Valves play a critical role in controlling fluid flow, and gland packing ensures they remain leak-proof even under extreme pressure and temperature. Among the most trusted sealing materials are Graphite, PTFE (Teflon), and Grafoil – each with specific advantages tailored for different valve types and industrial conditions.
At Udhhyog, Delhi’s top gland packing supplier and valve manufacturer, we provide high-performance sealing solutions for gate, globe, and control valves, serving industries like steam, chemical, water treatment, and power generation.
This article breaks down the properties and applications of graphite, PTFE, and Grafoil gland packing and provides specifications for their ideal use in valves.
What is Gland Packing?
Gland packing is a sealing material inserted around the valve stem inside a chamber known as the stuffing box. It prevents leakage by forming a tight seal when compressed using a gland follower and gland flange.
Used in:
Gate Valves
Globe Valves
Control Valves
Steam Valves
Graphite Gland Packing
✅ Features:
Withstands high temperatures up to 550°C
Resistant to chemicals, steam, and pressure
Flexible and easy to install
✅ Applications:
Steam valves
Power plants
Oil and gas pipelines
Chemical reactors
✅ Advantages:
Excellent thermal stability
High pressure resistance (up to 250 bar)
Cost-effective long-term sealing
PTFE Gland Packing
✅ Features:
Chemically inert and non-reactive
Temperature resistance up to 260°C
Low coefficient of friction
✅ Applications:
Globe and control valves
Acidic or alkaline chemical lines
Pharmaceutical and food-grade processing
✅ Advantages:
Ideal for corrosive environments
Non-stick, low wear
Prevents chemical contamination
Grafoil Gland Packing
Grafoil is a pure graphite-based material with no binders, making it perfect for nuclear and high-purity applications.
✅ Features:
Withstands extreme temperatures (up to 650°C)
High compressibility and resilience
Fire-safe and non-oxidizing
✅ Applications:
Nuclear plants
Superheated steam systems
Refineries and chemical plants
✅ Advantages:
Long-lasting under thermal cycling
Superior sealing under fluctuating pressure
Excellent in steam and high-purity services
Comparison Table: Graphite vs PTFE vs Grafoil
| Property | Graphite | PTFE | Grafoil |
|---|---|---|---|
| Max Temp | 550°C | 260°C | 650°C |
| Pressure Range | Up to 250 bar | Up to 150 bar | Up to 300 bar |
| Chemical Resistance | High (except oxidizers) | Excellent | Excellent |
| Steam Compatibility | Yes | No | Yes |
| Flexibility | Medium | High | High |
| Application Range | Broad | Specialty chemicals | High-purity & nuclear |
Gland Packing in Gate, Globe & Control Valves
🔸 Gate Valve Gland Packing
Operates fully open/closed
Uses graphite or Grafoil to handle high temps/pressure
🔸 Globe Valve Gland Packing
Requires flexible sealing for throttling
Ideal with PTFE or graphite packing
🔸 Control Valve Gland Packing
Needs low-friction, high-resilience material
Best with PTFE or Grafoil for dynamic applications
Valve Sizes & Gland Packing Availability at Udhhyog
Available for valves from 15mm to 300mm:
Cross-section sizes: 3mm, 6mm, 10mm, 12mm, 16mm, 19mm
Packing materials: Graphite, Grafoil, PTFE, Carbon fiber
Types: Preformed rings, spiral wound, compression rolls
Valve Types & Material Compatibility
| Valve Type | Graphite | PTFE | Grafoil |
| Gate Valve | ✅ | ❌ | ✅ |
| Globe Valve | ✅ | ✅ | ✅ |
| Control Valve | ✅ | ✅ | ✅ |
| Steam Valve | ✅ | ❌ | ✅ |
| Chemical Valve | ✅ | ✅ | ✅ |
Why Choose Udhhyog – Valve Packing Experts in Delhi
🏭 Custom Valve & Packing Solutions
We offer gland valve kits, stuffing box rings, and complete valve + packing assemblies.
🔧 Premium Packing Materials
Only certified materials from verified suppliers – Grafoil, PTFE, Graphite.
📦 Stock Ready for All Valve Sizes
Available in bulk quantities for OEMs and industries.
🧠 Technical Guidance & Sizing Help
Our engineers assist with material selection, pressure class, and sizing.
🚚 Fast Delivery Across North India
Serving Delhi, NCR, Punjab, Haryana, UP, Himachal Pradesh, and J&K.
Gland Packing Pricing in Delhi (Udhhyog Rates)
| Material | Size (mm) | Price Range (INR/kg or meter) |
| Graphite | 6–25 | ₹450 – ₹900 |
| PTFE | 6–19 | ₹500 – ₹1,000 |
| Grafoil | 6–25 | ₹1,200 – ₹2,000 |
📌 Prices vary by quantity, grade, and size. Contact Udhhyog for bulk or customized gland sets.
Conclusion
Selecting the right gland packing material for your valve type and fluid service is essential for long-lasting performance and safety. Whether you're dealing with high-pressure steam, aggressive chemicals, or precision control systems, the correct choice between Graphite, PTFE, or Grafoil can make all the difference.
Trust Udhhyog as your go-to supplier for gland packing and valve sealing solutions in Delhi.
Contact Udhhyog Today
📞 Call now or Visit Udhhyog Website for detailed product catalogs, technical support, and price quotes.
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