Is the DOWTY inch metal-rubber gasket, carbon steel, NBR, type UDB suitable for high-pressure hydraulic connections and what is its maximum operating pressure?

Yes. The DOWTY inch metal-rubber gasket, carbon steel, NBR, type UDB Format is designed specifically for high-pressure hydraulic connections. Constructed with a carbon steel washer for mechanical strength and an NBR (nitrile rubber) sealing element, this metal-rubber type gasket combines a rigid metal support with an elastomeric seal to maintain reliability under elevated pressures typical of hydraulic systems. Maximum operating pressure depends on specific gasket size, joint configuration and flange type, but DOWTY UDB Format metal-rubber gaskets of this design are commonly rated for high-pressure hydraulic service up to approximately 700â3,500 bar (10,000â50,000 psi) depending on the exact product variant and application conditions. For precise maximum working pressure for a given size and installation, consult the DOWTY product datasheet or manufacturerâs pressure ratings for the exact DOWTY inch metal-rubber gasket, carbon steel, NBR, type UDB Format.

Can the DOWTY inch metal-rubber gasket, carbon steel, NBR, type UDB withstand temperatures and fluids common in high-pressure hydraulic systems?

DOWTY inch metal-rubber gasket, carbon steel, NBR, type UDB Format is suitable for many high-pressure hydraulic applications but with important limits. Carbon steel washer provides mechanical strength; NBR (nitrile) sealing offers good resistance to mineral hydraulic oils and typical pressures in high-pressure fittings. However NBR has limited temperature range (typically about -30Â°C to +100Â°C, short-term to ~120Â°C) and poorer resistance to aggressive fluids (strong acids, ketones, esters, phosphate esters, some fire-resistant fluids). For systems operating within NBR temperature limits and using conventional mineral hydraulic oils, the gasket is appropriate. For sustained higher temperatures or unusual/aggressive fluids, select a different elastomer (e.g. FKM/EPDM) or a gasket specified for those conditions.

How should the DOWTY inch metal-rubber gasket, carbon steel, NBR, type UDB be installed to ensure a reliable high-pressure seal?

To ensure a reliable highâpressure seal with the DOWTY inch metal-rubber gasket, carbon steel, NBR, type UDB, follow these installation steps precisely: 1. Inspect components - Verify gasket, flange faces, bolts and ports are clean, undamaged and free of burrs, rust, oil or debris. - Check gasket dimensions match flange bore, bolt circle and thickness specifications. 2. Prepare flange faces - Ensure flange faces are flat, parallel and free of deep scratches or gouges. Light tooling marks acceptable; heavy damage must be repaired or flange replaced. - Remove sharp edges from the flange bore to avoid cutting the NBR. 3. Positioning the gasket - Place the gasket concentrically in the flange recess or bore so the metal washer sits against the flange face and the NBR sealing lip is aligned with the pipe bore. - Ensure any orientation marks are followed; gasket must not be twisted or folded. 4. Bolt selection and lubrication - Use bolts of the correct grade and length specified for the connection. Replace any corroded or stretched bolts. - Lubricate threads and bearing surfaces with an appropriate antiâseize or assembly lubricant to achieve even torqueing. 5. Torque sequence and values - Tighten bolts in a star or cross pattern to compress the gasket uniformly. - Use calibrated torque wrenches and the torque values recommended by the flange/gasket manufacturer or engineering specification for the joint; do not exceed gasket maximum torque. - Tighten in at least three increments (e.g., 30%, 60%, 100% of final torque), allowing gasket relaxation between steps. 6. Final checks - After reaching final torque, allow system to stabilize, then reâcheck and retorque bolts if required by procedure. - Perform a controlled pressure test (hydrostatic or pneumatic as specified) at the prescribed test pressure and inspect for leaks. 7. Operational considerations - Avoid excessive flange face gap or misalignmentâuse appropriate alignment tools or shims if necessary. - Protect NBR from prolonged exposure to incompatible fluids or elevated temperatures beyond its rating. - Replace the gasket after disassembly; do not reuse. Following these steps will maximize the DOWTY inch metal-rubber gasket, carbon steel, NBR, type UDB Format performance and maintain a reliable highâpressure seal.

DOWTY inch metal-rubber gasket, carbon steel, NBR, type UDB

All products, General purpose seals/

Additional information

Maximum operating temperature [°C]	100
Minimum operating temperature [°C]	-30

DOWTY metal-rubber gasket, inch, for high-pressure connections. Material: washer – carbon steel, sealing – NBR.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
TI-UDB-02	Dowty gasket 1/8"	-	-	In stock	Enquiry
TI-UDB-04	Dowty gasket 1/4"	-	-	In stock	Enquiry
TI-UDB-06	Dowty seal 3/8"	-	-	In stock	Enquiry
TI-UDB-08	Dowty gasket 1/2"	-	-	In stock	Enquiry
TI-UDB-10	Dowty seal 5/8"	-	-	In stock	Enquiry
TI-UDB-12	Dowty gasket 3/4"	-	-	In stock	Enquiry
TI-UDB-16	Dowty seal 1"	-	-	In stock	Enquiry
TI-UDB-20	Dowty gasket 1.1/4"	-	-	In stock	Enquiry
TI-UDB-24	Dowty gasket 1.1/2"	-	-	In stock	Enquiry
TI-UDB-32	Dowty seal 2"	-	-	In stock	Enquiry