High-Quality Swing Check Valves Manufacturer in India

As a trusted manufacturer in India, Zebco provides robust swing check valves designed for efficient backflow prevention and dependable performance across various industrial applications.

Product Description

Design:ASME B16.34 / BS 1868
Face to Face :ASME B16.10 / DIN IS / BS
End to End:BW Type / Flanged End / RTJ
Pressure - Temp. Rating:ASTM B 16.34
Materials (Body | Bonnet):CS / SS / Alloys / Monel / Hastalloys / Bronze MOC
Flange End:ASME B 16.5
Test Standard:API 598 / BS 6755
Operation:Automatic
Size:1/2” up to 36“ (15NB - 900NB)
Class:150# - 2500#
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Check Valve Introduction: Preventing Backflow and Protecting Systems

TRUSTED MANUFACTURER, EXPORTER, AND SUPPLIER OF check VALVE IN India

Check valves play a crucial role in keeping fluid systems running smoothly by maintaining unidirectional flow and preventing backflow. Designed to meet strict industry standards like API 594 and ISO 9001, our check valves are built to handle tough applications with reliability and durability.

At Zebco Valves, we’re passionate about delivering high-quality check valves at prices that make sense. Engineered for performance, our valves open with fluid pressure and close securely with gravity or back pressure, ensuring smooth and dependable operations every time. Crafted using premium materials like Carbon Steel, Stainless Steel, and Duplex Stainless Steel, and fitted with top-notch components such as the body, cover plate, disc, and gaskets, our valves are built to last. Whether you’re in oil and gas, petrochemicals, or power generation, Zebco check valves are tailored to meet your specific needs.

Why Choose Zebco Check Valves?

  • Superior Quality: Each valve is made with certified, high-quality components to deliver reliable, long-lasting performance.
  • Advanced Design: Our valves use gravity and back-pressure activation for a secure seal and seamless operation.
  • Customer Commitment: We’re here for you before, during, and after your purchase, providing outstanding support whenever you need it.

Why You Should Use Check Valves in Your Industrial System

  • Long service life
  • Easy handling and maintenance
  • Stem packing replacement in working conditions
  • Prevents Backflow: Automatically stops fluid from flowing in the wrong direction, protecting your equipment and keeping operations efficient.
  • Simple and Reliable Design: With fewer moving parts, these valves are easy to install, use, and maintain, saving you time and effort.
  • Minimal Pressure Drop: The wide flow path allows for smooth fluid movement, ensuring better system performance with less resistance.
  • Perfect for Large Pipelines: Handles high flow rates and large volumes of fluid, making it ideal for bigger systems.
  • Versatile Applications: Works well with water, steam, oil, and gas, making it suitable for industries like oil and gas, petrochemicals, and water treatment.
  • Built to Last: Constructed with durable materials like Carbon Steel and Stainless Steel, these valves can withstand tough conditions and high pressures.
  • Easy to Maintain: Simple access to parts makes maintenance quick and hassle-free, reducing downtime.
  • Self-Operating: Works automatically without needing manual operation or external power, offering convenience and reliability.
  • Trusted Standards: Designed to meet global standards like API 594 and ISO 9001, ensuring safety and top-quality performance.

A Comprehensive Look at Check Valve Construction

The Swing Check Valve is a one-piece body, top entry design for reliable operation and extended seat seal life. Top entry construction allows field service and in-line maintenance if necessary. All major components of the check valve are normally made from cast and wrought forms, allowing the use of a variety of widely accepted materials. The full bore to API-6D assures unrestricted flow and allows pigging and hot tapping.

Construction

CAST STEEL, SWING TYPE DISC, RENEWABLE BODY SEAT RING, BOLTED BODY-TO-COVER CONNECTION.

