Unbrako Pressure Plugs are made to closer tolerances, are generally of higher quality, and almost all have taper threads. When properly used, they seal at pressures to 5000 psi, without a sealing compound (pressure tests are usually at 20,000 psi.) They are often used in hydraulic and pneumatic designs.
- Precision hex socket with maximum depth for positive wrenching at higher seating torques
- Precision thread for positive seal, without a sealing compound
- Flush seating is achieved through closer control of thread forms, sizes and taper-improves safety and appearance
- Heat treated alloy steel for strength and rounded closely controlled for better sealing