Manual Ceramic Eccentric Semi-BallValve

The Manual Ceramic Eccentric Semi-Ball Valve is a rugged, manually operated industrial valve designed for handling highly abrasive, corrosive, or viscous media. It features an eccentric semi-ball structure that lifts away from the valve seat when fully open, creating an unobstructed, full-bore flow path. The sealing components are crafted from high-hardness ceramic (HRC88), making it an ideal solution for industries such as mining, metallurgy, power generation, and chemical processing where conventional metal valves suffer from rapid wear and failure. This valve combines the self-compensating sealing of an eccentric design with the extreme durability of ceramic materials, ensuring long-term reliability and tight shutoff in demanding applications involving slurry, granular solids, or corrosive fluids.

Ⅰ. Product Introduction

The Manual Ceramic Eccentric Semi-Ball Valve is a rugged, manually operated industrial valve designed for handling highly abrasive, corrosive, or viscous media. It features an eccentric semi-ball structure that lifts away from the valve seat when fully open, creating an unobstructed, full-bore flow path. The sealing components are crafted from high-hardness ceramic (HRC88), making it an ideal solution for industries such as mining, metallurgy, power generation, and chemical processing where conventional metal valves suffer from rapid wear and failure.

This valve combines the self-compensating sealing of an eccentric design with the extreme durability of ceramic materials, ensuring long-term reliability and tight shutoff in demanding applications involving slurry, granular solids, or corrosive fluids.

Ⅱ. Product Features

Unobstructed Full-Bore Flow

The eccentric semi-ball lifts completely away from the seat when open, eliminating flow restrictions and minimizing pressure drop. This design prevents media buildup and ensures efficient, continuous flow.
Easy Operation with Low Torque

The ball surface disengages from the seat during opening, reducing friction and enabling smooth, low-torque manual operation. When closing, the semi-ball scrapes residual or adhesive media from the seat, ensuring a tight, reliable seal every time.
Self-Compensating Sealing

The eccentric structure allows the sealing face to automatically compensate for wear over time (with proper adjustment of the drive device limitation). This maintains consistent sealing performance and extends the valve’s service life.
Superior Wear & Corrosion Resistance

The metal-seal structure incorporates ceramic sealing components with a hardness of HRC88, providing exceptional resistance to abrasion, scratching, and corrosion. This outperforms traditional metal valves in harsh media environments.
Long Service Life & Low Maintenance

The ceramic components and self-compensating design deliver a significantly longer lifespan than standard valves, reducing the need for frequent repairs or replacements and improving operational stability.

Ⅲ. Technical Data

Basic Technical Parameters

Parameter Name	Specification
Through Way	Unidirectional seal, eccentric full-bore
Nominal Diameter (DN)	Customizable (typically DN50–DN300)
Nominal Pressure (PN)	PN10–PN40
Applicable Medium	Abrasive slurry, high-hardness granules, corrosive fluids, viscous media
Applicable Temperature	≤200℃
Design Standard	GB, API, DIN

Parts Material

Part Name	Material
Valve Body	Carbon steel, stainless steel, alloy steel
Semi-Ball	Alumina/zirconia ceramic
Valve Seat	Structural ceramic
Stem	Stainless steel (2Cr13/304)
Sealing Gasket	Flexible graphite, PTFE

Ⅳ．The main shape and connection size

DN	L			PN10(1.0MPa)						PN16(1.6MPa)
		D	D1		D2	B	f	Z-d	D		D1	D2	B	f	Z-d
50	124/178	165	125		102	18	3	4-φ18	165		125	102	18	3	4-φ18
65	145/190	185	145		122	18	3	8-φ18	185		145	122	18	3	8-φ18
80	165/203	200	160		138	20	3	8-φ18	200		160	138	20	3	8-φ18
100	194/229	220	180		158	20	3	8-φ18	220		180	158	20	3	8-φ18
125	210/254	250	210		188	22	3	8-φ18	250		210	188	22	3	8-φ18
150	229/267	285	240		212	22	3	8-φ22	285		240	212	22	3	8-φ22
200	243/292	340	295		268	24	3	8-φ22	340		295	268	24	3	12-φ22
250	297/330	395	350		320	26	3	12-φ22	405		355	320	26	3	12-φ22
300	338/356	445	400		370	26	4	12-φ22	460		410	378	28	4	12-φ22

