Performance

High-Performance Sealing for Demanding Applications

From hydraulic and pneumatic systems to automotive, aerospace, industrial, and machine-tool applications, EIS products are engineered for reliable sealing in demanding environments. Explore performance guidelines for EIS sealing plugs, including working and proof pressure data across multiple plug series, sizes, and base materials.

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Pressure Performance

EIS-1 — Case Hardening Steel Sleeve
Base Metal 3 mm 4 mm 5 mm 6 mm 7 mm 8 mm 9 mm 10 mm 12 mm 14 mm 16 mm 18 mm 20 mm 22 mm
1 5000 psi working pressure
16000 psi proof pressure 		4000 psi working pressure
13000 psi proof pressure
2
3
4
5
6 4500 psi working pressure
14500 psi proof pressure 		3500 psi working pressure
11500 psi proof pressure
7
EIS-3 — 300 Series Stainless Steel Sleeve
Base Metal 3 mm 4 mm 5 mm 6 mm 7 mm 8 mm 9 mm 10 mm 12 mm 14 mm 16 mm 18 mm 20 mm 22 mm
1 6500 psi working pressure
20000 psi proof pressure 		5000 psi working pressure
16500 psi proof pressure
2
3
4
5
6 5500 psi working pressure
17500 psi proof pressure 		4000 psi working pressure
13000 psi proof pressure
7
EIS-5 — 2024-T4 Aluminum Sleeve
Base Metal 3 mm 4 mm 5 mm 6 mm 7 mm 8 mm 9 mm 10 mm 12 mm 14 mm 16 mm 18 mm 20 mm 22 mm
1 3000 psi working pressure
10000 psi proof pressure 		2500 psi working pressure
8000 psi proof pressure
2
3
4
5
6 2000 psi working pressure
7500 psi proof pressure 		1500 psi working pressure
5000 psi proof pressure
7
RS Series
Base Metal 4 mm 5 mm 6 mm 7 mm 8 mm 9 mm 10 mm
1 7000 psi working pressure
23000 psi proof pressure
2
3
4
5
6 6500 psi working pressure
20000 psi proof pressure
7
Download EIS Performance PDF
EIS-1RST4 — Case Hardening Steel Sleeve
Base Metal 3 mm 4 mm 5 mm 6 mm 7 mm 8 mm 9 mm 10 mm 12 mm 14 mm 16 mm 18 mm 20 mm 22 mm
1 7000 psi working pressure
23000 psi proof pressure 		5500 psi working pressure
18000 psi proof pressure
2
3
4
5
6 6500 psi working pressure
20000 psi proof pressure 		5000 psi working pressure
16000 psi proof pressure
7
EIS-3RST4 — 300 Series Stainless Steel Sleeve
Base Metal 3 mm 4 mm 5 mm 6 mm 7 mm 8 mm 9 mm 10 mm 12 mm 14 mm 16 mm 18 mm 20 mm 22 mm
1 7000 psi working pressure
23000 psi proof pressure 		5500 psi working pressure
18000 psi proof pressure
2
3
4
5
6 6500 psi working pressure
20000 psi proof pressure 		5000 psi working pressure
16000 psi proof pressure
7
Download RST Performance PDF
EIS-1LRST4 — Case Hardening Steel Sleeve
Base Metal 3 mm 4 mm 5 mm 6 mm 7 mm 8 mm 9 mm 10 mm 12 mm 14 mm 16 mm 18 mm 20 mm 22 mm
1 7000 psi working pressure
23000 psi proof pressure 		5500 psi working pressure
18000 psi proof pressure
2
3
4
5
6 6500 psi working pressure
20000 psi proof pressure 		5000 psi working pressure
16000 psi proof pressure
7
EIS-3LRST4 — 300 Series Stainless Steel Sleeve
Base Metal 3 mm 4 mm 5 mm 6 mm 7 mm 8 mm 9 mm 10 mm 12 mm 14 mm 16 mm 18 mm 20 mm 22 mm
1 7000 psi working pressure
23000 psi proof pressure 		5500 psi working pressure
18000 psi proof pressure
2
3
4
5
6 6500 psi working pressure
20000 psi proof pressure 		5000 psi working pressure
16000 psi proof pressure
7
EIS-5LRST5 — 2024-T4 Aluminum Sleeve
Base Metal 3 mm 4 mm 5 mm 6 mm 7 mm 8 mm 9 mm 10 mm 12 mm 14 mm 16 mm 18 mm 20 mm 22 mm
1 3000 psi working pressure
10000 psi proof pressure 		2500 psi working pressure
8000 psi proof pressure
2
3
4
5
6 2000 psi working pressure
7500 psi proof pressure 		1500 psi working pressure
5000 psi proof pressure
7
Download LRST Performance PDF

Understanding Base Metal Ratings

Base Metal Reference
Base Metal Material
1 SAE 1144
2 SAE 10L15
3 ASTM A48 Cast Iron
4 ASTM A356 Ductile Iron
5 2024-T4
6 6061-T6
7 356-T6 Cast Aluminum