Pneumatic Knife Gate Valve

Description

PRODUCT NAME
Pneumatic Knife Gate Valve

MOQ
10 Nos

SUPPLIER
Krishna Industries
Ahmedabad, Gujarat, India

INTRODUCTION

A Pneumatic Knife Gate Valve is a critical flow control device designed for on–off isolation of media containing slurry, pulp, powder, granules, fibers, or semi-solid materials. In Indian industrial conditions—where reliability, low maintenance, and cost efficiency are key—this valve is widely preferred across cement plants, power plants, steel industries, sugar mills, paper & pulp units, chemical factories, wastewater treatment plants, and bulk material handling systems.

Krishna Industries, based in Ahmedabad, Gujarat, India, is a trusted supplier of Pneumatic Knife Gate Valves engineered for Indian operating environments. Our valves are designed to deliver consistent shut-off performance under high load, abrasive flow, and dusty service conditions. With strong sourcing, inspection, and application support, we cater to Indian buyers such as EPC contractors, plant maintenance teams, OEMs, traders, distributors, and project procurement departments.

This Pneumatic Knife Gate Valve works using a compressed air-operated pneumatic actuator that moves a sharp-edged gate (knife) perpendicular to the flow. The knife design allows the valve to cut through thick media such as slurry, fly ash, cement, lime powder, bagasse, coal dust, and wastewater sludge. Compared to other industrial valves like gate valves, butterfly valves, ball valves, or plug valves, the knife gate valve offers superior performance in heavy-duty isolation applications.

Related industrial valve products commonly used alongside Pneumatic Knife Gate Valves include manual knife gate valves, electric actuated knife gate valves, slurry valves, pinch valves, butterfly valves, and slide gate valves. Together, these valves form the backbone of industrial fluid and bulk material control systems across Indian manufacturing and processing industries.

PRODUCT OVERVIEW

The Pneumatic Knife Gate Valve supplied by Krishna Industries is designed for rugged industrial use with minimal pressure drop, fast operation, and high cycle life. Pneumatic actuation ensures safe and reliable remote operation, making it suitable for automated systems and hazardous locations where manual operation is not preferred.

Our Pneumatic Knife Gate Valves are manufactured using high-quality cast iron, ductile iron, carbon steel, or stainless steel bodies depending on application requirements. Seats are available in metal-to-metal or soft-seated configurations such as EPDM, NBR, or PTFE to suit different media and temperatures.

Each valve is pressure-tested and dimensionally inspected before dispatch to ensure reliable service life and compliance with Indian industry expectations.

KEY FEATURES

• Pneumatic cylinder-operated on/off control
• Sharp-edged knife gate for slurry and solid media
• Suitable for abrasive, viscous, and fibrous materials
• Compact face-to-face dimensions
• Low operating torque and fast actuation
• Leak-tight shut-off
• Robust construction for long service life
• Easy installation and maintenance
• Compatible with automation systems
• Designed for Indian industrial conditions

WORKING PRINCIPLE

The Pneumatic Knife Gate Valve operates using compressed air supplied to a pneumatic actuator. When air pressure is applied, the actuator drives the gate downward or upward depending on the fail-safe design. The knife-shaped gate slides through the media, cutting through solids and sealing against the valve seat when fully closed.

In normally closed (NC) configuration, the valve remains closed without air and opens when air is supplied. In normally open (NO) configuration, the valve remains open and closes when air is applied. Double-acting actuators allow controlled opening and closing using air pressure on both sides.

This simple and efficient mechanism ensures reliable operation even in dusty, slurry, or high-solid environments common in Indian plants.

APPLICATION AREAS IN INDIA

Pneumatic Knife Gate Valves supplied by Krishna Industries are widely used in the following Indian industries:

• Cement plants – clinker, raw meal, fly ash, coal handling
• Power plants – ash handling systems, bottom ash, fly ash
• Steel plants – slag, sinter, dust collection systems
• Sugar mills – bagasse handling, juice isolation
• Paper & pulp industry – pulp stock, sludge, wastewater
• Chemical plants – slurry chemicals, solid-liquid mixtures
• Fertilizer plants – powder and slurry control
• Mining and minerals – ore slurry, tailings
• Wastewater treatment plants – sludge isolation
• Bulk material handling systems – silos, hoppers, conveyors

ADVANTAGES FOR INDIAN BUYERS

Indian industries demand valves that are durable, cost-effective, and easy to maintain. Our Pneumatic Knife Gate Valves offer several advantages specifically for Indian buyers:

