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CS WCB Gate Valve – Class 150 Flanged End
Heavy-duty carbon steel gate valve for on–off flow control in oil & gas, refinery, power, water, and industrial process pipelines. ASTM A216 WCB body, Class 150, flanged ends, API 600/603. Full bore, low pressure drop, tight shut-off. Sizes: ½″ to 24″. Trusted by EPC contractors and government projects across India.
Krishna Industries (KELOR), Ahmedabad — supplier of premium-quality CS WCB Gate Valves Class 150 Flanged End. Manufactured from Carbon Steel ASTM A216 WCB, this valve is engineered for high-pressure, high-temperature isolation service in Indian oil & gas pipelines, refineries, power plants, water distribution systems, and industrial process lines. Flanged end connection ensures easy installation and strong sealing with standard ANSI B16.5 flanges.
The gate valve design provides full bore flow with minimal pressure drop, making it the preferred choice over butterfly valves, ball valves, and globe valves where straight-through flow and tight shut-off are critical. Available in rising stem and non-rising stem configurations, with handwheel or gear operation for sizes up to 24″. All valves tested as per API 598 with manufacturer test certificates (MTC) as per EN 10204 3.1. GST invoice with test reports. Bulk stock available for immediate dispatch across India.
CS WCB gate valves are commonly installed alongside ball valves, check valves, globe valves, butterfly valves, and plug valves in Indian piping systems. They are preferred in applications where reliable isolation, full flow area, and long service life are essential — especially in government water supply projects, refinery expansions, thermal power stations, and sugar factory steam lines found across Gujarat, Maharashtra, Rajasthan, Madhya Pradesh, and other Indian states.
💰 CS WCB Gate Valve Class 150 FE (2″ Handwheel) starting from ₹1,200/piece — Gear operated from ₹4,500/pc — Bulk discount on 25+ pcs. WhatsApp RFQ ↗
Product Description – CS WCB Gate Valve Class 150
Heavy-duty carbon steel isolation valve for on–off flow control in demanding industrial pipelines.
The CS WCB Gate Valve Class 150 Flanged End is a robust and reliable isolation valve widely used across Indian industries for on–off flow control applications. Manufactured from Carbon Steel ASTM A216 WCB, this valve is designed to handle high-pressure and high-temperature services commonly found in oil & gas pipelines, refineries, power plants, water distribution systems, and industrial process lines throughout India.
This valve features a Class 150 pressure rating with Flanged Ends (F/E), ensuring easy installation, strong sealing, and compatibility with standard Indian and international piping systems conforming to ANSI B16.5 flange standards. Compared to butterfly valves, ball valves, check valves, and globe valves, the CS WCB gate valve is preferred when full bore flow and minimal pressure drop are required — making it the standard choice for main line isolation in process plants and utility networks.
Commonly sourced by EPC contractors, government projects, water treatment plants, sugar factories, textile industries, chemical plants, and exporters, this valve offers long service life, excellent strength, and low maintenance — making it a cost-effective choice for Indian buyers who need dependable isolation valve performance in demanding operating conditions. The flanged end construction allows for easy installation and removal using standard bolting, without the need for special welding procedures.
As a trusted carbon steel valve supplier in Ahmedabad, Gujarat, Krishna Industries supplies CS WCB gate valves to traders, distributors, EPC contractors, government agencies, municipal corporations, and industrial plant operators across India. All valves are sourced from quality-assured manufacturing units and undergo strict inspection to meet API 600/API 603 design and API 598 testing standards. Related keywords: carbon steel gate valve, WCB gate valve, Class 150 gate valve, flanged end gate valve, industrial gate valve, CS gate valve supplier India.
Key Features of CS WCB Gate Valve
Engineered for strength, reliability, and long service life in Indian industrial conditions.
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ASTM A216 WCB Carbon Steel Body
High-strength carbon steel body with excellent mechanical properties for high-pressure and high-temperature service in demanding industrial applications.
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Full Bore Design – Minimal Pressure Drop
Gate valve provides straight-through full bore flow path with virtually no obstruction, ensuring minimal pressure loss and maximum flow efficiency.
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Flanged End Connection (ANSI B16.5)
Standard flanged ends for easy bolted installation between flanges — no welding required, allowing quick removal and maintenance.
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Handwheel / Gear Operation Options
Handwheel operation for smaller sizes; gear-operated options available for larger sizes (typically 8″ and above) for easier operation.
