What are the recommended air compressor specifications?

Air compressor recommendations vary by model, ranging from 3 kw for smaller models to 22 kw for larger models like QBY3-125.

What industries can this pump be used in?

It is ideal for chemical analysis, photographic solution transfer, electrolytic processes, and handling highly corrosive fluids.

All-Plastic Metal-Free Pneumatic Dubble Diaphragm Pump

Name: All-Plastic Metal-Free Pneumatic Dubble Diaphragm Pump
Brand: Zhengzhou Grace Machinery Equipment Co., Ltd
SKU: 2272952785

Henan, ChinaZhengzhou Grace Machinery Equipment Co., Ltd

US$100.00-3,000.00

1 Piece

Sample price:US$150.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Quick

Warranty

12 Months

Model NO.

QBY3-25

Certification

ISO9001:2008, CE

Rated Current

Pneumatic

Voltage

Pneumatic

Material

Plastic

Power

Pneumatic

Valve Body Type

Diaphragm

Function

Solenoid Valve

Diaphragm Material

Polyvinylidene Fluoride

Performance

Corrosion

Max. Flow

22-1041 L/Min

Max. Head

70-84 M

Max. Suction Height

4-5.48 M

Outlet Pressure

7-8.4 Kg

Air Inlet

1/4-3/4 Inch

Max. Particle Size

1.5-9.4 mm

Transport Package

Carton Box

Specification

Trademark

Grace

Origin

China

HS Code

8413501090

Production Capacity

100000units/Year

Key features

All-Plastic Metal-Free Design: Constructed with PP or PVDF wetted parts, ideal for highly corrosive or metal-sensitive fluids.

Wide Flow and Pressure Range: Max flow up to 1041 L/Min and max head up to 84 M across various model sizes.

12 Months Warranty: Comprehensive 12-month warranty coverage with quick after-sales service support.

CE and ISO9001 Certified: Products meet ISO9001:2008 quality standards and hold CE certification for safety.

Versatile Industrial Application: Perfect for chemical analysis, photographic solution transfer, and electrolytic processes.

Flexible Customization Options: Supports customization from samples, designs, and minor adjustments for specific needs.

Company profile

Importers and ExportersProduct CertificationODM Services3D Software Design

Zhengzhou Grace Machinery Equipment Co., Ltd

Henan, China

Business Type: Manufacturer/Factory, Trading Company, Group Corporation CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2017-12-01Nearest Port: ShanghaiAverage Response Time: ≤1.33h

AI-Powered supplier vetting

SummaryZhengzhou Grace Machinery Equipment Co., Ltd. is a China-based limited company in Henan engaged in industrial equipment and components, with stated trading and manufacturing/factory activities. Its product range covers multiple centrifuge and filter-press types. The supplier reports ISO 9001 and CE certification and has an active CTI audit record, although the stated audit evaluation result is 0. Customization and ODM services are available, and OEM service for well-known brands is reported, but no new products were developed in the past year and no SDK is available. Quality and service controls show significant documentation gaps: no written corrective-action or complaint-handling procedures, unknown quality-assurance and traceability status, zero listed quality-control test equipment, and no written supplier-service assessment procedure. The supplier states customer-focused service and provides some supplier names, but the evidence does not establish specific customer cases. The reported employee count...

Supplier typeThe supplier is identified as a limited company in China and is described as a trading company, manufacturer/factory, and group corporation, although another record states it is not part of a larger company group. It operates in industrial equipment and components and reports two employees.

CertificationsThe supplier reports CE certification and ISO 9001 certification. A CTI audit record is shown as active from January 4, 2026 to January 3, 2027, but the audit evaluation result is recorded as 0, so the certification and audit evidence should be interpreted with that qualification.

After-Sales capabilityThe supplier has no written procedures or records for corrective and preventive actions, customer complaints, or effective service-capability assessment. It lists two qualified service suppliers and provides some supplier names, but these limited records do not demonstrate a controlled after-sales process.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization, as well as ODM service. These statements directly support broad customization availability.