Forged Steel Gate Valve Class 800 – Specs, Dealers & Price in India
Forged Steel Gate Valve Class 800 – Specs, Dealers & Price in India
Forged steel gate valves Class 800 are robust, high-pressure shut-off valves used extensively in steam, oil, gas, and thermal systems. These valves are designed to withstand extreme pressure-temperature conditions and are preferred in refinery, power generation, and chemical industries.
What is a Forged Steel Gate Valve Class 800?
This valve type is forged rather than cast, offering better mechanical properties and uniform structure. The "Class 800" refers to the ANSI pressure rating, which corresponds to high-pressure applications up to approximately 133 bar at ambient temperatures.
Key Features
- ANSI B16.34 compliant Class 800 pressure rating
- Forged steel body for durability and strength
- Bolted or welded bonnet options
- Rising stem design for clear position indication
- Integral or screwed ends (Socket Weld / NPT / BSP)
Materials of Construction (MOC)
- Body: A105 (Carbon Steel), F304 / F316 (Stainless Steel)
- Trim: 13% Cr, Stellited, SS316
- Bonnet: Bolted, Pressure Seal or Welded Type
- Seals: PTFE, Graphite, Spiral Wound Gasket
Applications
| Industry | Application |
|---|---|
| Power Plants | High-pressure steam shut-off |
| Oil & Gas | Pipeline isolation under pressure |
| Refineries | Crude and fuel flow regulation |
| Chemical Plants | High-temp acid/alkaline handling |
| Thermal Systems | Boiler and condensate control |
Top Forged Steel Gate Valve Class 800 Suppliers in India
- Udhhyog – Ready stock of Class 800 gate valves in A105, F316, F11. Request Quote
- L&T Valves – High-performance valves for petrochemical plants
- Amtech Valves – Specializing in forged and cast valves
- Hyper Valves – Class-rated gate, globe and check valves
- VIP Valves – Valve assemblies with ISO/API testing
Forged Steel Gate Valve Class 800 Price List (2025)
| Size (NB) | End Type | Material | Avg. Price (INR) |
|---|---|---|---|
| 15 NB | Socket Weld | A105 | ₹1,250 – ₹2,000 |
| 25 NB | Threaded | A105 | ₹2,100 – ₹3,200 |
| 40 NB | SW / BSP | F304 | ₹3,500 – ₹5,000 |
| 50 NB | SW / NPT | F316 | ₹5,500 – ₹8,000 |
| 80 NB | Welded | F11 Alloy | ₹9,500 – ₹14,000 |
Certifications & Standards
- ANSI B16.34 / B16.10 / B16.11 compliant
- API 602 (Gate Valves – Forged Construction)
- ISO 9001:2015 Certified Manufacturing
- Test Reports: Hydrostatic, PMI, MTC
- Optional: IBR Approval for steam use
Tips Before Buying
- Ensure pressure-temperature compatibility per Class 800 chart
- Choose correct end type: SW, NPT, BSP, Weld
- Ask for inspection certificates (MTC, PMI)
- Cross-verify gasket and trim material for process media
- Check delivery timelines – forged valves may have lead time
Why Buy from Udhhyog?
Udhhyog is a trusted name for forged steel valves in Class 800, offering premium quality, fast dispatch, and engineering support. Available in custom trims, ends, and with 3.1 certifications.
Contact Udhhyog: https://udhhyog.com | ? 9311120784
FAQs – Forged Steel Gate Valve Class 800
Q1. What is the max pressure for Class 800?
Class 800 valves can handle up to 133 bar (1900 psi) at ambient temperature, depending on MOC.
Q2. What’s the difference between Class 150 and 800?
Class 800 offers much higher pressure tolerance and is forged, whereas Class 150 is lower pressure and often cast.
Q3. Can Class 800 valves be used in steam lines?
Yes, especially with IBR certification and graphite seals for high temperature.
Q4. Is Class 800 suitable for corrosive media?
Yes, choose stainless steel (F304, F316) or alloy steel (F11, F22) based on media type.
Q5. Are custom trims available?
Yes, most manufacturers offer customization in trims and end connections upon request.
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