Global Valve Engineering Leader

OEM Z41H-16C Gate Valve Supplier & Manufacturer

Heavy-duty cast steel wedge gate valves customized for modern industrial pipelines. Compliant with international standards, delivering zero-leakage isolation for water, gas, steam, and corrosive applications.

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TECHNICAL STANDARDS

What is a Z41H-16C Gate Valve?

The Z41H-16C Gate Valve is one of the most widely deployed industrial flow control valves globally. Its model code represents a highly structured configuration of engineering parameters in accordance with JB/T 308 standards:

  • "Z" (Type): Represents a Gate Valve, designed to provide full-flow isolation with minimal fluid friction loss.
  • "4" (Connection): Denotes a flanged end-connection type, allowing secure mounting into pipeline networks.
  • "1" (Structure): Signifies a rising stem, wedge-type single-disc mechanism.
  • "H" (Sealing Face): Relates to alloy steel (often Cr13 or Stellite overlay) sealing surfaces, providing high resistance to wear, cavitation, and heat.
  • "16" (Pressure rating): Represents 1.6 MPa nominal pressure class (equivalent to PN16 / Class 150 class constraints).
  • "C" (Material): Cast Carbon Steel (typically WCB / ASTM A216), suitable for a temperature spectrum from -29°C to 425°C.
Parameters Specifications
Nominal Diameter DN40 - DN1200 (1-1/2" to 48")
Nominal Pressure PN16 (1.6 MPa) / ANSI Class 150
Body Material WCB (Cast Carbon Steel), LCB, WCC
Sealing Material Cr13 Stainless Steel / Stellite Overlay
Design Standard GB/T 12234, API 600, DIN 3352
Flange Dimensions GB/T 9113, JB/T 79, EN 1092-1
Test & Inspection API 598, GB/T 13927
Macro Applications

Industrial Solutions for Critical Sectors

Our custom and OEM Z41H-16C WCB Gate Valves are engineered to deliver zero leakage and fail-safe operations in harsh system conditions.

Petrochemical & Gas Pipelines

Designed to withstand aggressive hydrocarbon mediums and cyclical thermal loads. Carbon steel WCB construction offers excellent toughness and mechanical resistance, preventing micro-fractures under high stress.

High-Pressure Steam Distribution

With standard-compliant Cr13 stainless steel hard facing, the valve disc resists steam erosion and thermal expansion warping, ensuring tight shutoff and reducing wear during high-temperature thermal cycling.

Water Treatment & Desalination

Integrating reliable ductile iron or premium cast steel valve bodies. Combined with corrosion-resistant finishes, they prevent rust formation and guarantee long-term bio-safety in municipal supply setups.

Corporate Overview

About KR Valve Group

KR Valve Group has more than 20 years of experience in producing standard and non-standard valves of various types. We supply a wide selection of over 500 valve products, including butterfly valves, gate valves, check valves, water control valves, as well as all their matching and accessory products. These products have applications in various industries such as water treatment, dam construction, commercial buildings, energy and heating, chemical engineering, etc. We have won high repeat purchase rates from customers with excellent product variety and quality.

Beyond product excellence, we are dedicated to creating a mutually beneficial partnership with every customer. We believe that reliable service is as crucial as superior products, and we strive to continuously optimize the customer experience to achieve long-term win-win cooperation.

Today, KR VALVE’s products have been exported to over 50 countries and regions in Europe, Asia, Africa, and Oceania, providing project construction and brand marketing services to thousands of customers. We look forward to collaborating with you, leveraging our expertise, comprehensive product range, and unwavering commitment to quality and service to support your success.

KR Valve Production Facility
500+
Valve Types
50+
Export Countries
20+
Years Experience
100%
Inspection Rate
Quality Assurance

R&D, Production and Zero-Leakage Quality Testing

Design & Innovation

Our dedicated R&D department ensures product design and continuous innovation. Technicians design and develop products meeting customer and market requirements. Our lab provides extensive modern testing capabilities to elevate product performance. We currently have 20 series and over 500 varieties of products.

Valve CAD Design

Strict Production Control

Our production department formulates and implements production plans to ensure timely delivery. Products are manufactured under strict supervision in accordance with the ISO-9001 quality management system. We possess over 30 production machines and update inventory monthly.

CNC Machining Line

100% Zero Leakage Inspection

Our inspection department conducts 100% testing. Zero leakage is our core principle. According to international quality standards, we perform rigorous tests on dimension tolerances, wall thickness, shell pressure, and seat sealing tightness. Digital test reports are issued for every batch.

Valve Pressure Testing
SUPPLY CHAIN EDGE

Why Source Z41H-16C Gate Valves from China Factory?

