used as O-ring replacement.

Surface RoughnessRtmaxRa
Sliding Surface≤ 2.5μm≤ 0.05-0.3μm
Groove Bottom≤ 6.3μm≤ 1.6μm
Groove End Face≤ 15μm≤ 3μm
Additional Notes: Support Rate: 50-95%, Cutting Depth 0.5R (based on the reference condition of Cref=0%)
Recommended Dimensions (mm)Maximum Radial Extrusion Gap
dDGRmaxCs*
f8H10+0.2  20 bar100 bar200 bar400 bar
Range (mm)
510d+54.00.42.00.330.180.100.05
1025d+64.50.43.00.330.180.100.05
2550d+85.50.43.50.330.180.100.05
50100d+106.50.44.00.370.230.150.10
100150d+159.50.45.00.460.330.250.18
150300d+2012.50.46.00.540.380.330.25
300500d+2515.00.48.50.610.450.400.33
500700d+3017.50.410.00.670.500.450.40
7001250d+3522.00.413.00.770.500.450.40
12502000d+4027.00.415.00.870.600.500.40
20004000d+6032.00.418.00.970.700.500.40
The extrusion clearance values shown in the table are valid for temperatures under 70℃. Lower clearances shall be used at higher temperatures.

Applications

Chemical Industry

Used in pumps, valves, and piping systems for chemical processing plants.

Pharmaceutical

FDA-compliant seals for drug manufacturing and processing equipment.

Food Processing

Sealing solutions for food and beverage processing machinery.

Oil & Gas

High-pressure seals for oil drilling and refining equipment.

Automotive

Engine and transmission seals for automotive applications.

Aerospace

Precision seals for aerospace and aviation equipment.