What certifications does the company hold?

The company holds ISO9001, TS, ISO14001, GB/T28001, and CE certifications.

What materials are used for the valve body?

Valve body materials include Ductile Iron, carbon steel, and stainless steel.

What is the main application field for these valves?

They are widely used in alkalies & acid industries, water treatment, pulp & paper, mining, energy, oil & gas, fertilizer, and pharmaceutical industries.

Long Service Life Durable Build PTFE Lined Diaphragm Valve

Name: Long Service Life Durable Build PTFE Lined Diaphragm Valve
Brand: Naifulong Group Co., Ltd.
SKU: 2278303435

Zhejiang, ChinaNaifulong Group Co., Ltd.

US$10.00-5,000.00

1 Set

Product profile

Customization

Available

Media

Acid

Temperature

Ordinary Temperature

Model NO.

custom

Actuator

Electric

Connection

Flanged Diaphragm Valve

Material

Stainless Steel

Pressure

Low Pressure

Function

Solenoid Valve

Usage

Safety

Standard

DIN, GB, ANSI

Specification

Customizable

Trademark

OEM

Origin

China

Key features

PTFE Lined Durability: Constructed with PTFE lining for superior anti-corrosion performance in harsh chemical environments.

Certified Manufacturer: ISO9001, TS, ISO14001, and GB/T28001 certified national high-tech enterprise with 40+ patents.

Customization Support: ODM and OEM services available with customization options from customer samples.

Wide Application Range: Suitable for acid/alkali, pharmaceutical, petroleum, and power industries requiring safety valves.

Global Export Experience: 18 years of export experience with partnerships in Europe, Southeast Asia, and South America.

Strict Quality Control: 100% visual and function inspection by 12 QA/QC inspectors with full raw material traceability.

Advanced Manufacturing: Equipped with CNC, injection, and welding facilities in a 42,000 sq.m. digitalized production base.

Flexible Payment Terms: Accepts LC and T/T payment terms with FOB, CIF, CFR, and EXW international commercial terms.

Company profile

Importers and ExportersPatents AwardedExhibition ExperienceHigh Repeat Buyers Choice

Naifulong Group Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 18 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤0.01h

AI-Powered supplier vetting

SummaryThe supplier is a Zhejiang-based high-tech manufacturer focused on pumps, vacuum equipment, valves, hardware, metal products, and industrial automation components. It reports over 40 patents, recent new-product development, ODM services, and OEM work for well-known brands. Production is supported by machining, injection, CNC, welding, and pipe-machining facilities, 12 quality inspectors, documented finished-product inspection instructions, and valid contracts with associated subcontractors. Quality and sustainability systems include ISO9001:2015, ISO45001:2018, and ISO14001 certifications, while regular fire drills were conducted during the past year. The supplier has 18 years of export experience, with exports representing 51%–70% of total sales, and has participated in the Russian PVC Exhibition. However, it reports no SDK, inventory, overseas warehouse, overseas showroom, overseas agent or branch, and zero countries with overseas service coverage. Financial records are identified for 2023–2025, but no...

Supplier typeThe supplier identifies itself as a national high-tech enterprise, Zhejiang Made unit, and specialized and sophisticated enterprise. Its stated business scope covers manufacturing, pumps and vacuum equipment, valves and plugs, hardware, metal products, and industrial automation products, indicating a diversified industrial equipment manufacturer.

CertificationsThe supplier reports ISO9001:2015, ISO45001:2018, and ISO14001 management-system certifications. It also reports other product-compliance certification, but the specific standard is not identified, so the assessment is supported primarily by the named management-system certificates.

After-Sales capabilityThe supplier reports no in-stock service capability, overseas warehouse, overseas showroom, overseas agent, or overseas branch, and lists zero countries where overseas services are offered. These stated limitations indicate weak overseas after-sales and local-service coverage.

R&D capabilityThe supplier reports more than 40 patents, including multiple national patents, and states that it developed new products during the past year. It also provides ODM and OEM services, although it explicitly reports no available SDK.

Production capacityProduction evidence includes valid manufacturing-capacity contracts with associated subcontractors, machining, injection, CNC, welding, and pipe-machining facilities, 12 quality inspectors, documented inspection instructions, and a one-month peak-season lead time. The supplier also reports 12 qualified service-capability suppliers and written procedures with follow-up records, supporting substantial production and quality-management capability.

Customization capabilityThe supplier reports customization from samples, ODM services, and OEM services for well-known brands. These statements directly support the ability to deliver customer-specific products and manufacturing solutions.