Flow Control

2540A5L57SV

Brooks Instrument 2540 Series Acrylic Variable-Area Flowmeter

About this part

2540A5L57SV is a 2540 Series precision-machined acrylic variable-area flowmeter configured for water service, stainless-steel fitting material, and an integral valve with back connections. The manufacturer model-code datasheet maps tube code 5L57 to the valve-model range of 1.5–10 GPM water and specifies ±2% full-scale accuracy, a clear acrylic body, stainless-steel float, Viton seals with stainless-steel fittings, 100 psig maximum pressure, and 150°F (65°C) maximum temperature. Stored auction wording describes observed units as 1–10 GPM; confirm the physical scale, calibration basis, connection material, condition, and process compatibility before installation

Configurations vary. Verify the exact unit before choosing a replacement.

Specifications Photos (14)Listing history

Brooks Instrument 2540A5L57SV 2540 Series acrylic variable-area flowmeter auction image

Archived part photo · View gallery

Key Facts

ManufacturerBrooks Instrument / Key Instruments

Part number2540A5L57SV

Product familyConfiguration-specific

Device typeFlowmeter

Configuration statusConfiguration varies

Application classIndustrial automation and process equipment

CategoryFlow Control

Specifications

Identification

Series and device type

2540 Series precision-machined acrylic variable-area flowmeter

Flow

Configured water range

1.5–10 GPM water for the integral-valve model (tube code 5L57)

Performance

Accuracy

±2% of full scale at reference conditions of 70°F (21.1°C) and 14.7 psia (1 bar absolute)

Connections

Fitting size and material

1-inch female NPT; model-code suffix S specifies stainless-steel fitting material

Configuration

Connection and valve arrangement

Integral valve with back connections (model-code suffix V)

Materials

Body	Clear acrylic
Float	Stainless steel
Seals	Viton O-rings with stainless-steel fittings

Operating limits

Maximum pressure	100 psig
Maximum temperature	150°F (65°C)

Part Photos

14 images

Historical archive images for identification, labels, connectors, and condition reference, not current inventory.

Historical Listings & Prices

Historical listing data, not a current offer

Archive records3Tracked historical listing records

Historical median price$244.90Based on archived listing records

Recorded price range$239.99 - $245.00Low to high recorded listing price

Local documents0PDF copies available from Sonisys

Recorded price context

The typical recorded price range is $240.97 to $244.98. Based on 3 archived listing records; not a current offer, appraisal, or confirmed sale price.

View archived listing titles

Brooks Instrument Flow Meter 1-10 GPM 2540A5L57SV 1” NPT
Brooks Instrument 2540A5L57SV Flow Meter 1-10 GPM Water Brooks

Archived listings

Other Part Numbers & Aliases

2540A5L57SVBrooks 2540A5L57SVBrooks Instrument 2540A5L57SV