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High-Temperature & High-Pressure Service
Class 150 rating suitable for moderate pressure and temperature applications including steam, hot oil, and industrial process fluids.
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Rising Stem / Non-Rising Stem Options
Outside screw and yoke (OS&Y) rising stem for visual position indication; non-rising stem (NRS) options for space-constrained installations.
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Low Operating Torque & Tight Shut-Off
Precision-machined wedge and seat surfaces ensure low turning effort and bubble-tight sealing for reliable isolation service.
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Accepted in Government & EPC Projects
Widely specified and accepted in Indian government water projects, municipal supply systems, and EPC contractor project specifications.
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Easy Availability of Spares
Standard API 600 design ensures easy availability of replacement parts including gaskets, stem packing, and wedge seats across India.
Technical Specifications
Complete specifications for informed procurement decisions.
| Parameter | Specification |
|---|---|
| Valve Type | Gate Valve |
| Body Material | Carbon Steel ASTM A216 WCB |
| Pressure Rating | ANSI / ASME Class 150 |
| End Connection | Flanged End (ANSI B16.5) |
| Size Range | DN 15 (½″) to DN 600 (24″) |
| Operation | Handwheel / Gear Operated |
| Stem Type | Rising Stem (OS&Y) / Non-Rising Stem (NRS) |
| Disc Type | Solid Wedge / Flexible Wedge |
| Seat Material | Carbon Steel / SS 316 / Stellite (as per requirement) |
| Design Standard | API 600 / API 603 |
| Testing Standard | API 598 |
| Flange Drilling | ANSI B16.5 Class 150 |
| Face-to-Face | ASME B16.10 |
| Temperature Range | -29°C to +425°C (WCB) |
| Pressure Test | Shell test, Seat test (API 598) |
| Suitable Media | Water, Steam, Oil, Gas, Air, Chemicals |
| Application | Oil & Gas, Refinery, Power, Water, Chemical, Sugar |
| Certification | MTC as per EN 10204 3.1 |
Available Size Variants
½″ – 1″DN15 – DN25
1¼″ – 2″DN32 – DN50
3″ – 4″DN80 – DN100
6″ – 8″DN150 – DN200
10″ – 12″DN250 – DN300
14″ – 16″DN350 – DN400
18″ – 20″DN450 – DN500
24″DN600
WCB
Body Material (ASTM A216)
½″–24″
Size Range
CL 150
Pressure Rating
API 600
Design Standard
How a CS WCB Gate Valve Works
Simple, reliable on–off isolation — the most trusted valve in industrial piping.
1
Valve Fully Open
The gate (wedge disc) is completely lifted out of the flow path, providing full bore unobstructed flow with minimal pressure drop. In rising stem design, the stem visually indicates the open position.
2
Valve Closing
Turning the handwheel (or gear operator) rotates the stem, lowering the wedge gate into the body seat area. The gate descends gradually, progressively reducing the flow area until fully seated.
3
Valve Fully Closed — Tight Shut-Off
The wedge gate is firmly seated between two body seats, creating a metal-to-metal seal that blocks flow completely. The mechanical advantage of the threaded stem ensures tight shut-off even under pressure.
4
Bidirectional Sealing
Gate valves seal from both flow directions, providing reliable isolation regardless of pressure direction. This bidirectional capability makes them ideal for main line isolation in process and utility piping.
Why Carbon Steel WCB for Gate Valves?
The most widely used carbon steel grade for industrial gate valves worldwide.
High Strength & Durability
ASTM A216 WCB carbon steel provides excellent tensile strength and impact resistance, suitable for high-pressure and high-temperature service in demanding industrial environments.
Wide Temperature Range
WCB material handles temperatures from -29°C to +425°C, covering the vast majority of industrial process conditions encountered in Indian refineries, power plants, and process industries.
Cost-Effective vs Alloy Steel
WCB carbon steel delivers excellent mechanical properties at a fraction of the cost of alloy steel or stainless steel valves — ideal for non-corrosive and mildly corrosive services.
Easy Weldability & Repair
WCB carbon steel is easily weldable using standard procedures, allowing field repairs, modification, and fabrication of specials without exotic welding requirements.
Universal Industry Acceptance
WCB is the most commonly specified carbon steel grade for gate valves globally — accepted in API 600, ASME B16.34, and all major international piping codes and project specifications.
