Is the LET-LOKÂ® 2-part ball valve with metric connection stainless steel, H-700 suitable for use with corrosive chemicals at 150Â°C and 100 bar?

LET-LOKÂ® 2-part ball valve with metric connection stainless steel, H-700 Format: Based on the provided specification, this valve is constructed from AISI 316 stainless steel (body, ball, stem) with modified PTFE ball seals and PTFE stem seals, an operating temperature range of -42Â°C to +204Â°C, and a maximum working pressure up to 137 bar (depending on temperature). At 150Â°C the valve is within its rated temperature limit (150Â°C < 204Â°C). The working pressure rating allows up to 137 bar; your required 100 bar is below that maximum, so pressure capability is acceptable provided the 137 bar rating applies at 150Â°C per the manufacturerâs temperature/pressure chart. However, chemical compatibility at 150Â°C depends on the specific corrosive chemicals involved. AISI 316 stainless steel and PTFE seals offer good general corrosion resistance, but some aggressive media (e.g., hot chlorides, strong oxidizers, molten alkalis, or certain halogenated solvents) can attack 316 or degrade PTFE at elevated temperatures. The valve is intended for chemical and petrochemical use and is pressure-tested and ISO 15848-1:2006 (E) certified, which supports suitability for many process applications. Conclusion: Pressure and temperature ratings indicate the LET-LOKÂ® 2-part ball valve with metric connection stainless steel, H-700 Format can handle 100 bar at 150Â°C in many cases, but final suitability requires verification of compatibility between the specific corrosive chemical(s) at 150Â°C and AISI 316 plus PTFE (modified PTFE) materials. Consult the manufacturerâs detailed temperature/pressure curves and chemical compatibility data or provide the exact chemicals for a definitive assessment.

Can the LET-LOKÂ® 2-part ball valve with metric connection stainless steel, H-700 be used for steam applications at 180Â°C?

No. The LET-LOKÂ® 2-part ball valve with metric connection stainless steel, H-700 is specified for an operating temperature range of -42Â°C to +204Â°C. Steam at 180Â°C is within the temperature limit, but steam service imposes additional considerations (steam compatibility of modified PTFE seals, accelerated wear/creep, thermal cycling, packing leakage, and pressure/temperature derating). The valve is rated for media of liquids and gases and tested to ISO 15848-1:2006 (E), but manufacturer guidance or application-specific verification is required for saturated or superheated steam at 180Â°C and the intended pressure. Before use for steam at 180Â°C, confirm with the manufacturer that the PTFE seals and valve assembly are approved for continuous steam service at the specific pressure and duty cycle.

Does the LET-LOKÂ® 2-part ball valve with metric connection stainless steel, H-700 support oxygen service at elevated pressures and 120Â°C?

No. the LET-LOKÂ® 2-part ball valve with metric connection stainless steel, H-700 is not specified as suitable for oxygen service at elevated pressures and 120Â°C. Why: Oxygen service requires materials and cleaning procedures that minimize ignition risk (no combustible lubricants, organics or particle contamination) and full compatibility of seals and elastomers with highâpressure O2 and elevated temperature. The H-700âs ball and body are AISI 316 (acceptable for oxygen), but its ball and stem seals are modified PTFE and PTFE and the lever includes PVC. materials and potential residues of organic contaminants can present fire/compatibility hazards in highâpressure oxygen service. The product description does not state oxygen compatibility, oxygen cleaning, or oxygen service certification. Although rated to 137 bar (depending on temperature) and to +204Â°C, absence of explicit oxygen service approval and presence of polymeric components and unspecified cleaning mean it should not be assumed safe for highâpressure O2 at 120Â°C. Recommendation: Consult the manufacturer for an explicit statement on oxygen service, oxygen cleaning options, approved materials and safe operating limits for oxygen at the required pressure and 120Â°C, or select a valve specifically certified for oxygen service.

LET-LOK® 2-part ball valve with metric connection stainless steel, H-700

Q: Can the LET-LOKÂ® 2-part ball valve with metric connection stainless steel, H-700 be used for steam applications at 180Â°C?

No. The LET-LOKÂ® 2-part ball valve with metric connection stainless steel, H-700 is specified for an operating temperature range of -42Â°C to +204Â°C. Steam at 180Â°C is within the temperature limit, but steam service imposes additional considerations (steam compatibility of modified PTFE seals, accelerated wear/creep, thermal cycling, packing leakage, and pressure/temperature derating). The valve is rated for media of liquids and gases and tested to ISO 15848-1:2006 (E), but manufacturer guidance or application-specific verification is required for saturated or superheated steam at 180Â°C and the intended pressure. Before use for steam at 180Â°C, confirm with the manufacturer that the PTFE seals and valve assembly are approved for continuous steam service at the specific pressure and duty cycle.

