Can the API sealing ring, carbon steel, type BX withstand continuous operation at 1500 bar and +500Â°C without additional cooling or protective measures?

No. The API sealing ring, carbon steel, type BX cannot be assumed safe for continuous operation at 1500 bar and +500Â°C without additional cooling or protective measures. Although the product specification lists a working pressure up to 1500 bar and an operating temperature range to +500Â°C, those ratings indicate the maximum allowable limits under specified test/installation conditions, not guaranteed long-term performance without mitigation. Carbon steel at +500Â°C undergoes loss of strength, accelerated creep and oxidation, and prolonged exposure at the upper temperature limit.especially under extreme pressure.can cause material degradation, embrittlement or seal failure. The ringâs pressure-equalization hole and compatibility with API BX flanges help performance, but do not substitute for system-level measures such as thermal management, protective coatings, material selection for high-temperature service, and appropriate bolting/fastener design. For continuous service at 1500 bar and +500Â°C, consult the manufacturer for validated high-temperature pressure-cycling data, metallurgy/heat-treatment details, and applicable standards; consider alternative high-temperature alloys or active cooling and protective measures to ensure safe long-term operation.

Does the API sealing ring, carbon steel, type BX require special surface treatment to maintain sealing at 1500 bar and +500Â°C?

API sealing ring, carbon steel, type BX: No special surface treatment is normally required beyond standard good machining and corrosion protection practices to maintain sealing at up to 1500 bar and +500Â°C. The ring is designed for these extreme conditions when used with matching API BX flanges/grooves and the pressureâequalization hole. However, for prolonged service at high temperature and pressure, consider the following siteâspecific measures: ensure correct surface finish and dimensional tolerances, use appropriate highâtemperature compatible corrosion inhibitors or coatings if the environment is corrosive, verify material (carbon steel) suitability against oxidation/corrosion at +500Â°C, and follow manufacturer installation torque and inspection intervals.

Is the API sealing ring, carbon steel, type BX compatible with non-API BX flanges or grooves?

No. The API sealing ring, carbon steel, type BX is designed exclusively for use with API BX flanges and grooves and cannot be used with nonâAPI BX flanges or grooves. Its geometry (including the pressureâequalization hole and specific dimensions) and intended sealing function are matched to API BX machining standards. Using it with nonâAPI components risks improper seating, leakage, and failure under the specified high pressures (up to 1500 bar) and temperatures (â40Â°C to +500Â°C).

API sealing ring, carbon steel, type BX

Additional information

BX type steel sealing ring designed for connecting and sealing specially machined flanges with grooves. It features a hole for pressure equalization. This type of ring can be used exclusively with API BX flanges and grooves. Used in connections for high pressures and temperatures. Detailed information on the dimensions of the ring is attached. Material: carbon steel. Working pressure: up to 1500 bar. Operating temperature: from -40°C to +500°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HL-BX-150	BX 150 sealing ring, carbon steel	-	-	In stock	Enquiry
HL-BX-151	Sealing ring type BX 151, carbon steel	-	-	In stock	Enquiry
HL-BX-152	Sealing ring type BX 152, carbon steel	-	-	In stock	Enquiry
HL-BX-153	BX 153 sealing ring, carbon steel	-	-	In stock	Enquiry
HL-BX-154	Sealing ring type BX 154, carbon steel	-	-	In stock	Enquiry
HL-BX-155	Sealing ring type BX 155, carbon steel	-	-	In stock	Enquiry
HL-BX-156	Seal ring type BX 156, carbon steel	-	-	In stock	Enquiry
HL-BX-157	Seal ring type BX 157, carbon steel	-	-	In stock	Enquiry
HL-BX-158	Seal ring type BX 158, carbon steel	-	-	In stock	Enquiry
HL-BX-159	Seal ring type BX 159, carbon steel	-	-	In stock	Enquiry
HL-BX-160	Seal ring type BX 160, carbon steel	-	-	In stock	Enquiry
HL-BX-161	Sealing ring type BX 161, carbon steel	-	-	In stock	Enquiry
HL-BX-162	Sealing ring type BX 162, carbon steel	-	-	In stock	Enquiry
HL-BX-163	Sealing ring type BX 163, carbon steel	-	-	In stock	Enquiry
HL-BX-164	Sealing ring type BX 164, carbon steel	-	-	In stock	Enquiry
HL-BX-165	BX 165 sealing ring, carbon steel	-	-	In stock	Enquiry
HL-BX-166	Seal ring type BX 166, carbon steel	-	-	In stock	Enquiry
HL-BX-167	BX 167 sealing ring, carbon steel	-	-	In stock	Enquiry
HL-BX-168	Sealing ring type BX 168, carbon steel	-	-	In stock	Enquiry
HL-BX-169	BX 169 sealing ring, carbon steel	-	-	In stock	Enquiry
HL-BX-170	BX 170 sealing ring, carbon steel	-	-	In stock	Enquiry
HL-BX-303	Sealing ring type BX 303, carbon steel	-	-	In stock	Enquiry

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BX type steel sealing ring designed for connecting and sealing specially machined flanges with grooves. It features a hole for pressure equalization. This type of ring can be used exclusively with API BX flanges and grooves. Used in connections for high pressures and temperatures. Detailed information on the dimensions of the ring is attached. Material: carbon steel. Working pressure: up to 1500 bar. Operating temperature: from -40°C to +500°C.