6.How long is the warranty, and what does it cover?

We offer a 2 year warranty against manufacturing defects (material, casting, threading defects). It does not cover damage from improper installation, corrosion due to incompatible fluids, or normal wear. Replacements are free within the warranty period.

7.Can you provide custom sizes, materials (e.g., low lead brass, naval bronze), or private labeling?

Yes, we support custom orders: non standard dimensions (up to 4"), special alloys (e.g., C83600 bronze, low lead brass), and logo/brand engraving on the body or tag. Minimum custom quantity is usually 1000 pcs. Provide your drawing or specification for a quotation.

High Quality Cast Bronze Dynamic Balance Valve with Threaded Ends for Hydronic System Balancing Valves

Name: High Quality Cast Bronze Dynamic Balance Valve with Threaded Ends for Hydronic System Balancing Valves
Brand: Ninghai Raising Copper Industry Co., Ltd.
SKU: 2317333845

Zhejiang, ChinaNinghai Raising Copper Industry Co., Ltd.

US$5.00

1,000 Pieces

Product profile

Customization

Available

Media

Water

Temperature

Ordinary Temperature

Model NO.

NR-Y001

Material

Bronze

Connection Form

Thread

Structure

Y Struction

Function

Anti-Backflow, Filtration, Pressure Stabilization

Sealing Form

Gland Packings Globe Valve

Flow Direction

Unidirection

Standard

Application

Industrial Usage, Water Industrial Usage, Household Usage

Size

1/2" 3/4" 1"

Technique

Forged

Name

Brass Spring Check Valve

Color

Brass Natural Color

Valve Body Material

Brass / Bronze

Seal Material

EPDM / PTFE

Applicable Medium

Cold & Hot Water

Installation

Horizontal & Vertical Mounting

Surface Finish

Polished & Cleaned

Optional Service

OEM Customization

Flow Capacity

Low Fluid Resistance

Valve Body Process

Precision Forging

Product Inspection

100% Pressure Test

Operation Mode

Automatic Operation, No Manual Control

Surface Treatment

Anti-Oxidation Coating

Transport Package

Export Standard Packing

Specification

1/2" 3/4" 1"

Trademark

NRCI

Origin

Zhejiang, China (Mainland)

HS Code

8481804090

Production Capacity

50000 Piece/Pieces Per Month

Key features

Adopt premium brass /bronze & lead-free copper material, anti-corrosion and anti-dezincification

Lead-free formula, compliant with potable water standards, safe and eco-friendly

Precision machining with standard thread, excellent compatibility for installation

Optimized sealing structure, tight shut-off performance with zero leakage

1. Built-in stainless steel strainer screen to efficiently trap pipeline impurities

Stable pressure regulation for pressure reducing valve, reliable constant pressure performance

Accurate flow adjustment for balancing valve, convenient for hydraulic system commissioning

Supports horizontal & vertical multi-direction installation with flexible layout

Smooth fluid passage, low flow resistance to reduce system energy consumption

Wide pressure & temperature resistance, suitable for HVAC, water supply and industrial systems

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperiencePatents Awarded

Ninghai Raising Copper Industry Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 23 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤4.84h

AI-Powered supplier vetting

SummaryNinghai Raising Copper Industry Co., Ltd. is a Chinese limited company established in 2002, operating in copper-product, hardware, machinery, and equipment manufacturing. It reports eight production lines, facilities including CNC machining and machining centers, and annual brass and bronze valve and fitting output of 600 tons. The supplier exports to multiple regions, with exports representing 90% of total sales and 23 years of export experience. It provides OEM and ODM services, has introduced new products within the past year, and offers extensive customization. Service controls include written procedures and records for supplier assessment, corrective and preventive actions, and complaint handling. However, no certifications, overseas warehouses, showrooms, agents, or branches are identified. The supplier also reports no available SDK, limited export-trade staffing, and no ongoing batch quantity reconciliation. Financial records are indicated for 2022–2024, but their credibility cannot be assessed...

Supplier typeThe supplier is identified as Ninghai Raising Copper Industry Co., Ltd., a Chinese limited company established in 2002. Its stated business scope covers manufacturing and processing copper products and hardware, as well as research, development, and manufacturing of machinery and equipment.

After-Sales capabilityThe supplier has written procedures and followed records for complaint handling, corrective and preventive actions, and supplier service-capability assessment. It accepts multiple quotation and payment terms and reports one-month lead times, but has no overseas warehouse, showroom, agent, or branch support.

R&D capabilityThe supplier reports new products within the past year, provides ODM services, and conducts research and development related to machinery and equipment. However, it has no available SDK, so its software-development or integration capability is explicitly limited.

Production capacityProduction resources include cutting, punching, shot blasting, CNC machining, and machining-center facilities, with eight production lines and reported output of 600 tons of brass and bronze valves and fittings. Finished-product inspection instructions are uniformly followed, although the factory does not continuously reconcile quantities for each batch or production lot.

Customization capabilityThe supplier explicitly offers customization from samples and designs, full customization, minor customization, and flexible customization. It also provides both OEM and ODM services, indicating broad product-development and customization coverage.

Client casesThe supplier states that it provides OEM services for well-known brands and has participated in the Saudi Arabia International Trade Show. It exports to a broad range of markets and reports 23 years of exporting, but no named customer cases or verifiable project details are supplied.

Product Q&A

Q:1. What is the difference between bronze and brass valves/fittings, and which one should I choose for water applications?

Bronze offers higher corrosion resistance, especially in saltwater or high pressure steam systems. Brass is more cost effective and works well for potable water, HVAC, and low pressure applications. For standard fresh water systems, brass is common; for marine, chemical, or high temperature environments, choose bronze.

Q:2. Are your brass and bronze valves certified for drinking water systems?

Yes. Our brass valves and fittings comply with lead free standards (less than 0.25% lead content). Bronze products are also available with WRAS certification upon request. Please check product specifications or contact us for a specific certification document.

Q:3. Do your products use NPT, BSP, or BSPT threads? Are adapters available?

We offer both NPT (National Pipe Thread) and BSP/BSPT (British Standard Pipe) options. Please specify your required thread standard when ordering. Thread adapters are also available to convert between NPT and BSP systems.

Q:4.Are these bronze and brass valves suitable for natural gas or propane applications?

Yes, many of our brass valves (e.g., ball valves, gas cocks) are rated for natural gas and propane. They meet UL safety standards. Bronze valves can also be used but are more common in liquid service. Always check the product marking "WOG"indicates water/oil/gas service.

Q:5.What quality standards and testing do your products undergo?

All valves and fittings are manufactured according to ASTM B62 (bronze), ASTM B16 (brass), ASME B16.15, and MSS SP 80. Each unit is hydrostatically tested (100% of rated pressure) and air tested for leakage. We also provide material test reports (MTR) upon request.