Q: Does the LET-LOKÂ® 2-part ball valve with metric connection stainless steel, H-700 support oxygen service at elevated pressures and 120Â°C?

No. the LET-LOKÂ® 2-part ball valve with metric connection stainless steel, H-700 is not specified as suitable for oxygen service at elevated pressures and 120Â°C. Why: Oxygen service requires materials and cleaning procedures that minimize ignition risk (no combustible lubricants, organics or particle contamination) and full compatibility of seals and elastomers with highâpressure O2 and elevated temperature. The H-700âs ball and body are AISI 316 (acceptable for oxygen), but its ball and stem seals are modified PTFE and PTFE and the lever includes PVC. materials and potential residues of organic contaminants can present fire/compatibility hazards in highâpressure oxygen service. The product description does not state oxygen compatibility, oxygen cleaning, or oxygen service certification. Although rated to 137 bar (depending on temperature) and to +204Â°C, absence of explicit oxygen service approval and presence of polymeric components and unspecified cleaning mean it should not be assumed safe for highâpressure O2 at 120Â°C. Recommendation: Consult the manufacturer for an explicit statement on oxygen service, oxygen cleaning options, approved materials and safe operating limits for oxygen at the required pressure and 120Â°C, or select a valve specifically certified for oxygen service.

All products, Straight screw connection/

LET-LOK® 2-part ball valve with metric connection stainless steel, H-700

Additional information

Material	SS – stainless steel

Compact, two-piece medium-pressure ball valve designed for demanding general applications. It can be used for precision instrumentation in the chemical, petrochemical, pharmaceutical, energy, and process engineering industries – for liquids and gases. Intended for pipeline installation. The valve features a large size range to ensure sufficiently high flow, tight shut-off (permissible internal leakage through the ball seal 0.1 Ncm³/min), high durability, and low torque. Designed for operation in fully open or fully closed positions. Each valve is pressure tested with nitrogen. Certified according to ISO 15848-1:2006 (E). Body material: AISI 316 steel. Ball and stem material: AISI 316 steel. Lever material: AISI 304 steel, PVC. Ball seal: modified PTFE. Stem seal: PTFE. Operating temperature: from -42°C to +204°C. Working pressure: up to 137 bar (depending on temperature). Connection: metric LET-LOK®.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HM-H700-SS-LM-06-TLD	2-piece ball valve, 2 x LL 6 mm, PTFE seal, SS	5	135	In stock	Enquiry
HM-H700-SS-LM-08-TLD	2-piece ball valve, 2 x LL 8 mm, PTFE seal, SS	6	135	In stock	Enquiry
HM-H700-SS-LM-10-TLD	2-piece ball valve, 2 x LL 10 mm, PTFE seal, SS	10	135	In stock	Enquiry
HM-H700-SS-LM-12-TLD	2-piece ball valve, 2 x LL 12 mm, PTFE sealing, SS	12	135	In stock	Enquiry
HM-H700-SS-LM-14-TLD	2-piece ball valve, 2 x LL 14 mm, PTFE seal, SS	14	135	In stock	Enquiry
HM-H700-SS-LM-15-TLD	2-piece ball valve, 2 x LL 15 mm, PTFE seal, SS	16	135	In stock	Enquiry
HM-H700-SS-LM-18-TLD	2-piece ball valve, 2 x LL 18 mm, PTFE sealing, SS	18	135	In stock	Enquiry
HM-H700-SS-LM-25-TLD	2-piece ball valve, 2 x LL 25 mm, PTFE seal, SS	25	135	In stock	Enquiry

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Compact, two-piece medium-pressure ball valve designed for demanding general applications. It can be used for precision instrumentation in the chemical, petrochemical, pharmaceutical, energy, and process engineering industries – for liquids and gases. Intended for pipeline installation. The valve features a large size range to ensure sufficiently high flow, tight shut-off (permissible internal leakage through the ball seal 0.1 Ncm³/min), high durability, and low torque. Designed for operation in fully open or fully closed positions. Each valve is pressure tested with nitrogen. Certified according to ISO 15848-1:2006 (E). Body material: AISI 316 steel. Ball and stem material: AISI 316 steel. Lever material: AISI 304 steel, PVC. Ball seal: modified PTFE. Stem seal: PTFE. Operating temperature: from -42°C to +204°C. Working pressure: up to 137 bar (depending on temperature). Connection: metric LET-LOK®.