DN80-PN16-RF F304 Bellows Seal Globe Valve

TECHNICAL DATA SHEET

PRODUCT: Bellows Seal Globe Valve
MODEL / REFERENCE: DN80-PN16-RF F304
TYPE: Bolted Bonnet, Outside Screw & Yoke (OS&Y), Bellows Sealed

1.0 PRODUCT DESCRIPTION & APPLICATION
This bellows seal globe valve is engineered to provide bubble-tight shutoff and eliminate external leakage (fugitive emissions) in applications involving hazardous, volatile, toxic, or valuable fluids. The hermetically sealed metallic bellows acts as the primary stem seal, offering superior reliability over traditional packing. Constructed from ASTM F304 stainless steel, it is suitable for moderate corrosive services such as steam, hot water, general chemical processes, and other industrial applications where corrosion resistance and emission control are required.

2.0 DESIGN & STANDARDS

• Design Standard: ASME B16.34
• End Connection: RF (Raised Face) Flange per ASME B16.5
• Face-to-Face: ASME B16.10
• Flange Drilling: ASME B16.5, Series B (Standard)
• Fire Safe: API 607 / ISO 10497 (Optional)
• Fugitive Emissions: Can be designed to meet ISO 15848-1, TA-Luft standards (upon request).

3.0 GENERAL SPECIFICATIONS

4.0 PRESSURE-TEMPERATURE RATINGS

• Rated for PN 16 (16 bar) at the corresponding temperature limits as per ASME B16.34 for Class 150 valves.
• The bellows assembly is designed to withstand the full pressure differential across the valve and is rated for a minimum specified cycle life.

5.0 MATERIALS OF CONSTRUCTION

6.0 BELLOWS ASSEMBLY (KEY FEATURE)

• Type: Welded, multi-ply metallic bellows.
• Material: 304 Stainless Steel.
• Function: Primary dynamic seal, welded to the stem and bonnet, creating a leak-proof barrier between the process fluid and atmosphere.
• Testing: 100% pressure tested and helium leak tested to ensure integrity.

7.0 TESTING & INSPECTION

• Shell Test: Per API 598 standard at 1.5 x PN pressure.
• Seat Leak Test: Per API 598, Class IV or as specified.
• Bellows Integrity Test: Helium mass spectrometer test or equivalent.
• Documentation: Certificate of Conformance (COC). Material Test Certificates (MTC 3.1) available upon request.

8.0 SURFACE FINISH

• Internal: Smooth machined finish.
• External: Bead blasted or cleaned.
• Paint: Exterior carbon steel components painted with anti-corrosive epoxy paint. Standard color: Blue or as per customer requirement.

9.0 OPTIONS & ACCESSORIES

• Actuation: Pneumatic diaphragm/cylinder, electric motor actuator.
• Gear Operator (Recommended for DN80 manual operation)
• Limit Switches (for actuated valves)
• Positioners & Solenoid Valves
• Extended Bonnet for insulation or high-temperature service
• Different Seat/Disc Materials (e.g., hard-faced)
• Locking Device

10.0 NOTES

• F304 material offers good general corrosion resistance but is not recommended for severe chloride or acidic environments where F316/L would be required.
• The bellows is a critical component. Avoid excessive stem travel and ensure proper installation to prevent damage.
• All specifications are subject to change and must be confirmed with the final purchase order.

GUATANTEE:

SAVVY VALVES is committed to delivering exceptional product quality and worry-free after-sales service. Our valves are guaranteed to provide a minimum service life of 12 months, during which we will supply all necessary spare parts and detailed maintenance instructions free of charge. Within the warranty period, if any non-human-induced damage occurs, we will replace components at no cost and provide professional technical support. After the warranty expires, customers only need to pay for the cost of spare parts, while still benefiting from discounted maintenance services. Our goal is to help clients reduce operational costs and enhance production efficiency through reliable quality and comprehensive after-sales support. Whether for technical inquiries or maintenance needs, our expert team will respond promptly to ensure your valve system maintains optimal performance at all times.