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Electric Worm Gear Wcb Carbon Steel Regulating Control Fully Welded Ball Valve Pn25 Dn800 Dn1200

Port Size:2″~56″

structure:BALL

application:General

power:electric actuator

customized support:OEM, ODM, OBM, Software reengineering

temperature of media:Normal Temperature

brand name:TIANYU

media:Oil Water Steam

Body material:Cast steel

Temperature:-29 to +200

Size:DN50 To DN1400

Connection:Welded

Working pressure:PN16-PN42

Seal Material:PTFE

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Description

Specification

TIANYU full-welded electric worm gear gate valve, through advanced welding technology and integrated design, delivers reliable fluid control for harsh industrial conditions. With deep customization and comprehensive services, it helps clients achieve safe, efficient, and intelligent system operations, setting a benchmark in high-pressure fluid control applications.

Product Overview

TIANYU Full-Welded Electric Worm Gear WCB Carbon Steel Gate Valve: The Sturdy Choice for Industrial Fluid Control

I. Core Analysis of Full-Welded Technology

(A) Advantages of Welding Processes

TIANYU full-welded electric worm gear WCB carbon steel gate valve abandons traditional flange connections, adopting a full-welded structure. The welding combines automated TIG (Tungsten Inert Gas) and SAW (Submerged Arc Welding) processes:

Automated TIG Welding is used for root pass welding of critical valve parts, precisely controlling heat input to ensure fusion quality. It forms a uniform, dense weld root to avoid defects like porosity and incomplete penetration.
SAW Welding is applied for filling and capping, featuring high efficiency, beautiful weld formation, and large penetration depth, ensuring high-strength and excellent mechanical properties of the welds.

This combined welding process integrates the valve body and bonnet into a solid whole, fundamentally eliminating potential leakage hazards from flange connections and improving sealing performance by over 60%.

(B) Welding Quality Control

TIANYU establishes strict quality control systems:

Pre-Welding Treatment: WCB carbon steel base materials undergo rigorous pretreatment, including surface grinding and cleaning to remove oil, rust, and impurities, ensuring cleanliness of welding joints. Environmental temperature and humidity are precisely controlled.
Real-Time Monitoring: Weld tracking systems monitor weld position and parameters (current, voltage, speed) in real time, automatically adjusting to ensure uniform weld formation.
Nondestructive Testing: All welds undergo 100% UT (Ultrasonic Testing) and RT (Radiographic Testing):
- UT detects internal defects like cracks and slag inclusions with high sensitivity.
- RT visually displays defect shape, size, and position, ensuring compliance with ASME BPVC standards.

II. Product Performance Enhancement Based on Full-Welded Technology

(A) Excellent Sealing Performance

The full-welded structure eliminates vulnerable sealing components like flange gaskets, avoiding leakage caused by gasket aging. It maintains zero leakage under high pressure (PN100, 10.0MPa) and high temperature (425℃), meeting strict requirements of industries like petrochemical and natural gas transportation. For example, in natural gas long-distance pipelines, zero leakage ensures safe and efficient transportation.

(B) High Strength and Long Service Life

Full-welded technology grants 30% higher structural strength than traditional flange valves, evenly bearing medium pressure and external loads to reduce stress concentration. Tested in high-temperature and high-pressure steam pipelines of the metallurgy industry, it withstands steam erosion and pressure fluctuations with a service life exceeding 10 years—1.5 times that of conventional valves—reducing replacement and maintenance costs.

(C) Adaptability to Harsh Environments

The integrated full-welded design, combined with surface anti-corrosion treatment (e.g., epoxy coating), enhances resistance to corrosion and environmental erosion. Eliminating flange gaps reduces corrosion medium infiltration, making it ideal for coastal chemical plants and offshore oil platforms, where it withstands seawater corrosion and sea breeze erosion for long-term stable operation.

Valve Details

III. Manufacturing Processes and Additional Advantages

(A) Precision Manufacturing

Body Casting: Resin sand casting with high-temperature annealing to relieve internal stress, ensuring uniform microstructure and stable performance.
Disc Processing: 1Cr13 base with Stellite overlay, sealing surface hardness HRC45-50, resisting erosion and wear in particle-containing media.
Drive System: Integration of electric actuator and worm gear reducer supports 4-20mA signal regulation and multiple bus protocols for industrial automation.

(B) Performance Indicators

Parameter	Specifications
Pressure Rating	PN16~PN100 (1.6~10.0MPa)
Temperature Range	-29℃~425℃
Flow Resistance	Coefficient ≤0.15 (18% energy saving)
Weld Detection	100% UT+RT, compliance with ASME BPVC

Application

IV. TIANYU Brand Customization Advantages

TIANYU provides end-to-end customization based on technical accumulation:

Technical Customization: Non-standard pressure (e.g., PN250), temperature (-46℃~550℃), diameter (DN700~DN1200), explosion-proof actuators (Ex d IIC T6), and flange standards (DIN/GOST), with 3D modeling and CFD analysis.
Efficient Delivery: 20-day standard lead time, 10-day turnaround for small batches (MOQ 50 units), 48-hour emergency production.
Global Service: 18-month warranty, 24/7 response from 3 regional service centers, 72-hour airfreight for spare parts, digital installation manuals, and remote maintenance support.

Our Strengths

Best Quality Industrial Valve Solutions For You

QUALITY WARRANTY

A warranty of 18 months after delivery or 12 months after installation is provided by TianYu for all supplied valves.

FAST LEAD TIME

General lead time is around 8 weeks(conventional valves) with high efficient production process and regular expedition procedure.

COST-EFFECTIVE PRICE

With A quality but cost-effective supply chain, we offer client with reasonable price and low aftersales cost, to build a healthy and long term partnership.

VALUE ADDED SERVICE

From early bidding to final shipment we have a professional team standby to support client on commercial, technical, quality and transportation issues.

Industrial Applications

Petrochemical Industry

In the petrochemical industry, valves are used to control fluid flow, pressure, and prevent accidents. They are capable of enduring high temperatures and pressures in refinery environments, ensuring safe and smooth operation of processes.

Power Industry

In the power industry, valves are used to control the flow of steam, water, and oil. Globe valves and gate valves in steam pipelines ensure smooth steam transportation, while butterfly valves are commonly used to regulate flow.

Food & Beverage Industry

In the food and beverage industry, valves are used for fluid transportation and control. These valves need to meet sanitary standards to ensure the safety and quality of food products.

Environmental Protection Sector

In the environmental protection sector, valves are used in wastewater treatment systems to control the discharge of sewage, ensuring the effectiveness of wastewater treatment. They play an important role in environmental protection and sustainable development.

Factory Capacity

China Professional Valve Manufacturer & Supplier

Years

Production Equipments

Manufactuing Area

0 m²

Annual Production Value

$ 0