What industries is this valve applicable to?

It is mainly used in Building Material Shops and Manufacturing Plants, specifically for oil or geological exploration drilling rigs.

How is the quality of the product inspected?

We have 3 QA/QC inspectors who perform random visual and function inspections on finished products.

What is the weight of the Qf501A valve?

The weight of the Qf501A Two Vent Switch is 1.3 Kg.

Qf501A Pneumatic Control Valve Two-Way Ventilation Switch Valve

Name: Qf501A Pneumatic Control Valve Two-Way Ventilation Switch Valve
Brand: Weihai Zhonghao Pneumatic & Hydraulic Co., Ltd.
SKU: 2145930842

Shandong, ChinaWeihai Zhonghao Pneumatic & Hydraulic Co., Ltd.

US$22.00

1-10 Pieces

US$21.00

11-50 Pieces

US$19.00

51-100 Pieces

US$16.00

101+ Pieces

Product profile

Customization

Available

Type

Qf501A Two Vent Swich

Machine Type

Drilling Equipment

Model NO.

QF501A

Use

Well Drilling

Warranty

1 Year

Weight (Kg)

1.3

Product Name

"Qf501 Vent Switch"

OEM

OEM Services Provided

Applicable Industries

Building Material Shops, Manufacturing Plant

Transport Package

Carton

Specification

10*9*16

Origin

China

Production Capacity

30000/Years

Key features

OEM and ODM Service: Supports full customization from samples, designs, or complete OEM/ODM services.

Low MOQ Requirement: Minimum order quantity is only 1 unit, suitable for small batch testing.

Durable Construction: Composed of slide plate, valve seat, rotating shaft, and sealing elements for reliability.

Versatile Application: Ideal for pneumatic systems in oil and geological exploration drilling rigs.

Flexible Payment Terms: Accepts T/T, D/P, PayPal, and small-amount payments for buyer convenience.

Quality Assurance: 3 QA/QC inspectors perform random visual and function inspections on finished products.

Fast Lead Time: Off-season lead time is within 15 workdays; peak season within 1-3 months.

1-Year Warranty: Provides a 1-year warranty coverage for the Qf501A pneumatic control valve.

Company profile

High Repeat Buyers ChoicePatents AwardedNational Award receivedManagement Certification

Weihai Zhonghao Pneumatic & Hydraulic Co., Ltd.

Shandong, 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: 5 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤0.12h

AI-Powered supplier vetting

SummaryWeihai Zhonghao Pneumatic Complete Equipment Co., Ltd. is presented as an integrated pneumatic and hydraulic equipment supplier covering R&D, production, sales and after-sales service. It identifies itself as a professional technical supplier offering 3D software design and sample-, design-, and fully customized services. The company reports more than 15 years of industry experience and operation since 2007, along with ISO9001, CE and SGS-related certifications or reports. Evidence supports responsive technical and after-sales assistance, inventory capability, valid manufacturing contracts with associated subcontractors, and structured supplier-service procedures. However, it reported no new products during the past year, has no overseas warehouse or showroom, and provides no direct evidence of customer cases or financial credibility. Finished-product inspection instructions exist, but written inspection records are not maintained.

Supplier typeThe supplier is explicitly described as a professional technical supplier and as an integrated enterprise covering R&D, production, sales and after-sales service for pneumatic and hydraulic components. Its stated business scope also includes electronic, electromechanical, plastic, rubber and related equipment products.

CertificationsThe company states that it holds ISO9001 and CE certifications and has SGS reports to enhance product credibility. This is explicit evidence of certification-related holdings, although the slices do not provide certificate validity dates or detailed scopes.

After-Sales capabilityThe supplier describes pre-sales, in-sales and after-sales support through on-site service, video guidance and phone assistance, supported by senior technical engineers handling installation, commissioning and fault diagnosis. It also reports inventory capability, but lacks overseas warehouse and showroom capability.

Production capacityThe supplier presents itself as a manufacturer with production capabilities, valid contracts with each related subcontractor, inventory capability, and documented service-capability procedures with records. Finished-product inspection instructions exist but lack written records, which limits evidence of production-quality control execution.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs and full customization, and provides 3D software design services. Its technical team is also described as experienced in product design and production technology, supporting tailored solutions.