What are the standard connection types?

The valve features precision-machined female NPT, BSPT, or BSPP threads for leak-proof connections with standard fittings.

What certifications does the product hold?

Our products adhere to ISO9001, ISO14001, ISO45001, EU Pressure Vessel Manufacturing License, and DNV Classification Society Certification.

What is the production capacity?

The production capacity is 10,000 PCS/Month, ensuring timely delivery for large orders.

Heavy-Duty Backflow Prevention Valve for 1-1/4 Inch Pipes

Name: Heavy-Duty Backflow Prevention Valve for 1-1/4 Inch Pipes
Brand: Xingsheng Mechanical Technology Co., Ltd.
SKU: 2223800135

Zhejiang, ChinaXingsheng Mechanical Technology Co., Ltd.

US$1.00

1 Piece

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Standard

ANSI, DIN, GB, JIS, GOST, BSW

Type

Loose Lap Flange

Model NO.

Check Valve

Material

Stainless Steel

Structure

Flanges

Connection

Welding

Sealing Surface

Manufacturing Way

Forging

Application Area

Petroleum, Chemical

Payment

Ttt or L/C

Delivery

25days

Producing Process

Billet-Cutting-Forging-Heating-Lathe-Drilling-Insp

Transport Package

Wooden Case

Specification

100.00cm * 50.00cm * 100.00cm

Trademark

Xing Sheng

Origin

Wenzhou, China

HS Code

7307210000

Production Capacity

100000

Key features

Premium 304 Stainless Steel: Resists corrosion, high pressure, and extreme temperatures for long-term reliability.

Space-Saving Vertical Design: Compact vertical inline structure fits tight spaces and reduces pressure loss.

Leak-Proof Thread Connection: Precision-machined female NPT/BSP threads ensure tight, leak-proof sealing.

Comprehensive Certifications: ISO9001, ISO14001, ISO45001, EU Pressure Vessel, and DNV certified.

Full Customization Service: Tailored solutions from samples, designs, or full customization available.

Free Sample Testing: Complimentary samples provided for testing purposes (shipping cost by client).

Custom Logo Branding: Free laser engraving or sticker logos available for brand presence.

100% Quality Inspection: Rigorous QA/QC including material analysis, tensile, and ultrasonic tests.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceManagement CertificationExperienced Team

Xingsheng Mechanical 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: 8 years CertifiedNearest Port: Ningbo portAverage Response Time: ≤1.04h

AI-Powered supplier vetting

SummaryThe supplier is a valve, plug, pump, vacuum-equipment, mechanical-parts, and metal-products manufacturer with independent operations under its business license. It demonstrates broad customization, R&D, ODM, OEM, design, welding, polishing, assembly, testing, and 3D-modeling capabilities. Production resources include forging, machining, surface treatment, 120 standard CNC lathes, and more than 10 high-precision Mazak and Doosan CNC lathes. The supplier holds ISO9001:2015, ISO45001:2018, ISO14001, CE, and other product certifications. It has documented supplier-management and finished-product inspection procedures, exports extensively, and reports repeat-buyer preference of 80%–100%. However, no overseas warehouse, showroom, agent, or branch is available, and no Fortune 500 cooperation is reported. Financial credibility cannot be assessed from the provided information because only covered years are listed, without financial performance or capacity details.

Supplier typeThe supplier operates as a manufacturer and trader in valves, plugs, pumps, vacuum equipment, mechanical components, and metal products. Its described forging plant, machining workshop, surface-treatment workshop, and extensive CNC equipment support classification as an industrial manufacturing supplier rather than only a trading intermediary.

CertificationsThe supplier reports CE and other product-compliance certifications, together with ISO9001:2015, ISO45001:2018, and ISO14001 management-system certifications. These stated certifications provide explicit evidence of formal quality, occupational-safety, and environmental-system coverage.

R&D capabilityThe supplier states that it had new products during the past year, provides ODM services, supports customization from samples and designs, and has technicians capable of producing drawings and 3D models. It also reports available SDK capability, providing explicit evidence of product-development and technical-design resources.

Production capacityProduction capability is supported by forging, machining, surface treatment, 120 150-type CNC lathes, more than 10 high-precision Mazak and Doosan CNC lathes, and equipment for cutting, die casting, welding, polishing, and drilling. The supplier also reports mass-production capability for standardized products and documented finished-product inspection instructions.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. Supporting capabilities include drawing and 3D modeling, welding, polishing, assembly, testing, and multiple processing methods, indicating broad customization coverage.

Client casesThe supplier reports providing OEM services to well-known brands and a repeat-buyer preference of 80%–100%. However, it reports no cooperation with Fortune 500 companies and does not identify specific customer names or project details, so customer-case strength is supported but limited in verifiability.