Applications in Indian Industries
Trusted across critical infrastructure and industrial piping systems throughout India.
🔥 Oil & Gas Pipelines
Main line isolation valves in crude oil, natural gas, and petroleum product pipelines. Full bore design ensures pigging compatibility and minimal pressure drop in long-distance transmission lines.
🏭 Petrochemical & Chemical Plants
Process isolation valves in refinery units, petrochemical plants, and chemical processing facilities. WCB material handles hydrocarbons, process fluids, and mildly corrosive media effectively.
⚡ Thermal & Power Generation
Boiler feed water isolation, steam line isolation, and auxiliary system valves in thermal power plants. Class 150 rating suitable for moderate pressure steam and water service.
💧 Water Supply & Distribution
Isolation valves in municipal water supply pipelines, pumping stations, water treatment plants, and irrigation systems. Widely used in government Jal Jeevan Mission and AMRUT projects.
🌾 Sugar, Cement & Fertilizer
Process line isolation in sugar factories (juice, steam, condensate), cement plants (air, water), and fertilizer plants (process fluids, cooling water) across India.
🚨 Fire Protection Systems
Isolation valves in fire hydrant lines, fire pump discharge lines, and sprinkler system main risers where reliable full-flow isolation is critical for fire safety compliance.
🏭 Textile & Dyeing Industries
Steam, hot water, and process fluid isolation in textile processing plants and dyeing units commonly found in Gujarat, Tamil Nadu, and Maharashtra industrial clusters.
🌐 Export & International Projects
CS WCB gate valves manufactured to API 600 standards are widely exported to Middle East, Southeast Asia, and African markets for international EPC projects.
🛠 HVAC & Building Services
Chilled water, hot water, and steam isolation valves in large commercial building HVAC systems, hospitals, hotels, and institutional heating/cooling plants.
Price Guide – CS WCB Gate Valve Class 150 FE
Indicative prices for Indian buyers — actual pricing based on size, quantity, and order terms.
💰 Indicative Price Range (Ex-Works Ahmedabad, GST Extra)
½″ – 1″
₹1,200 – ₹2,800 / piece
Handwheel, CS WCB
1¼″ – 2″
₹2,500 – ₹5,500 / piece
Handwheel, CS WCB
3″ – 4″
₹5,000 – ₹12,000 / piece
Handwheel / Gear
6″ – 8″
₹12,000 – ₹28,000 / piece
Gear Operated
10″ – 14″
₹28,000 – ₹55,000 / piece
Gear Operated
16″ – 24″
₹50,000 – ₹85,000 / piece
Gear Operated
⚠ Prices are indicative and may vary based on quantity, material grade, seat type, and delivery location. GST @18% extra. Bulk discount available on orders of 25+ pieces. Contact for firm quotation.
Quality Assurance & Testing
Every valve inspected and tested to meet international quality standards.
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Hydrostatic Shell Test (API 598)
Each valve undergoes hydrostatic shell test at 1.5 times the Class 150 pressure rating to verify body, bonnet, and end connection integrity without leakage.
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Seat Leakage Test (API 598)
High-pressure seat test ensures the wedge-to-seat seal provides bubble-tight shut-off as per API 598 allowable leakage rates for metal-seated gate valves.
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Manufacturer Test Certificate (MTC)
EN 10204 Type 3.1 certificate provided with heat number traceability, chemical composition, and mechanical properties of the WCB casting material.
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Dimensional Inspection
Face-to-face dimensions verified as per ASME B16.10, flange drilling as per ANSI B16.5, ensuring full interchangeability with other API 600 gate valves.
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ISO 9001:2015 Certified Supplier
Krishna Industries operates under ISO 9001:2015 quality management system, ensuring consistent quality, proper documentation, and traceability for every order.
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GST Invoice & Proper Packaging
Every shipment includes GST tax invoice, test reports, and proper packaging for safe transit. Wooden crate packaging available for export orders.
Why Buy from Krishna Industries?
Trusted CS gate valve supplier to industries across India since 2017.
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Competitive Pricing
Direct sourcing from quality manufacturers and bulk buying power enables us to offer the most competitive prices for CS WCB gate valves in the Indian market.
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Bulk Stock & Fast Dispatch
Ready stock of popular sizes from ½″ to 12″ for immediate dispatch. Larger sizes available on short lead times. Same-day invoicing for stock items.