Leveraging China's world-leading industrial cluster advantage allows us to offer unmatched price-to-performance ratios without compromising material grade or testing specifications.

Full-Chain Casting Hub

Our foundry relies on advanced thermal analysis and sand reclamation processes. Direct vertical integration ensures cast carbon steel WCB material has no blowholes, inclusion defects, or structural weaknesses, providing optimal pressure containment.

High-Precision OEM/ODM Flexibility

We customize dimensions, face-to-face standards (ASME B16.10, DIN 3202), flange drillings (ANSI, DIN, BS), and actuator mounts (ISO 5211). This permits drop-in replacement into pre-existing European or American pipeline facilities.

Global Logistics & Scale

Strategically located near deep-water ports, we optimize maritime container logistics. Extensive raw-material stock and standard-component standardization allow us to guarantee short lead times even for large-scale municipal bids.

Values & Promises

Our Key Advantages & Core Services

Brand & OEM Partnerships

We have our own independent brand 'KR' and also provide OEM services to our customers, having established long-term relationships with many famous valve brands worldwide.

Equipped Factory

Our workshop is equipped with 15 advanced machining tools and optimized assembly lines. All line workers are highly experienced in valve engineering.

Comprehensive Range

We maintain 20 series and over 500 varieties of products, supplying both international standard and non-standard customized valve systems.

Flawless Product Quality

We strictly control the design and production parameters of each component, assembling them into highly reliable finished products.

Competitive Price Check

Direct-to-Factory Price

We offer highly competitive pricing built on our capacity to strictly control and optimize every process step of production in-house.

Pre- & After-Sales Service

We provide professional and complete pre-sales and after-sales service consultation, supported by a 24-hour fast response technical squad.

Factory Walkthrough

Observe Our Operations In Action

Machining Workshop Video Thumbnail
Valve Testing Video Thumbnail
SUCCESS STORY TRACK

Global Collaboration Cases

Our valve systems have demonstrated longevity and reliability across thousands of high-stakes utility, chemical, and energy projects.

Brazil Sewage Treatment Project

Sewage Treatment - Brazil

KR supplied various water control valves to a high-capacity sewage treatment project in Brazil, helping resolve municipal wastewater challenges.

Chile Dam Infrastructure

Hydro-Dam Construction - Chile

KR successfully delivered large-scale, high-pressure water control systems for a critical dam infrastructure project in Chile.

Italy Waterworks Network

Municipal Waterworks - Italy

Engineered and supplied large-diameter butterfly and non-return check valves for municipal drinking water distribution networks in Italy.

Indonesia Sludge Processing

Industrial Sludge Plant - Indonesia

Delivered chemical-resistant butterfly valves and heavy wedge gate valves to process dense media with minimal wear.

Vietnam Chemical Processing

Chemical Synthesis Plant - Vietnam

Supplied a suite of high-alloy corrosion-resistant flow control products designed to prevent dangerous process emissions.

Russia Natural Gas Processing

Natural Gas Pipelines - Russia

Designed and exported heavy-duty WCB gate valves and forged ball valves engineered to operate reliably in extremely low temperatures.

KR Service Background Value statement block image Collaboration Case 1 Collaboration Case 2 Collaboration Case 3 Collaboration Case 4 Butterfly valve structure icon Gate valve structure icon Check valve structure icon Strainer structure icon Water control valve structure icon Company Logo Secondary
FAQ

Technical Procurement Q&A

Technical answers to support project engineers and procurement managers during valve selection.

How does Z41H-16C compare to resilient-seated Z41X series valves?
The Z41H utilizes hard-faced metal-to-metal sealing (typically stainless steel or alloy steel over WCB) designed to withstand high temperatures up to 425°C and abrasive media. In contrast, the Z41X utilizes an EPDM/NBR rubber-encapsulated wedge (resilient seated), suitable for water utilities at lower temperatures (≤80°C) where soft sealing provides zero bubble leakage at lower pressures.
What testing standards are executed prior to dispatch?
Every Z41H-16C valve batch undergoes pressure testing compliant with API 598 or GB/T 13927. This includes a hydrostatic shell test at 1.5x nominal pressure (2.4 MPa for PN16) and a high-pressure seat closure test at 1.1x nominal pressure (1.76 MPa), alongside a low-pressure pneumatic seat test at 0.6 MPa to ensure zero leakage.
Can you customize face-to-face and flange drilling dimensions for ASME pipelines?
Yes. Through our OEM division, we regularly custom-machine Z41H-16C dimensions to comply with ASME B16.10 (face-to-face) and ASME B16.5 (Class 150 flange drilling), enabling seamless integration into projects engineered to American standards.
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