What is your lead time?

It's around 30 days normally. If we have the products in stock, it will be about 15days

How can I check your factory situation while it's difficult for me to come to China?

We have photos and videos on our website and facebook, It shows every step of the manufacturing. We also have a showroom in CA, USA. If you have time, you can take a look.

How can you guarantee the quality of products?

First of all, we have the numerical control device to manufacture products accurately. Then our quality inspectors will test products one by one to make sure every valve or fitting we sell is qualified.

How long is the quality guarantee period?

We supply 6 to 12 months for quality guarantee according to customers' using frequency.

304# Stainless Steel NPT Check Valve Manufacturer

Name: 304# Stainless Steel NPT Check Valve Manufacturer
Brand: Zhejiang Yuzheng Valve Technology Co., Ltd.
SKU: 779040415

Zhejiang, ChinaZhejiang Yuzheng Valve Technology Co., Ltd.

US$3.00

20-39 Pieces

US$2.80

40-49 Pieces

US$2.50

50+ Pieces

Product profile

Customization

Available

Material

Stainless Steel

Connection Form

Thread

Model NO.

NPT Check Valve

Structure

Swing

Pressure

Ordinary Pressure

Function

Non Returned

Sealing Form

Metal Hard Sealed

Flow Direction

Unidirection

Standard

ANSI

Application

Industrial Usage, Water Industrial Usage, Household Usage

Description

NPT Check Valve

Size

1/2"~4"

Package

Inner Box / Master Carton/ Wooden Case

Shipment Time

Within 25days

MOQ

20PCS

OEM Service

Workable

Medium

Water, Oil and Some Corrosive Liquid

Transport Package

Inner CTN, Outside Plywood Case

Specification

1/2"~4"

Trademark

YUZHENG

Origin

Zhejiang

HS Code

848180

Production Capacity

100, 000PCS Per Week

Key features

Premium Material Options: Available in SS201, SS304, 304L, 316, and 316L stainless steel.

Wide Size Range: Sizes from 1/2 inch to 4 inch (DN6 to DN100) available.

High Pressure Capacity: Rated for working pressure up to 1000 PSI (6.4 MPa).

Customization Services: OEM and ODM services available with logo printing and design customization.

Fast Delivery: Standard lead time around 25-30 days; 15 days for stock items.

Low MOQ: Minimum order quantity starts from 1 piece.

Quality Assurance: 100% inspection including visual and functional checks by dedicated inspectors.

Global Market Reach: Exporting to North America, South America, Europe, Middle East, and Asia.

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: ≤2.52h

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 over 10 years. And we have got the verification of compliance for ball valve from ECM and ISO9001 certificate of manufacturing and processing of valves and fittings.

Q:Where are the main markets for your products?

We hope to make business with companies from all over the world. And for now, our valves and fittings have been exported to especially in North America, South America, South Asia, Europe and Middle East.

Q:Do you have a minimum quantity of the products?

No, we will build business with you with even 1pc. We believe this cooperation will be a long-term relationship for our high quality, competitive price and good after-sale service.

Q:Are samples available to be sent with free?

It depends on what product you need. There are hundreds of products we sell. You can contact us for particular answer.

Q:Can you print our Logo on the valves?

Yes, we can totally produce products according to your special request, even manufacture it base on your drawing.