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Brand: Flowserve
Flowserve Logix 1500 Compact Digital Positioner
Description
Flowserve Logix 1500 compact digital positioner for single-acting valves
The Flowserve Logix 1500 is a small, light, modular digital positioner designed for single-acting linear and rotary actuators. It accepts either a plain 4-20 mA analog command or a HART 7 signal, has an LCD with a scroll-push button for menu navigation, and uses a poppet-style relay. Seven Star LLC supplies the Logix 1500 in Oman and the GCC as an independent supplier in Muscat; this page explains the ordering selections and specifications in the manufacturer brochure.
The Logix 1500 is aimed at users who want smart-positioner functions on compact control valve packages, skids and tight locations without the size or cost of a full diagnostic positioner. For double-acting actuators or advanced diagnostics, other Logix models are the better fit.
Logix 1500 technical specifications
| Parameter | Specification |
|---|---|
| Manufacturer / part number | Flowserve / Logix 1500 digital positioner |
| Actuator type | Single-acting, linear or rotary (shaft kit selects) |
| Command signal | 4-20 mA analog, or HART 7 (selection code 1 or 2) |
| Relay | Single-acting poppet relay |
| Output air capacity | 12 SCFM at 60 psi (Cv 0.47) |
| Air consumption | 0.05 SCFM at 60 psi (Cv 0.008) |
| Resolution / repeatability | 0.25 % or better / 0.25 % or better |
| Linearity / hysteresis | ±1.25 % / 1.0 % or better |
| Deadband / sensitivity | 0.3 % or better / 0.25 % or better |
| Stability | 0.5 % or better over 5 minutes |
| Supply pressure effect | 0.20 % or better per 10 psi (0.69 bar) |
| Operating and storage temperature | −40 to 85 °C (−40 to 185 °F) |
| Housing | Aluminium enclosure |
| Air connection | 1/4 in. NPTF or G 1/4, with or without gauges |
| Conduit entry | 1/2 in. NPTF or M20 |
| Approvals listed | Intrinsically safe: FM/CSA, ATEX, IECEx; non-incendive FM/CSA |
| Diagnostics | More than 20 warning alarms; ValveSight DTM or RedRaven IoT |
How the Logix 1500 is built: modular configuration
The positioner is built from a base unit plus a configuration kit. The base carries the electronics and relay. The kit chooses the feedback shaft, the conduit adapter and the pneumatic connection, so the same positioner can be switched between linear and rotary duty with a shaft change. The brochure says modular parts can be exchanged without affecting certification, which reduces the need for site service visits.
A direct-mount approach is also promoted: the positioner can attach directly to the actuator or valve body, avoiding external tubing, fittings and brackets. According to Flowserve this reduces leak points and weight, speeds assembly and improves resistance to vibration. Direct-mount kit options are listed in the installation manual, so request the right kit with the order.
Logix 1500 ordering code selections
The brochure presents the ordering structure as a series of selections. The table shows the choices in the order they are listed; always confirm the exact code string against the current brochure before ordering.
| Selection | Description | Code |
|---|---|---|
| Base model | Logix 1500 series | 15 |
| Housing | Aluminium enclosure | 0 |
| Communication | 4-20 mA input, analog only | 1 |
| Communication | HART 7 | 2 |
| Certification | General purpose and intrinsically safe (US/CAN, ATEX, IECEx, CCC) | 14 |
| Certification | Intrinsically safe (US/CAN, ATEX, IECEx) | 52 |
| Analog output | No analog output / analog output fitted | 0 / 1 |
| Configuration kit | Base unit without kit | 00 |
| Configuration kit | Linear shaft, 1/2 in. NPTF conduit, 1/4 in. NPTF air, no gauges / gauges | 0A / 0C |
| Configuration kit | Linear shaft, M20 conduit, 1/4 in. NPTF air, no gauges / gauges | 0B / 0D |
| Configuration kit | Rotary shaft, 1/2 in. NPTF conduit, 1/4 in. NPTF air, no gauges / gauges | 0E / 0G |
| Configuration kit | Rotary shaft, M20 conduit, 1/4 in. NPTF air, no gauges / gauges | 0F / 0H |
| Configuration kit | Linear shaft, M20 conduit, G 1/4 air, no gauges / gauges | 0J / 0K |
| Configuration kit | Rotary shaft, M20 conduit, G 1/4 air, no gauges / gauges | 0L / 0M |
Note that certifications in China and Brazil (CCC, INMETRO) and CCOE were marked as in progress in the brochure, so confirm the current status if they are required.
