Non-Rising Stem Design Resilient Seat Gate Valve

Concealed stem design: The valve stem nut is connected to the gate plate, and when the valve is opened and closed, the valve stem only rotates without lifting (driven by the handwheel or gearbox), saving installation space and suitable for underground or narrow environments.

Elastic soft seal: The gate plate is covered with elastic materials such as rubber or polyurethane (integral encapsulation process), forming a tight fit with the valve seat, with good sealing performance, and can compensate for slight wear.

Valve body material: usually cast iron (HT200, QT400), ductile iron or stainless steel, and the inner cavity is coated with epoxy resin for corrosion protection.

Design without diversion holes: Some models of gate plates are solid structures, suitable for fully open/fully closed working conditions, and not suitable for regulating flow.            

The above four items are the basic structure of Non Rising Stem Design Resilient Seat Gate Valve

Application

Municipal water supply: main pipeline network, secondary water supply system.

Fire protection system: wet/dry fire protection pipeline.

Building pipelines: Building water supply and drainage, HVAC circulating water.

Industrial field: sewage treatment, chemical media (sealing material needs to be selected according to the medium)

What are the core features of the Non-Rising Stem Design Resilient Seat Gate Valve?

Bidirectional sealing: It can effectively seal under both forward and reverse pressure, without being restricted by the flow direction of the medium.

Low flow resistance: When fully open, the channel is straight through, with low fluid resistance, suitable for high flow situations.

Corrosion resistant and durable: The valve body is often coated with epoxy resin, and the rubber seal is corrosion-resistant and has a long service life.

Easy maintenance: The sealing ring can be replaced, and some designs support online maintenance without disassembling the valve.

Applicable media: non corrosive media such as water, sewage, air, etc. (temperature generally≤80℃).

OEM/ODM Customization & Certification

Full Customization Support

Customization Item Options

Body Color RAL color series available (Standard: Blue RAL 5005)

Coating Thickness Epoxy powder coating, 250-400 microns adjustable

Branding Cast logo on body / Laser marking / Stainless steel nameplate

Operation Mode Handwheel / Gearbox / Electric actuator / Pneumatic actuator

Flange Standard GB / ANSI / BS / DIN / JIS optional

Packaging Neutral export packaging / Customer brand packaging

Certifications & Standards: ISO 9001:2015 Quality Management System. Compliant with GB/T 24924, AWWA C509, EN 1171. Factory test report with CNAS stamp available per batch. Can provide Certificate of Origin, Form E, CIQ upon request.

Factory & Production Strength

Even when summer temperatures exceed 38°C (100°F), our frontline workers remain on duty, working overtime to ensure timely production and delivery of butterfly valves, gate valves, ball valves, and other core products for both domestic and overseas customers. We have recently completed production of multiple overseas orders, primarily consisting of butterfly valves and gate valves, which have been smoothly packed and shipped to customers' countries.

Exhibition Information

We will be attending ASIAWATER 2026 in Kuala Lumpur, Malaysia (April 2026). Welcome to visit our booth.

After-Sales Service & Shipping Details

Each valve undergoes strict pressure testing and material inspection before leaving the factory. 12-18 months warranty available based on contract terms.

Sample lead time: 7 days for standard sizes (DN50-DN300). Bulk order lead time: 30 days for container order.

Packaging for export: Standard wooden case / pallet packaging with fumigation certification. Flange faces protected with plastic caps. Spare parts support: Rubber seat rings, O-rings, and stem nuts available for 5 years.

Industrial Applications

From our actual project experience:

Electroplating Plant in Zhejiang: Replaced with Zhongguan PVC ball valves, solved long-term corrosion problem, saved nearly RMB 200,000 in annual maintenance cost.

Wastewater Treatment Plant in Shandong: After on-site evaluation by our technical team, replaced original stainless steel valves with Zhongguan valves, service life extended from 6 months to over 5 years.

Large Pharmaceutical Enterprise in Jiangsu: After switching to Zhongguan valve solutions across the entire line, maintenance frequency significantly reduced, product purity increased by 0.3%.

Our Factory Background

Zhejiang Zhongguan Valve Manufacture Co., Ltd. was founded in 2019 with a team of over 19 years of valve industry experience. Located in Oubei, Yongjia, Wenzhou, Zhejiang (the Hometown of Pumps and Valves). We have two production bases in Tianjin and Wenzhou.

Main products: Butterfly valves, gate valves, ball valves, check valves, strainers, control valves. Size range: DN40 to DN1600 (larger sizes available upon request).

Supply Chain Integration: North base focuses on cast iron materials. South base focuses on cast steel materials. We integrate the water valve supply chain (north) and industrial valve supply chain (south) to provide customers with richer product selection.