Valves in Ductile Iron, Cast Steel & Stainless Steel
One-Stop Valve
Production Specialist
Used in power stations, petroleum, chemical, heat(power),
water conservancy, urban construction, pharmaceuticals, fertilizers,
metallurgy, mining, pressure vessels and other industries.
NOCK VALVES
Valves in Ductile Iron, Cast Steel & Stainless Steel
Our company mainly engages in the production and operation of high-medium-low pressure ductile iron, cast steel & stainless steel valves, including: gate valves, globe valves, ball valves, check valves, butterfly valves, safety valves, filters/strainers, steam traps, control valves, high-temperature high-pressure power station valves, metallurgical valves, water conservancy valves, etc.Coverage: Over 10 categories, thousands of specifications Valve body materials: HT, QT, WCB, CF8, CF8M, CF3, CF3M, 12CrMov, etc. Design/manufacturing standards: GB, ANSI, API, DIN Actuation methods: Manual, worm gear operation, pneumatic, hydraulic, electric Applications: Power stations, petroleum, chemical, heat(power), water conservancy, urban construction, pharmaceuticals, fertilizers, metallurgy, mining, pressure vessels and other industries.
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Company was founded in
Registered capital
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Exported Countries
APPLICATION INDUSTRY
Widely implemented in power stations, petroleum refining, chemical processing, thermal utilities, water conservancy, municipal engineering, pharmaceuticals, fertilizer production, metallurgy, mining, and pressure vessel systems.
Learn More01
Power Industry
Valve features include high-temperature & high-pressure resistance, high-flow capacity, and exceptional operational stability.
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Chemical Industry
Valves prioritize premium quality, corrosion resistance, superior sealing performance, and user-friendly operation.
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Metallurgical Industry
Valves require extreme temperature/pressure tolerance, reliable sealing integrity, industry-specific variants, and certified material quality.
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Pharmaceutical Industry
Valves must meet strict sanitary standards, energy efficiency compliance, fail-safe reliability, intelligent automation, and precision flow control.
Latest Information
Blog Articles
2026/06
03
Plunger Valve: 2026 Complete Buying Guide for Industrial Fluid Control
This 2026 comprehensive guide covers all critical details of Plunger Valve, including working principles, core advantages compared to traditional valves, step-by-step selection guidance, maintenance best practices, and cross-industry application scenarios. Based on NK Valve's decades of field manufacturing experience, the content integrates real test data, third-party certification details and common troubleshooting tips to help industrial buyers make cost-effective purchasing decisions.
Plunger Valve: 2026 Complete Guide for Heavy-Duty Industrial Fluid Control
This 2026 professional guide covers plunger valve working principles, selection criteria, maintenance protocols, industrial application scenarios, and exclusive advantages of Nock Valve plunger products. It answers top user queries to help procurement and engineering teams pick cost-effective, long-lasting fluid control solutions.
2026 Complete Guide to Plunger Valve: Selection, Applications & Maintenance
Created for industrial procurement teams, process engineers and facility maintenance staff, this 2026 actionable guide explains core features of plunger valves, compares their performance with other valve types, shares step-by-step selection workflows, and draws on Nock Valve’s 27 years of manufacturing experience to help users reduce valve operation cost by up to 35%.
Plunger Valve: 2026 Complete Industrial Guide for Selection, Use & Maintenance
This authoritative 2026 plunger valve guide is compiled by Nock Valve Group’s engineering team with 22+ years of industrial valve R&D experience. It includes accurate performance data, step-by-step selection procedures, comparative test results vs other common valves, and real industrial case references, helping global industrial users avoid common selection mistakes and reduce long-term operation costs effectively.
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One-Stop Valve Production Specialist
CONTACT US
No. 85 Xiangyang Road, Weicheng District, Weifang City, Shandong Province, China