Reliable Municipal Water Valve: Lhs743X Low-Resistance Backflow Preventer

Name: Reliable Municipal Water Valve: Lhs743X Low-Resistance Backflow Preventer
Brand: Shanghai Zentif Valve Group Co., Ltd.
SKU: 1999035781

Shanghai, ChinaShanghai Zentif Valve Group Co., Ltd.

US$30.00-60.00

5 Pieces

Sample price:US$200.00/piece.Request sample

Product profile

Customization

Available

Media

Water

Temperature

Ordinary Temperature

Model NO.

LHS743X

Material

Cast Iron

Connection Form

Flange

Structure

Double Check with Relief Valve

Pressure

Ordinary Pressure

Function

Backflow Prevention and Water Supply Isolation

Sealing Form

Soft Sealing

Flow Direction

Unidirection

Standard

Application

Water Industrial Usage

Product Name

Low-Resistance Backflow Preventer

Model

Lhs743X

Valve Type

Backflow Preventer

Nominal Diametre

DN50-300

Nominal Pressure

Pn10-16

Working Temperature

0℃ ~ 80℃

Valve Body

Ductile Iron

Internal Component

Stainless Steel

Advantages-01

High Safety Backflow Protection

Advantages-02

Prevents Contamination & Water Hammer

Certification

GS, CE, ISO9001

Transport Package

Seaworthy Wooden Case

Specification

DN50-DN300

Trademark

Zentif

Origin

China

HS Code

8421199090

Production Capacity

50000

Key features

Dual-Check with Relief Valve: Provides multiple protection barriers and automatic drainage of the middle chamber.

Low Head Loss Design: Straight-through streamlined flow passage minimizes resistance and improves energy efficiency.

Durable Material Construction: Ductile iron body with stainless steel seats, stems, and springs for strength and corrosion resistance.

Automatic Backflow Prevention: Automatically prevents backflow and back-siphonage without external energy sources.

Multiple Certifications: Certified by GS, CE, ISO9001, FM, WRAS, SIL, and PED for global compliance.

Customization Available: ODM and OEM services available with customization from designs.

High Flow Capacity: Straight-through design supports high flow capacity for municipal and industrial use.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceIn-stock CapacityFast Delivery

Shanghai Zentif Valve Group Co., Ltd.

Shanghai, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Designs CertifiedExport Year: N/A CertifiedNearest Port: Shanghai PortAverage Response Time: ≤1.96h

About Our Factory & Business Background

AddressNo. 111 Huangjia Garden Road, Jiangqiao Town, Jiading District, Shanghai, China

Plant Area12819.22 square meters

Number of Employees81

Registered Capital55,484,089 RMB

Terms of PaymentLC, T/T, D/P, PayPal, Western Union, Small-amount payment

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Minimum Order Quantity500 PICS

Supply Chain Partners12

Our Production Capability & Technical Expertise

Main Productsangle valve

Production Lines5

Production MachinesCNC Lathe, Lathe, Shot Blasting Facility, Vertical Lathe

QA/QC inspectors3 people

Inspection Type for Finished Products100% inspection(Visual inspection & Function inspection)

Inspection Method for Finished ProductsHave instructions and uniformly followed

R&D Engineers2 people

Traceability of Raw MaterialsYes

Our Industry Experience & Global Business Record

Year of Establishment2001-03-20

Main MarketsDomestic

Repeat Buyers Choice50%~80%

Number of Foreign Trading Staff4

Overseas Agent/BranchNo

New Products Launched in Last yearNo

Our Certifications, Standards & Industry Recognition

Cooperated with Fortune 500No

Product Q&A

Q:How to select the right backflow preventer for water supply systems?

For potable systems, RPZ backflow preventers suit high-risk applications. Evaluate pipeline size, pressure, and hazard. Double check valves for lower risks; RPZ offers highest protection.

Q:Why are backflow preventers essential in municipal and building water systems?

Backflow preventers protect drinking water from contamination due to back pressure or siphonage. Required by municipal codes and high-rises, they ensure public health and prevent cross-connection risks.

Q:Can backflow preventers be used in fire protection systems?

Yes. Specialized preventers stop non-potable water from re-entering municipal supply, ensuring safety in compliance with fire protection and drinking water standards.

Q:How do backflow preventers improve safety in HVAC and industrial water systems?

Backflow preventers protect chilled, heating, and process water systems from reverse flow contamination, preserve water quality, prevent equipment corrosion, and ensure compliance with health and safety regulations.