Family Owned & Operated Since 1971• Bakersfield, CA
Flowmeters, level transmitters, level switches, and flow indicators
290 products
Process control unit with built-in tank-volume / flow / pump-control / totalization / data-logging wizards — programmed via intuitive on-screen guides without requiring custom PLC logic. Comprehensive control functionality for 4-20 mA or HART-compatible transmitters (e.g., the Rosemount 1208 Level + Flow Transmitter). Tank-volume wizard supports strapping-table-based volume calculation from level. Differential calculations across two transmitter inputs. Common applications: pump start/stop on level set-points, flow totalization for transfer billing, leak-detection differential between supply and discharge. The right choice when full TankMaster + 2460 hub system is over-spec but more than a basic indicator is needed.
Standalone electronics module that drives the entire Rosemount liquid-ultrasonic line — the 3812 / 3814 / 3818 in-line meters and the upgrade path for older Daniel-branded liquid ultrasonic spool pieces. Dual ultra-stable processors generate real-time predictive diagnostics that detect blockages, abnormal flow profiles, and sensor degradation upstream of the meter. HART, Modbus RTU, and Modbus TCP outputs. Used as a replacement for failed electronics in installed meters or as the foundation for a new build of any 3810-series spool. Bracket-mount or integral-mount versions.
Economical two-path liquid ultrasonic flow meter for check metering and allocation — two mid-radius parallel-plane measurement paths minimize uncertainty from disturbed flow profiles. Four transducers measure transit-time difference between upstream and downstream paths. Best for check metering downstream of custody-transfer 3814 / 3818 installations, allocation measurement on multi-product blends, or as a primary meter where 4-path 3814 accuracy is over-spec. No moving parts, full-bore meter, virtually no pressure drop. Pairs with the Rosemount 3810 Series Electronics module.
Premium four-path liquid ultrasonic flow meter — engineered for custody-transfer accuracy of liquid hydrocarbons per API Chapter 5.8 and OIML R117. Four measurement planes (eight transducers) with parallel-plane geometry minimize measurement uncertainty across the full flow range. Wide rangeability, exceptional linearity, and full-bore zero-pressure-drop design make it the workhorse for refining, pipeline custody transfer, and high-throughput tanker-loading applications. Same 3810 series electronics platform as the 3812 / 3818. SIL 2 capable.
Fully redundant dual four-path liquid ultrasonic flow meter for cryogenic LNG custody transfer and dynamic metering — two complete sets of 4-path electronics + transducers in one spool, providing the most rigorous redundancy in the industry for marine LNG transfer. Multi-plane interlocked British Gas meter geometry delivers ±0.15% factory-proven linearity and ±0.027% meter-factor uncertainty. Cryogenic-rated SST body and seals tolerate -162°C LNG. Full-bore design eliminates pressure drop and the risk of LNG flashing. Used in marine custody transfer (loading and unloading), fiscal metering, line balancing, allocation, and check metering on land-based LNG terminals. Same 3810 series electronics platform.
Compact primary element with three sensing technologies in one form factor — 405 (standard orifice plate), 405C (patented 4-hole conditioning orifice), or 405A (compact annubar / averaging pitot). Wafer-style installation between standard process flanges; no separate manifold or flange union required. The conditioning orifice (405C) variant requires only 2 diameters of straight pipe upstream and downstream — best in tight piping. Used as a low-cost, drop-in solution for closed-loop control, general-purpose flow monitoring, and lower-tier custody transfer.
Newer 4051S-platform pressure-based level transmitter — same direct-mount / remote-mount / balanced / Tuned-System level capabilities as the 3051SAL but on the modernized 4051S electronics platform. Industry-leading 20-year warranty and 20-year stability. Built-in Bluetooth for safer-from-distance configuration without entering the hazardous area. Built-in advanced diagnostics. The right choice for new builds (vs the established 3051SAL for retrofits matching existing 3051S installed base).
Easy-to-use cellular non-contacting radar level sensor for remote and mobile tank assets — combines an 80 GHz radar level sensor with a built-in cellular modem (LTE-M / NB-IoT / 5G regional variants) and direct backhaul to the Plantweb Insight Cloud Service: Tank Application. No on-site WirelessHART gateway, no SCADA system, no field cables required — pair the device, mount on a tank, and start collecting level + temperature data in the cloud. Best for distributed tank farms, mobile equipment (rolling tanks, rail cars), pump-station inventory, and remote ag/water/oil monitoring where running power and signal infrastructure isn't economical. Battery-powered (long-life lithium) for years of unattended service.
Annubar averaging pitot tube primary element — measures the velocity-pressure profile across the full pipe cross-section by sensing at multiple insertion ports. Small in-pipe profile minimizes permanent pressure loss (energy savings) versus orifice plates. Pak-Lok or flanged hot-tap-installable for retrofit on operating lines. Used for liquids, gases, and steam in clean-process applications where a low-permanent-loss flow element is preferred over an orifice. Pairs with the 3051SMV / 4088 multivariable transmitters for compensated mass flow.