• Reliable operation in dusty and harsh environments
• Reduced manpower due to pneumatic automation
• Lower maintenance compared to conventional gate valves
• Easy availability of spares within India
• Competitive pricing suitable for project and bulk orders
• Local technical support from Ahmedabad-based supplier
• Faster delivery timelines across Indian states

MATERIAL OF CONSTRUCTION

Krishna Industries offers Pneumatic Knife Gate Valves in the following standard material options:

Body
• Cast Iron
• Ductile Iron
• Carbon Steel
• Stainless Steel (SS304 / SS316)

Gate
• Stainless Steel
• Hardened Carbon Steel

Seat
• Metal-to-Metal
• EPDM
• NBR
• PTFE

Pneumatic Actuator
• Aluminum body pneumatic cylinder
• Double-acting or single-acting (spring return)

TECHNICAL SPECIFICATIONS

• Size Range: DN50 to DN600 (and above on request)
• Pressure Rating: PN10 / PN16
• End Connection: Wafer type / Lug type / Flanged
• Actuation: Pneumatic
• Operating Pressure (Air): 4–8 bar
• Media: Slurry, powder, granules, liquids with solids
• Temperature Range: As per seat material
• Mounting: Vertical or horizontal
• Standards: Suitable for Indian industrial usage

QUALITY & INSPECTION

Every Pneumatic Knife Gate Valve supplied by Krishna Industries undergoes strict quality checks including:

• Visual inspection
• Dimensional inspection
• Pneumatic actuator testing
• Seat leakage testing
• Functional open-close cycle testing

This ensures that Indian buyers receive valves that perform reliably in real plant conditions.

WHY CHOOSE KRISHNA INDUSTRIES

Krishna Industries is a reliable supplier of industrial valves in Ahmedabad, Gujarat, India. We focus on providing quality products, competitive pricing, and dependable after-sales support to Indian buyers across multiple industries.

Reasons Indian customers choose us:

• Strong supplier network
• Consistent product quality
• Application-based valve selection
• Competitive pricing for bulk orders
• Ready stock and fast dispatch
• Support for traders, distributors, and projects
• Experience in supplying valves across India

We understand Indian operating conditions and procurement challenges, and our Pneumatic Knife Gate Valves are selected to meet practical site requirements rather than just theoretical specifications.

PACKING & SUPPLY

• Secure packing suitable for domestic transport
• Each valve packed to prevent damage during transit
• Bulk packing available for project supply
• Supplied with test and inspection details

FREQUENTLY ASKED QUESTIONS (FAQ)

FAQ 1: What is the MOQ for Pneumatic Knife Gate Valve?
The minimum order quantity is 10 numbers, suitable for traders, contractors, and industrial buyers.

FAQ 2: Is this valve suitable for slurry and powder applications?
Yes, the sharp knife gate design is ideal for slurry, powder, ash, cement, and solid-laden media.

FAQ 3: Can this valve be used in automated systems?
Yes, pneumatic operation makes it suitable for automation and remote operation in Indian plants.

FAQ 4: What air pressure is required for operation?
Typically, clean compressed air between 4 to 8 bar is sufficient.

FAQ 5: Are spare parts available in India?
Yes, spare parts and actuator components are readily available within India.

FAQ 6: What industries commonly use this valve in India?
Cement, power, steel, sugar, paper, chemical, and wastewater treatment industries widely use this valve.

FAQ 7: Is installation easy for Indian plant teams?
Yes, the wafer or flanged design allows easy installation and replacement.

FAQ 8: Can the valve be supplied in different materials?
Yes, cast iron, ductile iron, carbon steel, and stainless steel options are available.

FAQ 9: Does Krishna Industries supply in bulk for projects?
Yes, we regularly supply Pneumatic Knife Gate Valves for Indian industrial projects and bulk requirements.

FAQ 10: Where is Krishna Industries located?
Krishna Industries is based in Ahmedabad, Gujarat, India, serving customers across the country.

CONCLUSION

The Pneumatic Knife Gate Valve is an essential isolation valve for Indian industries handling slurry, solids, and abrasive media. With robust construction, reliable pneumatic actuation, and suitability for harsh operating conditions, it remains a preferred choice across multiple sectors.

Krishna Industries, Ahmedabad, Gujarat, India, supplies Pneumatic Knife Gate Valves that meet the expectations of Indian buyers in terms of performance, durability, availability, and value. Whether for plant maintenance, new installations, or large-scale projects, our valves are engineered to deliver dependable service in real-world Indian industrial environments.