Logix 1500 operation, diagnostics and place in the Flowserve range
The scroll-push button on the front navigates the LCD menu and runs the quick calibration, and the brochure notes that this works with safety gloves on. Over twenty warning alarms are watched, and alerts appear on the annunciator, the LCD and through LED blink codes. Health pages suggest root causes, and alarm limits can be changed. With the optional HART 7 communication, ValveSight DTM or the RedRaven IoT platform can read the same information remotely.
The poppet relay is described as responsive and less sensitive to dirt than other designs, suited to tight control and quick actuation. A stable 0.5 % reading over five minutes is quoted for performance.
Compared with the Logix 520MD+, which offers piezo technology, multiple relay types and tiered diagnostic levels, the Logix 1500 is deliberately simpler and single-acting only. Compared with the Logix 3800e, it is smaller, and its listed approvals are intrinsic safety and non-incendive rather than explosion-proof. The Logix 3400MD is the fieldbus option. Choose the 1500 for modulating control on skid-mounted valves and replacements of pneumatic positioners where space or weight is limited.
Logix 1500 selection checklist, installation and maintenance
- Confirm the actuator is single-acting with spring return; double-acting actuators need another model.
- Linear or rotary mounting, and whether direct mounting is possible on your actuator.
- Analog or HART 7 command, and whether the analog position output is needed.
- Area approval needed for the site and the certification code (14 or 52).
- Conduit thread 1/2 in. NPTF or M20 and air thread 1/4 in. NPTF or G 1/4, with or without gauges.
- Supply air quality and the ambient range at the installation.
Mount the positioner with the correct shaft kit, make the air and conduit connections using matching thread types, and run a quick calibration from the front panel. Keep the instrument air clean and dry, because a poppet relay may be tolerant of dirt but still benefits from filtration. After commissioning, record the calibration and alarm limits so that later checks have a baseline. Modular parts can be swapped during maintenance, so holding a spare configuration kit is a practical way to shorten repairs.
Typical Logix 1500 applications in Oman and the GCC
Compact positioners are used on control valves in water treatment and desalination, utilities, fuel gas and chemical dosing skids, and wellhead-style packages in oil and gas. The aluminium case and sealed enclosure suit sun, dust and humid coastal air, while the brochure states operation from −40 to 85 °C for hot desert conditions. Shade the unit where possible and orient conduit entries downward to keep moisture out.
Information to send with a Logix 1500 RFQ
- Quantity and the existing positioner label data if replacing a unit.
- Actuator make, size, linear or rotary and fail-safe direction.
- Command type, analog output and gauge requirements.
- Hazardous area certification and thread preferences.
- Control system or HART tool in use.
Documents and quotation
The Flowserve Logix 1500 brochure is attached to this page with the specification and configuration tables. Send the part number and the details above to Seven Star LLC and we will reply with a quotation for supply to Oman and the GCC.
Other Models in the Flowserve Logix Positioners Range
Seven Star LLC supplies models from the Flowserve Logix Positioners range in Oman and the GCC. Compare the related models below and request a quote for the one that matches your application.
| Model | Category | |
|---|---|---|
| Flowserve Logix 520MD+ HART Digital Positioner | Valve Positioners | View details |
| Flowserve Logix 3400MD Fieldbus Digital Positioner | Valve Positioners | View details |
| Flowserve Logix 1500 Compact Digital Positioner | Valve Positioners | You are viewing this model |
Datasheets & Documents
- Catalog Flowserve Logix 1500 Brochure Download
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About brand
Flowserve is the American flow control company for pumps, valves, mechanical seals and valve automation, known through brands such as Durco, Worthington, Byron Jackson, Valtek, Limitorque, Worcester, Logix and Argus. It was formed on 22 July 1997 by the merger of equals of Durco International and BW/IP, whose heritage reaches back to Simpson & Thompson (1790) and Byron Jackson (1872). Flowserve Corporation is headquartered in Irving, Texas, and listed on the New York Stock Exchange.
