Product Overview
- Part Number: 4KG27AES (also referenced as 4KG27AES-B)
- Manufacturer: Farris Engineering (A Curtiss-Wright Flow Control Company)
- Product Type: Gasket Kit / Bonnet Gasket Replacement Set
- Primary Application: Pressure Safety Valves (PSV) and Pressure Relief Valves (PRV)
- Compatibility: Engineered for specific Farris 2700 Series valves (e.g., 27CA13H-520/S4, 27EA34-F20)
Technical Specifications
- Base Material: High-grade 316 Stainless Steel (316 SS)
- Sealing Component: High-density flexible graphite or PTFE composite inserts
- Pressure Rating: Matches the maximum allowable working pressure (MAWP) of the host valve body
- Temperature Range: -320°F to 800°F (-195°C to 426°C) depending on final medium configuration
- Service Media: Air, gas, steam, vapor, hydrocarbon liquid, and corrosive chemicals
Design & Mechanical Features
- Profile Type: Spiral wound or jacketed configuration for high-cyclic pressure retention
- Spring-Back Effect: High recovery rate to maintain tight seal during thermal expansion cycles
- Corrosion Resistance: High resistance to pitting and stress corrosion cracking (SCC)
- Compliance: Manufactured in accordance with ASME Section VIII and API Standard 526/527
Kit Contents & Maintenance
- Main Bonnet Gasket: One (1) primary high-pressure sealing ring
- Secondary Seals: Pre-cut auxiliary body-to-bonnet seals
- Packaging: Sealed clean-room polythene packaging with moisture desiccant
- Shelf Life: Indefinite if stored in a cool, dry, UV-protected environment
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