About Us

Founded in 2016, Shanghai Wangye Valve Manufacturing Co., Ltd. is a professional industrial fluid control manufacturer with nearly a decade of experience, integrating R&D, intelligent production, sales, and customized solutions. Leveraging Shanghai’s advanced manufacturing advantages, we’ve built a reliable brand across petrochemicals, power, metallurgy, water treatment, and new energy industries, offering gate/ball/butterfly valves and tailored solutions for harsh conditions. Backed by advanced equipment, full-process quality control, and ISO certifications, we adhere to “Integrity, Quality, Customer Focus, Innovation” and provide comprehensive services, striving for long-term cooperation and continuous technological upgrading.

Why Choose Us

Talent and Efficient Team

WYE always insists that employees are the most valuable asset of the enterprise and the future of WYE; Adhere to prioritizing talent selection, education, and utilization in the development of enterprises; introducing talent as the highest return investment behavior. We regard talent as the primary resource for effective management, and pursue a high degree of harmony and unity between employee personal development and enterprise development.We encourage you to have a special perspective, think independently, and be good at organizing resources from all parties. Always maintain a responsible attitude towards results and a positive team spirit that is willing to share in every task..

High End Processing Equipment Creating Excellent Product Quality

Advanced automated production equipment and sophisticated assembly line production demonstrate first-class quality.Technical experts directly participate in production to ensure the concealment and reliability of the product.The increasing awareness of high-quality products and the continuous supply of industrial products have made WYE constantly changing.No matter how the world changes, the persistent spirit of excellence among WTE people remains unchanged.

Warehouse Strength

In our facility, raw materials (including core components and packaging supplies) are strictly controlled via a real-time digital inventory system—tracking batches, shelf life, and storage conditions to boost traceability and cut waste. Semi-finished products, post-preliminary quality checks, are stored per strict industry standards: labeled with progress/inspection records to avoid cross-contamination and damage. Finished products are sorted into specialized warehouses by type, market, and delivery schedule, streamlining picking and reducing dispatch delays. This standardized process effectively boosts efficiency: cutting redundant steps by 30%, shortening fulfillment cycles by 20%, and minimizing inventory/shipment errors.

Customized Solutions & After-Sales Support

Tailored to the distinct demands of industries like petrochemicals, new energy, and metallurgy, WYE provides personalized industrial fluid control solutions—covering pre-project demand assessment, customized valve design (matching specific working conditions like pressure or medium type), and on-site technical consultation to align with clients’ operational scenarios. Additionally, we offer comprehensive after-sales support: including on-site installation guidance, regular equipment maintenance inspections, and 24/7 responsive fault troubleshooting, which ensures the stable operation of clients’ systems and strengthens long-term cooperative partnerships.

Our Services

Our company is a one-stop solution for all valve-related needs, offering customization to tailor valves to unique specifications, professional installation & commissioning for seamless integration and optimal performance, maintenance & repair to keep valves in top condition and extend their lifespan, and technical support & consultation for expert advice on selection, optimization, and troubleshooting throughout every project stage.

PRODUCT PICTURE

EXHIBITION

PRODUCTION WORKSHOP

CERTIFICATIONS

CE-ROHS

ISO9001

ISO 15484

ISO 45001

API 607

COOPERATIVE PARTNER

Valve Solutions That Transform Your Operations

Our valves offer superior durability, precise control, and tailored solutions for your industrial, commercial, or residential needs. Don’t miss the opportunity to get reliable valve products and expert support.

Manual Ceramic Eccentric Semi-BallValve

Ⅰ. Product Introduction

Ⅱ. Product Features