What shipping methods do you offer?

Shipment by sea (FCL/LCL), air, or express courier (DHL, FedEx) available.

What should I do if I receive defective goods?

Send photos/videos of the issue. We'll analyze and offer a solution in 48 hours.

Do you offer spare parts or maintenance support?

Yes, spare parts and maintenance instructions for long-term partners provided.

Why choose your company?

Over 30 years of manufacturing experience ISO/CE/PED certified factory Fast response and professional technical support Reliable quality and competitive price

Self Operated Differential Pressure Control Dynamic Balancing Valve for HVAC Water Systems

Name: Self Operated Differential Pressure Control Dynamic Balancing Valve for HVAC Water Systems
Brand: Keep Promise Global (Xiamen) Holding Limited
SKU: 2269682235

Fujian, ChinaKeep Promise Global (Xiamen) Holding Limited

US$45.00-359.00

1 Piece

Product profile

Customization

Available

Material

Ductile Iron

Usage

Industrial and Water System

Model NO.

ZY47F-16Q

Application

Cooling/Heating System and HVAC Stystem

Media

Water,Oil

Color

OEM

Transport Package

Pallet and Carton

Specification

DN50-DN200

Trademark

OEM

Origin

Fujian, China

HS Code

8481804090

Production Capacity

500000pieces/Year

Key features

Automatic Pressure Regulation: Maintains constant pressure difference across HVAC pipelines without external power.

Durable Ductile Iron Body: Ensures reliable performance in large water circulation and industrial systems.

OEM Color Options: Color can be customized according to specific requirements.

ISO and CE Certified: Factory certified with ISO 9001, CE, and TS standards for quality assurance.

Fast Response Support: Professional technical support and replies provided within 24 hours.

Global Shipping Options: Shipment available via sea, air, or express courier like DHL and FedEx.

Flexible MOQ: Standard MOQ is 10-50 pieces with options for smaller trial orders.

Comprehensive Warranty: Defective goods analysis and solutions offered within 48 hours of reporting.

Company profile

Importers and ExportersFast DeliveryFlexible CustomizationR&D Capabilities

Keep Promise Global (Xiamen) Holding Limited

Fujian, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2020-03-01Nearest Port: XiamenAverage Response Time: ≤0.20hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF

AI-Powered supplier vetting

SummaryKeep Promise Global (Xiamen) Holding Limited is a China-based limited trading company established in 2021, focused on valves and reporting 10 employees. It states that it offers minor and flexible customization, OEM/ODM production, technical support, and a one-month order fulfillment time in both peak and off-peak seasons. However, the provided records show no available SDK, no management-system certification, no written corrective-action or complaint-handling procedures, and zero quality-control testing equipment. Financial records are indicated for 2022–2024, but no financial results or financial condition are provided. The supplier has an audit record by TUV Rheinland, but the stated evaluation result is 0, with no interpretation supplied. No customer cases or customer references are documented.

Supplier typeThe supplier is identified as a limited company and trading company headquartered in Xiamen, Fujian, China, with 10 employees and no stated affiliation with a larger company group. Its stated business scope includes general trading activities, while valves are identified as its primary product.

CertificationsNo supplier management-system certifications are recorded. Although a TUV Rheinland audit is listed with dates from December 8, 2025 to December 7, 2026, the audit evaluation result is stated as 0 and no certification or positive audit interpretation is provided.

After-Sales capabilityThe supplier describes technical support, but it has no written procedures or records for corrective and preventive actions or customer complaint handling. This directly indicates a documented after-sales process deficiency, despite the general service claim.

Production capacityThe supplier is classified as a trading company, and its product scope identifies valves, but no manufacturing capacity is documented. Production-control evidence is weak: quality-control testing equipment is listed as 0, while quality assurance and traceability status are unknown; the stated order lead time is one month in both peak and off-peak seasons.

Customization capabilityThe supplier explicitly reports minor customization and flexible customization capabilities and describes customized solutions and OEM/ODM production for valves. These statements provide direct evidence of customization availability, although they do not quantify the technical scope or manufacturing ownership of the service.