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PAN India Delivery
Reliable delivery across all Indian states via trusted logistics partners. Door delivery to project sites, factories, and warehouses throughout India.
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Technical Support
Our experienced sales team provides technical guidance on valve selection, sizing, material compatibility, and installation best practices for your specific application.
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GST Registered & Compliant
Fully GST-registered business with GSTIN: 24AKLPP6499B1ZT. Proper GST invoice, HSN codes, and compliance for all B2B and government procurement requirements.
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Trusted by 500+ Buyers
Regular supplier to EPC contractors, municipal corporations, sugar factories, textile units, chemical plants, and industrial traders across Gujarat and India.
Frequently Asked Questions
Quick answers to common queries about CS WCB Gate Valve Class 150.
What does WCB mean in gate valves?
WCB refers to ASTM A216 WCB, a carbon steel grade widely used for pressure-containing valve bodies. WCB stands for “Wrought Cast (grade B)” and is the most common material specification for carbon steel gate valves globally. It provides excellent mechanical strength, good weldability, and suitable corrosion resistance for non-corrosive and mildly corrosive services including water, steam, oil, and gas.
What is Class 150 pressure rating?
Class 150 indicates the pressure-temperature rating as per ASME B16.34 standards. For carbon steel (WCB) material, Class 150 corresponds to a maximum working pressure of approximately 285 psi (19.6 bar) at ambient temperature. As temperature increases, the allowable working pressure decreases per ASME B16.34 rating tables. Class 150 is suitable for moderate pressure applications and is the most commonly used pressure class for general industrial service.
Is this valve suitable for water service?
Yes, CS WCB gate valves are widely used in water supply, irrigation, and industrial water pipelines across India. They are commonly specified in municipal water distribution projects, Jal Jeevan Mission schemes, AMRUT projects, and industrial water treatment plants. For buried underground water service, consider external coating or epoxy lining for additional corrosion protection.
Can this valve be used for steam?
Yes, CS WCB gate valves are suitable for steam applications within Class 150 pressure and temperature limits. WCB material can handle saturated steam temperatures up to approximately 425°C. They are commonly used in sugar factory steam lines, thermal power plant auxiliary steam systems, and industrial process steam headers. Ensure proper gasket and packing material selection for steam temperature.
What sizes are available?
CS WCB gate valves Class 150 are typically available from DN 15 (½″) up to DN 600 (24″) depending on manufacturer and stock availability. Common sizes stocked by Krishna Industries include ½″, ¾″, 1″, 1¼″, 1½″, 2″, 3″, 4″, 6″, 8″, 10″, and 12″. Larger sizes (14″ to 24″) are available on order with short lead times.
What standards are followed?
Design and manufacture as per API 600 (or API 603 for corrosion-resistant variants), face-to-face dimensions as per ASME B16.10, flange end dimensions as per ANSI B16.5, pressure-temperature ratings as per ASME B16.34, and inspection and testing as per API 598. These are internationally recognized standards accepted in Indian and global projects.
Is gear operation available?
Yes, gear-operated options are available for larger sizes, typically 8″ and above. Gear operators reduce the torque required to open and close the valve, making operation easier and safer for large gate valves operating under pressure. Handwheel operation is standard for smaller sizes up to 6″. Electric motor operators (EMO) and pneumatic actuators can also be arranged on request.
Can this valve be used for oil and fuel?
Yes, CS WCB gate valves are suitable for petroleum products including crude oil, diesel, furnace oil, fuel oil, and light hydrocarbons within Class 150 pressure-temperature limits. They are widely used in refinery pipelines, oil depot terminals, fuel oil handling systems, and petrochemical process lines across India. For sour service (H2S containing media), specify appropriate material and NACE compliance.
Is this valve suitable for export?
Yes, CS WCB gate valves manufactured to API 600 standards are widely exported and accepted in international projects across the Middle East, Southeast Asia, Africa, and South America. Krishna Industries can arrange export documentation, wooden crate packaging, and shipping coordination for international orders. We have experience supplying to EPC contractors executing overseas projects.
Do you provide test certificates?
Yes, Manufacturer Test Certificate (MTC) as per EN 10204 Type 3.1 is provided on request. The MTC includes heat number traceability, chemical composition analysis, mechanical properties (tensile strength, yield strength, elongation, impact value), and material grade confirmation. Additionally, hydrostatic shell test and seat leakage test reports as per API 598 are available with every supply.
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