Inox-val 2 Piece Ball Valves - 7003 Series | Valpres

Valpres Inox-Val 7003 Stainless Steel Ball Valve

The Valpres Inox-Val 7003 is a 2-piece stainless steel threaded ball valve for isolation service on small-bore process and utility lines. The body is ASTM A351 CF8M, suitable for many water, air, gas and chemically compatible fluid duties. Nominal pressure rating is PN64.

Technical Data

• Sizes: 1/2” to 2”
• Temperature range: -20°C to +160°C
• Vacuum service: down to 10⁻² torr
• Body, end connection and ball: ASTM A351 CF8M
• Anti-static stem: ASTM A479 TP316
• Ball seats: virgin PTFE
• Body seat and stem seat: PTFE
• Anti-friction ring: TFM
• O-rings: FKM
• Handle: ASTM A351 CF8
• Connections: NPT or ISO 7 Rp, depending on version

Variants and Selection

The range includes codes 700313 and 700328. Both use the same base metallurgy and PN64 pressure class. Selection is mainly based on thread standard, dimensional constraints and site piping specification.

• 700313: threaded version for installations requiring one connection standard as defined in the project valve schedule.
• 700328: alternative threaded version for the corresponding NPT or ISO 7 Rp requirement.

Suitable Media

• Water and treated water
• Compressed air and neutral gases
• Utility and auxiliary process lines
• Chemical fluids compatible with CF8M stainless steel, PTFE, TFM and FKM

Operational Considerations

The 7003 is intended for on/off isolation, not throttling control. For services involving solvents, hydrocarbons, oxidising chemicals or elevated temperature, check FKM compatibility and PTFE seat limits before procurement. Leakage risk should be assessed against pressure, temperature cycling and frequency of operation.

Standards and Certifications

• Material references: ASTM A351 CF8M and ASTM A479 TP316
• Thread standards: NPT and ISO 7 Rp
• Pressure class: PN64
• ATEX or SIL 3 documentation should be verified when required by the plant classification or safety instrumented function.

Actuation and Maintenance

The standard configuration is manual lever operation. If remote operation is required, confirm actuator mounting compatibility, torque values, operating pressure and fail-safe philosophy before specifying pneumatic or electric actuation.

Routine maintenance checks should include stem leakage, seat tightness, handle condition and thread integrity. Seal material replacement must match the original PTFE, TFM and FKM configuration unless a compatibility review justifies an alternative.

FAQ

Can it be used for steam?
Only after checking pressure, temperature and elastomer compatibility. The FKM O-rings may limit suitability in some steam duties.

Is it suitable for vacuum?
Yes, the stated vacuum capability is 10⁻² torr, subject to correct installation and seal condition.

When should this valve be selected?
Select it when a compact stainless steel 2-piece threaded PN64 isolation valve is required and the medium is compatible with CF8M, PTFE, TFM and FKM.