What is the Minimum Order Quantity (MOQ)?

The MOQ is 1 PCS, which is welcome for starting cooperation.

Can you provide free samples?

Free samples are provided for the first cooperation under sincere cooperation terms.

What documents are available for materials?

Material certificate, mill certificate, pressure testing certificate, roughness certificate, measure certificate, and RT certificate are available upon request.

Joneng Hastelloy Food Equipment Threaded Inline Viewing Sight Glass (JN-SG 1003)

Name: Joneng Hastelloy Food Equipment Threaded Inline Viewing Sight Glass (JN-SG 1003)
Brand: Wenzhou Joneng Valves Co., Limited
SKU: 893470705

Zhejiang, ChinaWenzhou Joneng Valves Co., Limited

US$20.00

1-19 Pieces

US$19.00

20-49 Pieces

US$17.00

50-99 Pieces

US$15.00

100+ Pieces

Sample price:US$20.00/piece.Request sample

Product profile

Customization

Available

Body Material

SS304, SS316L

Sealing Material

Silicone, EPDM, Viton, PTFE, or NBR

Model NO.

JN-SG 1003

Qualified Certificate for Seal

FDA

MOQ

1PCS

Raw Material

Forging or Casting

Processing Machine

LG Mazak CNC Machine

Inner Surface Finish

Ra 0.5

External Surface Finish

Ra 0.8

Transport Package

Wooden Case

Specification

1"-4"

Trademark

JONENG

Origin

Wenzhou, China

HS Code

8481804090

Production Capacity

3000PCS/Month

Key features

Multi-Standard Compliance: Meets ISO, DIN, SMS, 3A, AS, BPE, and BAS4825 standards for global compatibility.

Premium Material Options: Available in SS304 or SS316L with customizable sealing materials like Silicone, EPDM, or PTFE.

High Precision Finish: Inner surface finish Ra 0.4-0.5 and external Ra 0.8, ideal for food and pharmaceutical industries.

Flexible Glass Lens: Choose from boro-silicate, polycarbonate, or tempering glass based on specific pressure and safety needs.

Fast Delivery Time: 7-10 days for urgent requirements and normal products; 15-25 days for bulk orders.

Low MOQ for Testing: Minimum Order Quantity is just 1 PCS, allowing easy testing and small batch production.

3-Year Warranty: Comprehensive 3-year warranty on stainless steel products, excluding gaskets and easy-broken parts.

100% Quality Inspection: Strict 100% material inspection and pressure testing before shipment to ensure zero defects.

Company profile

High Repeat Buyers ChoiceIn-stock CapacityQuality AssuranceR&D Capabilities

Wenzhou Joneng Valves Co., Limited

Zhejiang, China

Business Type: Manufacturer/Factory CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 9 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤2.01h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier is an export-oriented manufacturer with stated production capacity for valves, pipe fittings, unions, and manhole covers, supported by two production lines, CNC turning equipment, and six to ten quality-control staff. It holds ISO 9001:2015 and ISO 14001:2015 certifications, and reports documented procedures for corrective and preventive actions and customer complaints. The supplier offers broad customization from samples and designs, but reports no new products in the past year, no ODM service, no SDK, and only one year of R&D-engineer experience. It has inventory capability and contracts with associated subcontractors, but no overseas warehouse, showroom, agent, or branch. Financial information is limited to year references, so financial credibility cannot be determined. No customer cases are provided.

Supplier typeThe supplier presents itself as a manufacturing company producing manhole covers, butterfly valves, pipe fittings, unions, and diaphragm valves. It operates two production lines, uses a CNC lathe, has inventory capability, and holds valid manufacturing contracts with associated subcontractors; its exports account for 51%–70% of total sales and it has nine years of export experience.

CertificationsThe supplier reports ISO 9001:2015 and ISO 14001:2015 certificates. These certifications cover quality and environmental management systems, and the supplier also reports a sustainable-development management system certification listing the same standards.

After-Sales capabilityThe supplier has documented and followed procedures for corrective and preventive actions and for handling customer complaints. It also reports in-stock service capability, but has no overseas warehouse, overseas showroom, agent, or branch, and lists zero countries with overseas services; therefore, documented support exists while overseas service coverage is limited.

R&D capabilityThe supplier reports no new products during the past year, no ODM service, no available SDK, and total R&D-engineer experience of one year. These statements indicate limited demonstrated innovation resources and output in the provided evidence.

Production capacityThe supplier reports product-specific annual capacities of 12,000 manhole covers, 50,000 butterfly valves, 150,000 pipe fittings, 150,000 unions, and 15,000 diaphragm valves, supported by two production lines, CNC turning equipment, six to ten quality-control staff, inventory capability, and valid subcontractor contracts. However, finished products are checked by packing staff, which describes the inspection arrangement but does not by itself establish a deficiency.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, flexible customization, and minor customization. This capability is stated consistently in both the R&D/design-service information and the production information.

Product Q&A

Q:Are you a trading company or a factory?

We are a manufacturer factory with our own exporting license.

Q:What certifications do you have?

We hold ISO, FDA, LFGB, CE, and PED certificates, along with some design patents.

Q:How do you control product quality?

We use 3 spectro PMI machines for raw material checks, pressure testing, and roughness spectors. Two staff inspect during production, and five staff inspect finished products to prevent shortages or mixing.

Q:What is the warranty period?

We provide a 3-year warranty for all stainless steel products. Gaskets and easy-broken parts are excluded due to varying customer applications.

Q:What is the delivery time?

Normal products take 7-10 days. Bulk orders take 15-25 days, depending on the order size.