What is the warranty period for the products?

We provide a quality guarantee period of 6 to 12 months, depending on the customer's frequency of use.

Are free samples available?

Sample availability depends on the specific product requested. Since we have hundreds of products, please contact us directly for a particular answer regarding samples.

What materials are used for these pipe fittings?

Our fittings are made from high-quality stainless steel, including SS201, SS304/CF8, SS316/CF8M, 304L, and 316L.

Stainless Steel NPT Square Plug

Name: Stainless Steel NPT Square Plug
Brand: Zhejiang Yuzheng Valve Technology Co., Ltd.
SKU: 817140995

Zhejiang, ChinaZhejiang Yuzheng Valve Technology Co., Ltd.

US$1.00

20-29 Pieces

US$0.90

30-49 Pieces

US$0.80

50+ Pieces

Product profile

Customization

Available

Material

Stainless Steel

Connection

Thread

Model NO.

YZV456

Description

Pipe Fittings

Thread End

NPT\BSPT\BSPP

OEM

Available

MOQ

20PCS

Certificate

ISO9001, Ce, CIQ, SGS

Other Name

Bushing

Shipment Time

Within 25days

Sample

Available

Transport Package

Carton, Plywood Case

Specification

1/4"~4"

Trademark

YUZHENG

Origin

Wenzhou, Zhejiang, China

HS Code

7307290000

Production Capacity

100, 000.00 Pieces/Week

Key features

Customizable Thread Ends: Supports NPT, BSPT, and BSPP thread ends to meet specific piping requirements.

OEM Service Available: We accept OEM orders, including printing logos and manufacturing based on customer drawings.

High-Quality Materials: Made from SS304, 304L, 316, and 316L stainless steel for durability and corrosion resistance.

Flexible MOQ: Minimum order quantity is just 1 piece, allowing for small batch testing and cooperation.

Strict Quality Control: 100% inspection of finished products by professional inspectors to ensure every item is qualified.

Wide Application Range: Suitable for water, oil, and corrosive liquids with a temperature range of -20 to 200 degrees C.

Certified Manufacturer: ISO9001, CE, CIQ, and SGS certified factory with over 10 years of manufacturing experience.

Fast Delivery Options: Standard lead time is around 25-30 days, but can be reduced to 15 days if products are in stock.

Company profile

Importers and ExportersYears of Export Experience

Zhejiang Yuzheng Valve Technology Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 13 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤3.21h

AI-Powered supplier vetting

SummaryThe supplier demonstrates export experience, broad customization and OEM/ODM capability, inventory capacity, valid manufacturing contracts, and ERP-based process management. It holds ISO9001:2015 and CE certifications and reports 90% of sales from exports, with a stated 13 years of exporting experience. However, after-sales governance is weakly documented: no written complaint-handling, corrective/preventive-action, or service-capability assessment procedures were provided. Innovation evidence is limited because no new products were reported in the past year and no SDK is available. Overseas service coverage is also limited, with no overseas warehouse, showroom, agents, branches, or reported service countries. Customer evidence includes OEM service for well-known brands, participation in a Russian exhibition, and a reported repeat-buyer preference of 50%–80%, but no Fortune 500 cooperation.

Supplier typeThe supplier provides manufacturing and design services, including sample, design, full, minor, and flexible customization, as well as OEM for well-known brands and ODM services. It also reports inventory capacity and valid contracts with associated subcontractors, indicating a manufacturer or manufacturing-integrated supplier profile.

CertificationsThe supplier reports an ISO9001:2015 management-system certificate and CE product compliance certification. These explicitly demonstrate documented certification holdings, although the slices do not specify product scope, validity dates, or issuing bodies.

After-Sales capabilityThe supplier has no written procedures or records for complaint handling, corrective and preventive actions, or effective service-capability assessment. It also lacks overseas warehouses, showrooms, agents, and branches, although it can provide multiple quotation and payment terms and has inventory capacity.

Production capacityThe supplier reports inventory capacity, valid contracts with each associated subcontractor, one-month lead times in both peak and off-season periods, and ERP-supported production and quality-control processes. Finished products are checked by packing staff, but no formal service-capability assessment procedure or records were provided.

Customization capabilityBoth design-service and R&D-related entries list customization from samples, designs, full customization, minor customization, and flexible customization. The supplier also states that ODM services are available, providing explicit evidence of broad customization coverage.

Client casesThe supplier reports OEM service for well-known brands, participation in a Russian offline exhibition, and a repeat-buyer preference of 50%–80%. It reports no cooperation with Fortune 500 companies, and the slices do not identify customer names or specific completed projects.

Product Q&A

Q:Are you a factory or trading company?

We are a factory specialized in manufacturing valves and fittings with over 10 years of experience. We hold ISO9001 certification and ECM compliance verification for ball valves.

Q:What is your minimum order quantity (MOQ)?

Our MOQ is very flexible. We can accept orders as small as 1 piece to build long-term business relationships based on quality and competitive pricing.

Q:Can you provide OEM services or print our logo?

Yes, we fully support OEM services. We can print your logo on the valves and manufacture products according to your specific drawings or special requests.

Q:What is the lead time for production?

The standard lead time is around 25 to 30 days. However, if the products are already in stock, the delivery time can be shortened to approximately 15 days.

Q:How do you guarantee product quality?

We use numerical control devices for accurate manufacturing. Additionally, our quality inspectors perform 100% inspection on every valve or fitting to ensure they are qualified before sale.