What is the input signal for this device?

The device receives a DC current signal of 4-20mA from the controller.

What is the working temperature range?

The working temperature range is -20 to 70 degrees Celsius.

4~20mA Rotary Pneumatic Valve Positioner L8a-100 Series Linear

Name: 4~20mA Rotary Pneumatic Valve Positioner L8a-100 Series Linear
Brand: Zhejiang Hearken Flow Equipment Co., Ltd.
SKU: 2102119695

Zhejiang, ChinaZhejiang Hearken Flow Equipment Co., Ltd.

US$80.00

1-99 Pieces

US$75.00

100+ Pieces

Sample price:US$86.00/piece.Request sample

Product profile

Customization

Available

Brand

Hearken

Power

Pneumatic

Model NO.

L8a-100

Adjusted Form

Regulated Type

Working Type

Rotary

Pressure

Medium Pressure

Work Temperature

-20~70°c

Material

Aluminum

Customized

Non-Customized

Input Signal

4~20mA

Air Source Interface Size

PT(NPT) 1/4

Type

Dual Acting /Single Acting

Protection Class

IP66

Stroke

0~90º

Production Capacity

10000 Per Month

Key features

Precise Control: Receives 4-20mA signal to precisely control valve opening via pneumatic actuator.

Quality Guarantee: 18 months guarantee with strict quality control and testing before delivery.

Fast Response: Quotation provided within 24 hours of inquiry; urgent calls accepted.

Manufacturer Direct: Own factory and production line with experienced team for customization.

On-time Delivery: Regular production and stock ensure timely delivery within 15-20 days.

Free Samples: Free sample products available; customer only bears freight cost.

Company profile

Zhejiang Hearken Flow Equipment Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2017-10-18Nearest Port: Ningbo / Shanghai PortAverage Response Time: ≤9.00hTerms of Payment: T/T, D/P, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DDP

AI-Powered supplier vetting

SummaryZHEJIANG HEARKEN FLOW EQUIPMENT CO., LTD. is an industrial valve-automation supplier offering pneumatic and electric actuators, actuated valves, positioners, monitors, and accessories. The supplier reports ISO 9001, ISO 14001, and BSCI certifications, and states that its products have applied for or hold several product-related certifications, although the exact status is not consistently clear. Reported capacity includes 500,000 pneumatic actuators, 160,000 electric actuators, 48,000 pneumatic positioners, and 60,000 valve position monitors annually, supported by six production lines. The supplier states that it has customization capability and 12 years of valve-automation experience, but the provided evidence does not establish detailed after-sales processes, financial strength, R&D depth, or extensive customer references. Export-related information indicates 90% export sales, self-operated import/export rights, and exporting activity since 2017.

Supplier typeThe supplier operates in industrial equipment and components, specializing in valve automation products including pneumatic and electric actuators, actuated valves, positioners, monitors, and accessories. Its product descriptions and export information support classification as a manufacturer/supplier serving international industrial markets.

CertificationsThe supplier explicitly reports ISO 9001, ISO 14001, and BSCI management-system certifications. It also states that its actuators have applied for or hold SIL 3, ATEX, CE, explosion-proof, and IP68-related certifications, but the wording does not verify each product certificate’s current status.

Production capacityReported annual output is 500,000 pneumatic actuators, 160,000 electric actuators, 48,000 pneumatic positioners, and 60,000 valve position monitors, supported by six production lines. These stated volumes provide explicit evidence of substantial production capacity for the listed product categories.

Customization capabilityThe supplier explicitly claims customization capability and application experience, while shipment/product records include customized versions of electric actuators. This supports the existence of customization capability, although the scope, engineering process, minimum order requirements, and customization limitations are not specified.