Does the manufacturer offer OEM services?

Yes, OEM and ODM services are available.

What is the color of the needle seal?

The needle seal is available in Black.

228-78538-41 Needle Seal for Xr, Tp; Sil-20 - 40 Series, I-Series

Name: 228-78538-41 Needle Seal for Xr, Tp; Sil-20 - 40 Series, I-Series
Brand: Dongguan Walle Sealing Technology Development Co., Ltd.
SKU: 1964786701

Guangdong, ChinaDongguan Walle Sealing Technology Development Co., Ltd.

US$70.00-100.00

5 Pieces

Product profile

Customization

Available

Structure

Round Jacket+Spring

Pressure

High Pressure Mechanical Seals

Speed

General Speed Mechanical Seal

Temperature

Temperature Mechanical Seal

Performance

High Pressure

Standard

Standard, Nonstandard

Type

HU21

Color

Black

Delivery Time

20-35 Days

Medium

Chemical Liquid

Application

HPLC Pump

Transport Package

Carton

Specification

per your request

Trademark

Walle

Origin

Guangdong, China

HS Code

3926901000

Production Capacity

100, 000PCS/Month

Key features

Vespel Material Construction: Made from durable Vespel material suitable for harsh sealing environments.

High Pressure Performance: Designed for high pressure mechanical seal applications in HPLC systems.

Extended Replacement Interval: Recommended replacement interval is 40,000 injections for optimal performance.

OEM Equivalent Compatibility: Equivalent to OEM Part Number 700002760 and compatible with Waters HPLC systems.

Custom Color Options: Available in Black color to match specific instrument requirements.

Chemical Liquid Resistance: Suitable for GPC mobile phases containing tetrahydrofuran (THF) and chloroform.

Mass Production Capability: Manufactured by a factory with years of experience in various sealing environments.

OEM and ODM Services: OEM and ODM services available for customized sealing solutions.

Company profile

Dongguan Walle Sealing Technology Development Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2010-08-02 CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤18h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryDongguan Walle Sealing Technology Development Co., Ltd. is a China-based limited company classified as a trade company, associated with the manufacturing industry and focused on sealing products. It reports ISO9001 certification, five production lines, a 2,000 m² plant, 27 employees, and stated annual output of 2,000,000 boxes of rubber seals, oil seals, and O-rings. The supplier exports extensively, with 71%–90% of sales from exports and markets across multiple regions. It supports OEM orders and describes engineering research, technological innovation, advanced production and testing equipment, and sealing solutions for numerous industries. Order fulfillment is stated as one month in both peak and off-peak periods. Evidence is insufficient to assess after-sales service depth, financial credibility, or specific customer cases. The records also contain inconsistent experience claims: one slice states three years of R&D engineer experience, while another claims over 20 years of production and R&D staff...

Supplier typeThe supplier is identified as a limited company in China, classified as a trade company, with associated companies in manufacturing and operations centered on sealing-product development and production. Its stated commercial categories include industrial equipment, machinery, tools, automotive parts, and manufacturing-related products.

CertificationsThe supplier explicitly reports an ISO9001:2015 certificate. Another description references ISO9001:2008, but the records do not clarify whether this is an older certificate or a separate status; the current explicit certification evidence is ISO9001:2015.

R&D capabilityThe supplier explicitly describes engineering research, technological innovation, multiple sealant formulations, advanced production and testing equipment, and the use of materials and technology for demanding environments. The evidence supports stated innovation activity, although the record also reports only three years of total R&D engineer experience and does not provide patents or quantified R&D results.

Production capacityThe supplier reports a 2,000 m² manufacturing plant, five production lines, 27 employees, and annual output of 2,000,000 boxes of rubber seals, oil seals, and O-rings. It states one-month fulfillment during both peak and off-peak periods and describes production of seals for multiple industrial applications, providing explicit evidence of operational production capacity.

Customization capabilityThe supplier welcomes OEM orders and states that it develops varied sealing formulations and solutions using different materials and technologies for demanding operating environments. Its broad product range includes synthetic rubber, PTFE, hydraulic, cylinder, PU, FKM, perfluoroelastomer, oil and gas, chemical, pump, and valve seals, supporting customization capability.