Inox-val 2 Piece Ball Valves - 705000 | Valpres

Valpres 705000 Ball Valve

The Valpres 705000 is a two-piece ball valve manufactured from ASTM A352 LCB cast steel for threaded process lines. It is intended for ISO 7 Rp female threaded connections in industrial liquid and gas services where PN64 pressure rating and low-temperature carbon steel construction are required.

Technical Data

• Sizes: 1/4” to 2”
• Pressure rating: PN64
• Temperature range: -20°C to +160°C
• Vacuum service: down to 10⁻² torr
• Body and end connection: ASTM A352 LCB
• Ball: ASTM A479 TP304 / ASTM A351 CF8
• Stem: ASTM A479 TP304 / 17-4PH
• Seats and primary seals: PTFE
• O-ring: FKM
• Thread standard: ISO 7 Rp
• Suitable for methane gas service, subject to installation and operating conditions

Suitable Media and Operating Conditions

The valve may be selected for natural gas, methane, compressed air, water, fuels and compatible industrial fluids. Final selection should confirm chemical compatibility with LCB body material, PTFE seats and FKM elastomers, especially where aromatics, oxygenated fuels, hot water or cyclic temperature service are present.

Standards, Certifications and Variants

• Standard execution for PN64 threaded isolation service
• SIL 3 execution available where functional safety documentation is required
• TÜV execution available for specified applications
• ATEX and fire-safe execution available on request for hazardous areas or fire-risk duties

Actuation and Control Use

The 705000 is typically used as a manual on/off isolation valve. For automated isolation, verify actuator mounting arrangement, torque requirement, cycle frequency, fail position and hazardous-area classification before selecting pneumatic or electric actuation.

Sealing and Leakage Considerations

PTFE seats provide low operating torque and tight shut-off in clean fluids and gases. FKM O-rings should be checked against media chemistry and temperature. For dirty fluids, crystallising service or frequent cycling, seat wear, stem leakage and maintenance access should be considered during valve selection.

Typical Industrial Applications

• Natural gas and methane distribution skids
• Compressed-air headers and equipment isolation
• Fuel oil and compatible hydrocarbon lines
• Water and utility services within the stated temperature range
• Process package units requiring threaded PN64 shut-off valves

Selection Logic

Select the 705000 when a threaded PN64 ball valve with ASTM A352 LCB body construction is required. Check design pressure, minimum and maximum temperature, thread type, flow direction requirements, actuator needs, fugitive emission expectations and whether ATEX, fire-safe, TÜV or SIL documentation is required.

FAQ

Can it be used for steam? Steam service should not be assumed from the pressure rating alone. Confirm seat, elastomer and temperature suitability before specifying.

Is it suitable for gas isolation? Yes, it is suitable for methane and natural gas when pressure, temperature, certification and installation requirements are satisfied.

When should a certified variant be specified? Use SIL, TÜV, ATEX or fire-safe variants when required by the safety instrumented function, area classification, insurance specification or plant standard.