Counter Weight Config

COUNTERWEIGHT
CONFIGURATION

Inside Pin

“INSIDE PIN” DESIGN FOR
“LOW F.E. PURPOSE”

1. COVERThe cover is in carbon or stainless steel and is also available in many other CRA. The connection sealing surfaces are raised face or ring joint to suit the valve rating.
2. BODYThe body is in carbon or stainless steel and is also available in many other CRA. It is carefully designed for total reliability, to keep the pressure drops to a minimum and simple maintenance. The basic dimensions, wall thickness, face to face and flanges, comply with the relevant BS, API and ASME standards. The body-to-cover flange is circular. The sealing surface for connection to the cover is recessed in the 150 and 300 Class and ring joint for higher ratings. The body is threaded for a renewable seat and an integral over-travel stop for the disc is incorporated. Two threaded bosses are provided for the location of the hinge pin. Bosses are eventually provided for drain threaded connection.
3. COVER BOLTINGBonnet studs and nuts are manufactured from alloy steel to the relevant ASTM standard.
4. HINGE PINThe hinge pin is part of the trim, in forged stainless steel and is machined from ground bar. The hinge pin is locked in the body with two threaded NPT plugs. The pin can be removed for maintenance of the valve.
5. SEAT RINGWelded-in-seat ring are supplied as a standard. The rings are part of the trim of the valve. For threaded solution, the outer diameter is threaded and its bore is notched for easy installation and dismantling. Special attention is given to the seating face which is ground and lapped, for a perfectly tight seal.
6. DISCThe disc is part of the trim and is in forged or cast steel. On the back face there is a threaded spigot for the connection to the hinge arm by a nut and cotter pin. The seating surface is ground and lapped.
7. HINGEThe hinge is made by forged steel and in cast steel.

Carbon stainless steel full port check valve

Gate Valve Overview 1
Gate Valve Overview 2
Gate Valve Overview 3
No.Name of PartASTM Specification
CARBON STEELHIGH-TEMPERATURE SERVICELOW TEMPERATURE SERVICESTAINLESS STEEL
1BODYA216 - WCBA217-WC6A217-WC9A217-C5A352-LCB/LCC/LC2/LC3CF8MCF8C
2BODY SEAT RINGA105 + HARD FACEA182-F11A182-F22A182-F5AA182-F304F316F347
3DISCA216 - CR13A217-WC6A217-WC9A217-C5A352-LCB/LCC/LC2/LC3CF8MCF8C
4DISC WASHERAISI 304
5DISC NUTAISI 304
6DISC PINAISI 304
7ARMA216 - WCBA217-WC6A217-WC9A217-C5A352-LCB/LC2/LC3CF8MCF8C
8BONNET BOLTA193-B7MA193-B16A193-B16A193-B16A320-L7MA193-B8A193-B8
9BONNET NUTA194-2HMA194-4A194-4A194-4A194-7MA194-8A194-8
10BONNET GASKETSPIRAL WOUND + GRAPHITE / RING JOINT
11COVERA216 - WCBA217-WC6A217-WC9A217-C5A352-LCB/LCC/LC2/LC3CF8MCF8C
12EYE BOLTC5
13HINGE PINA276 - 410A276-410A276-410A276-410A276-304F316F347
14GASKETGRAPHOIL
15PLUGC5F316F316

Industries We Serve

Zebco Engineering proudly serves a diverse array of industries, including manufacturing, energy, oil & gas, and more. Our products are designed to meet the highest standards across every sector we support.

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Zebco Engineering LLP: Leading Worldwide Manufacturer & Exporter of Industrial Valves

Zebco Engineering LLP is a trusted global manufacturer and exporter of industrial valves. Our range includes high-quality gate, ball, globe, and butterfly valves, designed as per API-approved standards for precision and durability. Serving industries like oil & gas, water treatment, and power generation worldwide, we are committed to delivering reliable and efficient flow control solutions.

Let’s Get Started

Our team is here to help with all your industrial needs. Reach out to us today, and let Zebco Engineering provide the solutions you're looking for.

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