What materials are used for the diaphragm?

The diaphragm is made of a PTFE plus rubber composite for sealing with no leakage.

Chemical Dosing Pump Pressure Relief High-Performance PVC Safety Back Pressure Valve

Name: Chemical Dosing Pump Pressure Relief High-Performance PVC Safety Back Pressure Valve
Brand: Jinan Runway Automation Co., Ltd.
SKU: 1983566781

Shandong, ChinaJinan Runway Automation Co., Ltd.

US$22.00

10-49 Pieces

US$20.00

50+ Pieces

Product specifications

Nominal diameter

Sample price:US$18.00/piece.Request sample

Product profile

Customization

Available

Media

Acid/Base Liquid

Certification

Model NO.

186

Temperature

Ordinary Temperature

Connection

Welding

Pressure

Adjustable

Closed

Structure

Pulse

Material

PVC

Nominal Diameter

DN15

Filter Material

UPVC,PP,CPVC,PVDF

Diaphragm Material

PTFE + Rubber Composite

Connection Method

Adhesive Bonding, Hot Melt Welding, Threaded, Flan

Transport Package

Carton

Specification

18*20*10

Trademark

Origin

China

Production Capacity

9999

Key features

Adjustable Pressure Range: Safety valve adjustable 0-1.0 MPa; Back pressure valve 0-0.6 MPa.

Advanced Diaphragm Material: PTFE plus rubber composite ensures sealing with no leakage.

Water Hammer Reduction: Pulse damper minimizes vibration and maintains constant pressure.

Comprehensive Warranty: Standard 12 months or 2,000 hours; optional up to 36 months.

Global Technical Support: 24/7 assistance with spare parts supply and remote training.

Multiple Connection Options: Available in Adhesive Bonding, Hot Melt Welding, Threaded, and Flange.

System Stability Protection: Prevents siphoning and protects pump from overpressure operation.

Wide Material Compatibility: Filter materials include UPVC, PP, CPVC, and PVDF for acid/base liquids.

Company profile

Jinan Runway Automation Co., Ltd.Shandong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2019-02-27Nearest Port: QingDao, ShangHai, TianJinAverage Response Time: ≤1.75hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CIF, DDP, FCA, CFR

AI-Powered supplier vetting

SummaryJinan Runway Automation Co., Ltd. is identified as a China-based trading company and manufacturer/factory in Jinan, Shandong, with products focused on pumps, valves, fluid-control systems, and related components. The supplier reports ISO 9001 certification, more than 10 production lines, 21–30 quality-control staff, 6–10 years of R&D engineer experience, and stated annual capacities of 50,000 valves and 10,000 gear pumps. It has exported since 2019, serves several international regions, and reports one-month off-peak and two-to-three-month peak lead times. The information supports production, quality-management, export, and customization capabilities, while after-sales service, financial credibility, and customer-case evidence remain insufficiently documented.

Supplier typeThe supplier is explicitly classified as both a trading company and manufacturer/factory. Its materials describe manufacturing and R&D of transmission-control components, while another slice identifies it as the foreign-trade sales company of Shandong Shijing Machinery; the legal-name information is therefore not fully consistent across the supplied records.

CertificationsThe supplier explicitly reports holding ISO 9001 certification for its management systems. No certification scope, certificate number, issuing body, or validity period is provided.

R&D capabilityThe supplier reports 6–10 years of R&D engineer experience, a design and R&D team, advanced production and testing equipment, and a focus on producing and developing transmission-control components. These statements provide explicit support for R&D capability, although no patents, proprietary technologies, or quantified R&D investment are supplied.

Production capacityThe supplier reports more than 10 production lines, 21–30 quality-control staff, and annual capacities of 50,000 valves and 10,000 gear pumps. It also states lead times of one month in off-peak periods and two to three months in peak periods, supporting an established production operation.

Customization capabilityThe supplier explicitly offers customized processing services and states that its technical and sales teams provide feasible fluid-control solutions. This directly supports customization capability for its pumps, valves, fluid-system accessories, and related components.

Product Q&A

Q:What documents do you provide for export?

Complete export package (Invoice, Packing List, Bill of Lading, COC, etc.).

Q:How do I place an order?

Email/phone us for a quote, confirm with PO.

Q:How to adjust the back pressure valve?

Never exceed the maximum working pressure of the metering pump. Ensure discharge pressure is at least 1 bar higher than suction pressure.

Q:How to set the pressure of the safety valve?

Adjust within the rated working pressure range. Set pressure should be 1-2 bar higher than the back pressure valve, never exceeding the pump's max pressure.

Q:What is the warranty period?

Standard warranty is 12 months or 2,000 operating hours, whichever comes first. Extended warranty up to 36 months is optional.