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L&T motorized gate valve

L&T 12" Class 300 Motorized Gate Valve CF8M Supplier Gujarat | Awal Valve

L&T Stainless Steel Gate Valve (Bolted Bonnet, 12" Class 300, CF8M, Motorized): Technical Specifications, Automation, and Buying Guide

Introduction

In large-scale process plants, chemical complexes, and refining facilities, managing high fluid volume alongside elevated pressure requires reliable, motorized flow control equipment. Manual operation of large-diameter, high-pressure valves can be labor-intensive and slow during emergency process isolation.

The L&T Stainless Steel Gate Valve (Bolted Bonnet, 12" Class 300, CF8M) is engineered for automated, heavy-duty flow isolation. Manufactured by L&T Valves, this 12-inch Class 300 gate valve features a robust CF8M (Stainless Steel 316) body, a bolted bonnet joint, and an integrated electric motor actuator for motorized process control.

Product Overview

The L&T 12" Class 300 CF8M Gate Valve features a single-piece cast stainless steel body paired with a multi-turn electric actuator mounted on an extended yoke.

Constructed from ASTM A351 Gr. CF8M (Cast SS 316), this valve combines corrosion resistance with ASME Class 300 pressure-temperature containment. The bolted bonnet assembly provides structural stability under cyclic thermal stresses, while the top actuator allows remote open/close control, SCADA integration, and fast isolation during process emergencies.

Technical Specifications

The certified engineering parameters for the L&T 12" Class 300 CF8M Motorized Gate Valve are detailed in the table below:

Technical Parameter

Specification Detail

Product Model

L&T Bolted Bonnet Motorized Gate Valve (12" Class 300)

Nominal Size

12 Inch (DN 300)

Pressure Rating

ASME Class 300 (#300)

Body Metallurgy

Cast Stainless Steel 316 (ASTM A351 Gr. CF8M)

Trim Material

SS 316 (API Trim No. 10 or equivalent SS 316 hardfaced)

Bonnet Construction

Heavy-Duty Bolted Bonnet with high-tensile SS stud bolting

Stem & Yoke Type

OS&Y (Outside Screw & Yoke), Rising Stem with Actuator Interface

Actuation

Electric Motor Actuator (Multi-turn, explosion-proof optional)

End Connections

Flanged End, Raised Face (RF) per ASME B16.5

Face-to-Face Standard

ASME B16.10

Design Standards

API 600 / ISO 10434 / ASME B16.34

Testing Standards

API 598 / ISO 5208

Key Features

  • Electric Actuator Integration: Factory-fitted with an intelligent multi-turn electric actuator, enabling automated remote operation, position feedback, and integration with DCS/SCADA control networks.
  • Corrosion-Resistant CF8M Body: Cast Stainless Steel 316 construction provides resistance to aggressive chemical media, organic acids, and corrosive processing environments.
  • ASME Class 300 Pressure Containment: Heavy-wall casting design and Class 300 flanging accommodate working pressures up to 50 bar (720 PSI) depending on operating temperature.
  • Bolted Bonnet Design: Heavy-duty bolted flange joint with spiral-wound stainless steel gasket ensures joint integrity under pressure surges and thermal cycling.
  • Flexible Wedge Seating: Precision-ground flexible wedge accommodates line stresses and thermal changes without sticking or thermal binding.
  • Full-Bore Unrestricted Flow: Straight-through full-port flow path minimizes pressure drop, fluid turbulence, and internal seat erosion.

Applications

The combination of SS 316 metallurgy, Class 300 rating, and motorized automation makes the L&T 12" Class 300 CF8M Motorized Gate Valve suitable for severe-service process environments:

  • Petrochemical & Refining Plants: High-volume hydrocarbon transfer, chemical recovery units, and off-site manifold isolation.
  • Chemical & Fertilizer Processing: Corrosive liquid lines, nitric acid distribution, and solvent recovery loops requiring SS 316 compatibility.
  • Power Generation: Boiler feed water isolation, condensate systems, and high-pressure water treatment lines.
  • Pharmaceutical & Bulk Drug Manufacturing: Centralized solvent distribution mains requiring automated SCADA control.
  • Offshore & Marine Terminals: Seawater intake, brine circulation, and ballast management loops.

