Do you offer OEM services?

Yes, OEM production is completed within 20-40 days after payment confirmation.

What is the warranty policy?

We provide lifetime service with spare parts at half price and 12-hour response for issues.

How is quality control handled?

All products are calibrated under real working conditions and tested before shipping.

Food Grade Stainless Steel Long Sight Glass

Name: Food Grade Stainless Steel Long Sight Glass
Brand: QILI HOLDING GROUP CO., LTD.
SKU: 840643395

Zhejiang, ChinaQILI HOLDING GROUP CO., LTD.

US$12.00-100.00

1 Piece

Sample price:US$20.00/piece.Request sample

Product profile

Customization

Available

Shape

Equal

Head Code

Square

Model NO.

QL-SG

Connection

Weld, Flange, Threaded, Clamped

Material

Stainless Steel

Size

1/2"-6"

Working Temperature

Normal Temperature (-20°c<T<120°c)

Work Pressure

MID-Pressure (2.5MPa< Pn <6.4MPa)

Length

15mm-200mm

Seal Form

Force Sealed

Transport Package

Export Standard Packing

Specification

DIN, SMS, ISO, IDF, RJT

Trademark

QL OEM&ODM

Origin

Wenzhou Zhejiang, China

HS Code

8418999990

Production Capacity

50000/Mouth

Key features

Food Grade Material: Made from SS304 or SS316L stainless steel with 100% material inspection.

Customizable Sizes: Available in sizes from 1/2 inch to 6 inch (DN25-150).

Multiple Glass Options: Choose from borosilicate, polycarbonate, or tempering glass lenses.

Wide Pressure Range: Handles MID-Pressure up to 10 bar with normal temperature operation.

Versatile Connections: Supports Weld, Flange, Threaded, and Clamped connection types.

International Certifications: Meets ISO, DIN, SMS, 3A, AS, BPE, IDF, and RJT standards.

Easy Maintenance: Compact design with easy assembly and cleaning features.

Lifetime Support: Lifetime service with spare parts available at half price.

Company profile

QILI HOLDING GROUP CO., LTD.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2006-01-01Nearest Port: Ningbo ,Shanghai,Shenzhen,QingdaoAverage Response Time: ≤24hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, EXW

AI-Powered supplier vetting

SummaryQILI HOLDING GROUP CO., LTD. is identified as a China-based manufacturer/factory with facilities in Wenzhou, Zhejiang. The supplied information indicates four production lines, 50 quality-control staff, 11–20 years of combined R&D-engineer experience, and reported annual production of 5,000,000 sanitary valve and fitting pieces. It holds ISO 9001 certification and describes multiple specialized workshops, including CNC machining, forming and polishing, hot forging, BPE fittings, and valve production. The company reports exporting to more than 60 countries since 2006, with exports representing 90% of total sales. It states that it provides design, manufacturing, sales, and after-service capabilities, although detailed after-sales procedures are not provided. Custom fitting production is explicitly mentioned. Available trade data records one transaction and one associated buyer, so customer-case evidence is limited.

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and operates in manufacturing from an address in Wenzhou, Zhejiang, China. However, one record also classifies the company nature as a trading company, creating a conflicting secondary classification.

CertificationsThe supplier is explicitly reported to hold ISO 9001 certification, providing direct evidence of a certified quality-management system.

After-Sales capabilityQILI states that its capabilities cover sales and after-service and that it provides service to customers. The slices do not specify service channels, response times, warranty terms, or repair processes, so the stated capability is positive but not operationally detailed.

R&D capabilityThe supplier has 11–20 years of combined R&D-engineer experience and operates specialized workshops including CNC machining, hot forging, and fittings production. These facts support technical development capability, although no specific patented products or quantified R&D achievements are provided.

Production capacityThe supplier reports four production lines, 50 quality-control staff, and annual output of 5,000,000 sanitary valve and fitting pieces. Its described eight professional workshops and stated pre-delivery quality checks provide direct evidence of substantial manufacturing and quality-control capacity.

Customization capabilityThe company explicitly describes an Anhui mass-production base with CNC machining and the ability to make custom fittings. This directly supports customization capability for fitting-related products.

Client casesThe supplier states that its products are exported to more than 60 countries and lists multiple export markets; one associated buyer, LES INSTRUMENTS PITANCO INC, and one trade transaction are also recorded. These references indicate international customer exposure, but the named customer evidence and transaction history are limited.