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Spring Energized Seals
Sealing ring: F-PTFE
Spring: stainless steel
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Application Range
Spring energized seals for holes is a kind of sealing used for reciprocating motion of internal sealing.This kind of sealing can be applicable for poor working conditions and can also be adapted to the requirements of certain special mediums. JPVA sealing is the recommended sealing to use for the requirement of no crawling, chemical resistance and resistance of most mediums, such as valve, pump, separator, brake and batching apparatus.
Please refer to the standards of PVA series of Trelleborg Company and JK series of Parker Company when designing and selecting.
Features
Can be used for reciprocating and rotating movement
Small friction coefficient, wear-resistance and stable dimensions
Superior corrosion resistance and good dimension stability
Not contaminate food, medicine and liquid medicament
Unlimited storage period
Can be adapted to the vast majority of fluid and chemicals
No crawling for precise control
Able to bear sharp temperature changes
Can be disinfected
Working Conditions
| Speed | Pressure Range | Temperature Range | Media | AvailableDiameter Range |
| 15m/s | 0~45MPa | -55℃ +260℃ | All liquids, chemicals and gas | 5-1500mm |
Installation dimension
| CylinderDiameter | GrooveDiameter | Groove Width | Radius | Height of SeamAllowance | Maximum Radial Clearance S | |||
| DH9 | d h9 | L+0.2 | r1 | h | 2 MPa | 10MPa | 20 MPa | 40 Mpa |
| 6.0-19.9 | D-2.9 | 2.4 | 0.4 | 0.4 | 0.20 | 0.10 | 0.08 | 0.05 |
| 14.0-24.9 | D-4.5 | 3.6 | 0.4 | 0.6 | 0.25 | 0.15 | 0.10 | 0.07 |
| 25.0-45.9 | D-6.2 | 4.8 | 0.6 | 0.7 | 0.35 | 0.20 | 0.15 | 0.08 |
| 46.0-124.9 | D-9.4 | 7.1 | 0.8 | 0.8 | 0.50 | 0.25 | 0.20 | 0.10 |
| 125.0-999.9 | D-12.2 | 9.5 | 0.8 | 0.9 | 0.60 | 0.30 | 0.25 | 0.12 |
Specification Table
| Order No. | Cylinder Diameter | Groove Diameter | Groove Width |
| dh9 | DH9 | L+0.2 | |
| MAIS-29-6 | 6 | 3.1 | 2.4 |
| MAIS-29-8 | 8 | 5.1 | 2.4 |
| MAIS-29-10 | 10 | 7.1 | 2.4 |
| MAIS-29-12 | 12 | 9.1 | 2.4 |
| MAIS-29-14 | 14 | 9.5 | 3.6 |
| MAIS-29-15 | 15 | 10.5 | 3.6 |
| MAIS-29-16 | 16 | 11.5 | 3.6 |
| MAIS-29-18 | 18 | 13.5 | 3.6 |
| MAIS-29-20 | 20 | 15.5 | 3.6 |
| MAIS-29-22 | 22 | 17.5 | 3.6 |
| MAIS-29-25 | 25 | 18.8 | 4.8 |
| MAIS-29-28 | 28 | 21.8 | 4.8 |
| MAIS-29-30 | 30 | 23.8 | 4.8 |
| MAIS-29-32 | 32 | 25.8 | 4.8 |
| MAIS-29-35 | 35 | 28.8 | 4.8 |
| MAIS-29-40 | 40 | 33.8 | 4.8 |
| MAIS-29-42 | 42 | 35.8 | 4.8 |
| MAIS-29-45 | 45 | 38.8 | 4.8 |
| MAIS-29-48 | 48 | 38.6 | 7.1 |
| MAIS-29-50 | 50 | 40.6 | 7.1 |
| MAIS-29-52 | 52 | 42.6 | 7.1 |
| MAIS-29-55 | 55 | 45.6 | 7.1 |
| MAIS-29-56 | 56 | 46.6 | 7.1 |
| MAIS-29-60 | 60 | 50.6 | 7.1 |
| MAIS-29-63 | 63 | 53.6 | 7.1 |
| MAIS-29-65 | 65 | 55.6 | 7.1 |
| MAIS-29-70 | 70 | 60.6 | 7.1 |
| MAIS-29-75 | 75 | 65.6 | 7.1 |
| MAIS-29-80 | 80 | 70.6 | 7.1 |
| MAIS-29-85 | 85 | 75.6 | 7.1 |
| Order No. | Cylinder Diameter | Groove Diameter | Groove Width |
| dh9 | DH9 | L+0.2 | |
| MAIS-29-90 | 90 | 80.6 | 7.1 |
| MAIS-29-95 | 95 | 85.6 | 7.1 |
| MAIS-29-100 | 100 | 90.6 | 7.1 |
| MAIS-29-110 | 10 | 100.6 | 7.1 |
| MAIS-29-115 | 115 | 105.6 | 7.1 |
| MAIS-29-120 | 120 | 110.6 | 7.1 |
| MAIS-29-125 | 125 | 112.8 | 9.5 |
| MAIS-29-130 | 130 | 117.8 | 9.5 |
| MAIS-29-135 | 135 | 122.8 | 9.5 |
| MAIS-29-140 | 140 | 127.8 | 9.5 |
| MAIS-29-150 | 150 | 137.8 | 9.5 |
| MAIS-29-160 | 160 | 147.8 | 9.5 |
| MAIS-29-170 | 170 | 157.8 | 9.5 |
| MAIS-29-180 | 180 | 167.8 | 9.5 |
| MAIS-29-190 | 190 | 177.8 | 9.5 |
| MAIS-29-200 | 200 | 187.8 | 9.5 |
| MAIS-29-210 | 210 | 197.8 | 9.5 |
| MAIS-29-220 | 220 | 207.8 | 9.5 |
| MAIS-29-230 | 230 | 217.8 | 9.5 |
| MAIS-29-240 | 240 | 227.8 | 9.5 |
| MAIS-29-250 | 250 | 237.8 | 9.5 |
| MAIS-29-280 | 280 | 267.8 | 9.5 |
| MAIS-29-300 | 300 | 287.8 | 9.5 |
| MAIS-29-320 | 320 | 307.8 | 9.5 |
| MAIS-29-350 | 350 | 337.8 | 9.5 |
| MAIS-29-400 | 400 | 387.8 | 9.5 |
| MAIS-29-420 | 420 | 407.8 | 9.5 |
| MAIS-29-450 | 450 | 437.8 | 9.5 |
| MAIS-29-480 | 480 | 467.8 | 9.5 |
| MAIS-29-500 | 500 | 487.8 | 9.5 |
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