Seven Star LLC sources and supplies Flowserve pumps, seals, control valves, ball valves, actuators and positioners for process plants in Oman, working from the nameplate data and the manufacturer's documentation.
Flowserve company profile
| Formed | 22 July 1997, merger of Durco International and BW/IP |
|---|---|
| Heritage companies | Simpson & Thompson, later Worthington Simpson (1790); Byron Jackson (1872); Duriron foundry, later Durco (1912) |
| Headquarters | Irving, Texas, USA |
| Ownership | Flowserve Corporation, public company (NYSE: FLS) |
| Product families | API and ANSI process pumps, Durco and Worcester ball and plug valves, Durco TX3 triple-offset and Valtek butterfly and globe control valves, Limitorque electric actuators, Logix positioners, mechanical seals |
Milestones
- 1790: Thomas Simpson founds Simpson & Thompson, a predecessor of Worthington Simpson pumps.
- 1872: Byron Jackson is founded, a root of BW/IP.
- 1912: The Duriron foundry, later Durco, is launched.
- 1997: Durco International and BW/IP merge on 22 July to form Flowserve, listed on the NYSE as FLS.
Flowserve product families listed here
Flowserve pumps on this page are the Durco Mark 3 ANSI process pump and the ECPJ vertical sump pump built to API 610 type VS4. Sealing products are the ISC2 cartridge mechanical seal to API 682 and DuraClear barrier fluid for dual seal systems. Flowserve valves include the Valtek Mark One globe control valve, Argus floating and trunnion-mounted ball valves (EK71, FK79, FK76M) and Durco Microfinish ball valves. Automation is covered by Limitorque MX and L120 multi-turn electric actuators, the Rotadisk RD and RDF pneumatic actuator and the Logix 3800 digital positioner.
Where Flowserve equipment is used
Mark 3 pumps handle acids, caustic, solvents and utilities in chemical and petrochemical units. VS4 sump pumps drain pits and collection tanks. Valtek control valves and Argus ball valves are found in refining, gas processing, power and desalination, and Limitorque actuators operate gate and globe valves on pipelines, tank farms and water networks across the GCC.
Flowserve products we list
Ordering Flowserve parts: what we need
The serial number on the nameplate is the key to Flowserve records for a pump, valve or actuator. Please add the following by product type:
- Pumps: size and model, impeller diameter, materials, seal arrangement, and the part name and item number from the sectional drawing
- Mechanical seals: seal type and size, drawing or part number, materials code, pumped fluid and flush plan
- Valves: size, pressure class, body and trim materials, end connections, and the actuator and positioner model
- Limitorque actuators: unit size, order and serial number, supply voltage, wiring diagram number
Facts checked against Flowserve's SEC filings and published company histories, October 2026.
Browse Flowserve products by category: Control Valves, Pumps, Valve Actuator, Valve Positioner.
FAQ
Questions about the Flowserve Logix 1500 Compact Digital Positioner
Answers from our engineering team on installation, compatibility and integration.
01What is the Logix 1500 designed for?
It is a compact, light digital positioner for single-acting linear or rotary actuators. It offers a 4-20 mA analog or HART 7 command, an LCD, and basic diagnostics with more than 20 warning alarms.
02Can the Logix 1500 control double-acting actuators?
No. The brochure describes it as a single-acting positioner with a poppet relay. Double-acting actuators need another Flowserve model, such as the Logix 520MD+ with a double-acting relay.
03What air capacity does the Logix 1500 have?
The standard relay is rated for 12 SCFM at 60 psi (Cv 0.47) with air consumption of 0.05 SCFM at 60 psi (Cv 0.008).
04What temperature range is stated?
The brochure gives -40 to 85 degC (-40 to 185 degF) for operation, transport and storage, with an aluminium enclosure.
05How do I choose between linear and rotary versions?
The feedback shaft is part of the configuration kit: a linear D shaft or a rotary NAMUR shaft. Selecting the kit code also sets the conduit thread and air connection.
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