Can UNI-FLEX S pipe clamp with NBR seal and stainless steel (AISI 316Ti, A4-80) be used for gas and fuels at temperatures -20Â°C to +80Â°C and pressures up to 25 bar?

Yes. UNI-FLEX S pipe clamp with NBR seal and stainless steel (AISI 316Ti, A4-80) can be used for gas and fuels within the specified ranges: operating temperature â20Â°C to +80Â°C and maximum operating pressure up to 25 bar, provided the following conditions are met: installation on round steel pipes with the required minimum wall thickness, installation carried out according to the manufacturerâs instructions, and bolts tightened with the specified torque using a torque wrench. Note the PN 16 rating for shipbuilding/marine use implies a 4:1 safety factor and one-time proof testing at 4Ã maximum pressure (clamp not reusable after that test), while the 25 bar industrial limit implies a 1.5:1 safety factor with proof testing at 150% (clamp reusable after test). Ensure chemical compatibility of NBR with the specific fuel or gas in use and follow all applicable standards and local regulations.

Is the UNI-FLEX S pipe clamp with NBR seal and stainless steel (AISI 316Ti, A4-80) suitable for repairing fuel and oil lines under PN16/25 bar conditions?

Yes - the UNI-FLEX S pipe clamp with NBR seal and stainless steel (AISI 316Ti, A4-80) is suitable for repairing fuel and oil lines under PN16/25 bar conditions, provided the following are met: installation on round steel pipes with at least the specified minimum wall thickness; correct installation per manufacturer instructions; tightening to the specified torque with a torque wrench; and operating temperature within -20Â°C to +80Â°C. Note safety constraints: PN16 rating uses a 4:1 test safety factor for shipbuilding (one-time proof test at 4Ã, then not reusable), while the 25 bar maximum applies for static industrial use with 1.5:1 test factor (reusable after 150% test).

Can UNI-FLEX S pipe clamp with NBR seal and stainless steel be used for air and hydrocarbons at PN16/25 bar?

Yes. UNI-FLEX S pipe clamp with NBR seal and stainless steel (AISI 316Ti housing, screws class A4-80, solid pins) is specified for use with air and hydrocarbons (including oils and fuels). Operating limits and conditions to respect: - Sealing material: NBR (approved for many oils, fuels and air; verify compatibility with specific hydrocarbon if unusual or aggressive). - Temperature range: -20Â°C to +80Â°C. Do not exceed. - Nominal/maximum pressures: PN16 (shipbuilding safety factor 4:1, one-time pressure test at 4Ã max. single use after that) and max operating pressure 25 bar for other industrial/static applications (safety factor 1.5:1, tested at 150%. reusable). - These pressure ratings assume installation on round steel pipes with minimum wall thickness, correct installation per instructions, and tightening with the specified torque wrench. Notes: For any specific hydrocarbon (aggressive solvents, aromatics, high-temperature streams) check chemical compatibility with NBR and validate application temperature/pressure. For dynamic, cyclic or high-temperature service, or non-steel pipes, consult manufacturer or technical datasheet before use.

UNI-FLEX S pipe clamp, NBR, stainless steel

Additional information

Material	SS – stainless steel

UNI-FLEX S type pipe clamp designed for connecting and repairing metal and plastic pipes (non-fixed axial connection, flexible – only with rubber seal). Application: water, gas, oils and fuels, other hydrocarbons, air. Material version: AISI 316Ti steel (housing, screws – class A4-80, solid pins). Sealing: NBR rubber. Operating temperature: from -20°C to +80°C. Nominal pressure: PN 16 (pressure class for applications in shipbuilding, marine industry; safety factor 4:1, assuming a positive result of a one-time pressure test at four times the maximum pressure, after which the clamp cannot be reused). Maximum operating pressure: 25 bar (for other industrial applications and static conditions; safety factor 1.5:1, assuming a positive result of testing at 150% of the maximum operating pressure, after which the clamp can be reused multiple times). The pressure values apply to the installation of clamps on round steel pipes with a minimum wall thickness, installation according to the instructions, and tightening with a torque wrench specified on the clamp.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
UN-FLEX-S-021-024-W5-N	UNI-FLEX pipe clamp S 21÷24 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-029-032-W5-N	UNI-FLEX pipe clamp S 29÷32 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-033-036-W5-N	UNI-FLEX pipe clamp S 33÷36 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-036-039-W5-N	UNI-FLEX pipe clamp S 36÷39 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-039-043-W5-N	UNI-FLEX pipe clamp S 39÷43 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-043-047-W5-N	UNI-FLEX pipe clamp S 43÷47.5 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-047-052-W5-N	UNI-FLEX pipe clamp S 47.5÷52.5 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-052-058-W5-N	UNI-FLEX pipe clamp S 52.5÷58 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-058-064-W5-N	UNI-FLEX pipe clamp S 58÷64 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-064-072-W5-N	UNI-FLEX pipe clamp S 64÷72 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-072-080-W5-N	UNI-FLEX pipe clamp S 72÷80 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-080-088-W5-N	UNI-FLEX pipe clamp S 80÷88 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-088-096-W5-N	UNI-FLEX pipe clamp S 88÷96 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-097-105-W5-N	UNI-FLEX pipe clamp S 97÷105 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-104-112-W5-N	UNI-FLEX pipe clamp S 104÷112 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-112-120-W5-N	UNI-FLEX pipe clamp S 112÷120 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-122-130-W5-N	UNI-FLEX pipe clamp S 122÷130 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-129-137-W5-N	UNI-FLEX pipe clamp S 129÷137 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-137-145-W5-N	UNI-FLEX pipe clamp S 137÷145 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-149-157-W5-N	UNI-FLEX pipe clamp S 149÷157 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-157-165-W5-N	UNI-FLEX pipe clamp S 157÷165 mm, W5, NBR	-	-	In stock	Enquiry
UN-FLEX-S-164-172-W5-N	UNI-FLEX pipe clamp S 164÷172 mm, W5, NBR	-	-	In stock	Enquiry

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UNI-FLEX S type pipe clamp designed for connecting and repairing metal and plastic pipes (non-fixed axial connection, flexible – only with rubber seal). Application: water, gas, oils and fuels, other hydrocarbons, air. Material version: AISI 316Ti steel (housing, screws – class A4-80, solid pins). Sealing: NBR rubber. Operating temperature: from -20°C to +80°C. Nominal pressure: PN 16 (pressure class for applications in shipbuilding, marine industry; safety factor 4:1, assuming a positive result of a one-time pressure test at four times the maximum pressure, after which the clamp cannot be reused). Maximum operating pressure: 25 bar (for other industrial applications and static conditions; safety factor 1.5:1, assuming a positive result of testing at 150% of the maximum operating pressure, after which the clamp can be reused multiple times). The pressure values apply to the installation of clamps on round steel pipes with a minimum wall thickness, installation according to the instructions, and tightening with a torque wrench specified on the clamp.