Benefits

  • Automated & Remote Operation: Electric motor actuator eliminates manual handwheel operation on large 12" valves, speeding up process isolation.
  • Superior Chemical Resistance: CF8M stainless steel body protects against pitting and general corrosion, extending overall valve life.
  • Low Pressure Loss: Full-port gate geometry maintains flow velocity and system pump efficiency.
  • In-Line Maintainability: Bolted bonnet design allows internal inspection, seat lapping, and stem seal replacement during turnaround shutdowns.

L&T Valve Dealer in Ahmedabad and Gujarat

Industrial sectors across Gujarat—including chemical clusters in Dahej, refinery complexes in Jamnagar, and pharmaceutical plants in Ahmedabad—rely on certified process valves for plant safety. Sourcing through an authorized L&T valve dealer in Ahmedabad ensures authentic products supplied with original Manufacturer Test Certificates (MTC, 3.1) and complete material heat traceability.

Key industrial regions with strong demand for L&T motorized gate valves include:

  • Ahmedabad: Industrial estates of Vatva, Naroda, Odhav, Changodar, and Sanand.
  • Major Gujarat Industrial Zones: Vadodara, Ankleshwar, Bharuch (Dahej PCPIR), Surat (Hazira), Vapi, and Rajkot.

Partnering with an established L&T valve supplier in Gujarat simplifies procurement logistics, ensures competitive pricing, and provides expert technical assistance for motorized valve integration.

Why Choose Awal Valve

When procuring critical automation hardware like the L&T 12" Class 300 CF8M Motorized Gate Valve, L&T CS ball valve, or L&T SS ball valve, Awal Valve is your premier supply partner across Gujarat.

Why partner with Awal Valve:

  • 100% Genuine L&T Inventory: Factory-direct valves supplied with original Manufacturer Test Certificates (MTC, 3.1) and complete serial traceability.
  • Comprehensive Valve Range: Supply support for gate, globe, check, and ball valves in manual and motorized configurations.
  • Actuation Expertise: Technical support for matching motor actuators, voltage ratings, explosion-proof enclosures, and position feedback options.
  • Competitive Market Rates: Market-aligned pricing tailored for EPC contractors, OEMs, and plant maintenance teams.

Conclusion

The L&T Stainless Steel Gate Valve (Bolted Bonnet, 12" Class 300, CF8M, Motorized) is a top-tier flow isolation solution built for high-pressure, automated chemical and industrial process lines. Combining CF8M metallurgy, Class 300 pressure capability, and multi-turn electric actuation, it provides long-term operational safety and automated reliability.

For price quotes, electric actuator datasheets, or quick procurement in Gujarat, contact Awal Valve—your trusted L&T ball valve dealer and valve automation partner.

Frequently Asked Questions (FAQs)

Q1: What is the pressure rating of an ASME Class 300 CF8M gate valve at ambient temperature?

A: At ambient temperatures (-29°C to 38°C), an ASME Class 300 CF8M (SS 316) flanged valve is rated for a working pressure of approximately 720 PSI (49.6 bar).

Q2: What is the main advantage of an electric motor actuator on a 12" Class 300 gate valve?

A: Operating a manual 12" Class 300 gate valve requires significant torque and many turns of the handwheel. An electric actuator allows rapid, remote open/close operation, automated process integration with DCS/SCADA, and immediate emergency shutoff.

Q3: Can the L&T 12" CF8M gate valve be supplied with explosion-proof electric actuators?

A: Yes, the valve top flange can be fitted with ATEX / IECEx certified explosion-proof multi-turn electric actuators for hazardous area installations.

Q4: How can I procure authentic L&T motorized gate valves in Gujarat?

A: You can source authentic L&T motorized valves directly from an established L&T valve supplier in Gujarat like Awal Valve, complete with official factory test certification.

 

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