Premium guided wave radar level transmitter — contact-style radar that fires a microwave pulse down a single rod, double rod, or coaxial probe to measure level by time-of-flight. Immune to vapor, turbulence, foam, and dielectric variability that defeat non-contact radar. Best for difficult liquids (low-dielectric oils, two-phase interfaces, vaporous chambers), bypass chambers, and stilling-well installations. Single or dual probe options, multiple probe materials (316L, Hastelloy, PTFE-coated), wide cable/rod length range. HART or FOUNDATION Fieldbus output. SIL 2/3 certified.
Workhorse 26 GHz FMCW non-contacting radar level transmitter for critical liquid and solid level measurement. Continuous-sweep frequency-modulated radar delivers 3 mm accuracy across a wide measuring range. Multiple antenna options (cone, parabolic, process seal, lens) cover virtually every tank geometry and process compatibility — chemical-resistant PTFE-coated parabolic for aggressive media, cone antenna for short standpipes, planar antenna for hygienic. SIL 2/3 functional safety certified. HART or FOUNDATION Fieldbus output. The most-quoted Rosemount radar for refining, chemical, oil & gas storage, and bulk-solids level.
Severe-service annubar averaging pitot tube — same flow-sensing principle as the 485, engineered for extreme conditions: process temperatures to 1500°F (815°C), ANSI B16.5 2500# pressures, and aggressive media. Solid sensor construction (no welded joints in the wetted path) for failure-resistant operation in main-steam, hot-flue-gas, and high-pressure-pipeline service. Wide material range (316L, Hastelloy C-276, Alloy 800H) for chemistry compatibility. Used in power-station main-steam flow measurement and other applications beyond the 485's envelope.
Compact version of the Rosemount 5900S tank-gauging radar — ±1 mm accuracy (slightly looser than the 5900S's ±0.5 mm) in a smaller, lower-cost form factor. SIL 2 certified, custody-transfer capable. Used in smaller tank farms, distribution terminals, and inventory-management applications where the 5900S would be over-spec. Same Tankbus FOUNDATION Fieldbus output. Pairs with the Rosemount 2240S for full level + temperature tank-gauging.
Premium tank-gauging radar level gauge — ±0.5 mm accuracy under custody-transfer conditions. Used in oil & gas storage terminals, petroleum products, LNG, and bulk chemical tank farms. SIL 2/3 certified, PTB / NMIM / GOST custody-transfer-approved (matched with Rosemount 2240S transmitter and 2410 Tank Hub). Tankbus FOUNDATION Fieldbus output. Multiple antenna types for different tank conditions — parabolic for long-range, cone for short standpipes, still pipe for floating-roof tanks.
Flanged-body magnetic flow meter sensor — workhorse Rosemount mag flow primary element. All-welded sensor body for long-life pressure containment. Wide line-size range (½ to 36 inches) and full flange-rating coverage (ANSI 150# / 300# / 600#, EN equivalents). Lining options for almost any process: PTFE for chemicals, ETFE for high-temperature, Polyurethane for abrasive slurries, Neoprene for water/wastewater, Linatex for severe abrasion. Electrode materials from 316 SST workhorse to Hastelloy / Tantalum / Platinum / Titanium for corrosion-critical service. Pairs with the Rosemount 8712EM transmitter for the standard mag-flow installation.
Wafer-body magnetic flow meter sensor — same all-welded mag-flow architecture as the Rosemount 8705 but in a compact wafer body. Sandwiches between the customer's existing flanges (no integral flanges on the meter), reducing weight and cost vs flanged 8705. Best for line sizes ½ to 8 inches. Same liner / electrode / pairing options as 8705. Pairs with the Rosemount 8712EM transmitter.
Mag-flow transmitter electronics — pairs with any Rosemount 8705 / 8711 / 8750W mag-flow sensor. Intuitive Local Operator Interface (LOI) with dedicated keys for instant access to common parameters. HART 4-20 mA output (workhorse), FOUNDATION Fieldbus and PROFIBUS PA also available. Wall, pipe, or panel mount. Wide hazardous-area cert matrix (FM, CSA, ATEX, IECEx — both IS and XP variants). 90-250 VAC or 12-42 VDC supply. Smart Meter Verification (SMV) diagnostic confirms sensor health without removing from service.
Magnetic flow meter purpose-built for utility-water and wastewater service. Same all-welded sensor body as the 8705/8711 but with a streamlined option matrix optimized for water-utility quote velocity and OPEX-friendly pricing. AWWA-compliant materials, NSF-61 certified for potable-water contact, integrally-mounted transmitter (eliminating remote-mount cost and complexity). Line sizes 1 to 36 in. The water-industry workhorse for billing, custody, distribution-loss measurement, and pump-station flow.
Specialty mag-flow transmitter electronics tuned for slurry applications — mining, mineral processing, paper pulp, dredging, and any service where the process noise from suspended solids would overwhelm a standard mag-flow signal. Combines high-frequency dual-coil drive with proprietary noise-rejection algorithms (peak-to-peak signal averaging, automatic noise-burst rejection). Pairs with the Rosemount MS Magnetic Slurry Sensor for a complete slurry-rated assembly. HART or FOUNDATION Fieldbus output. The slurry industry workhorse where 8712EM + 8705 would lose lock.
Redundant-sensor vortex flow meter — two independent vortex sensors and electronics in one meter body provide functional safety integrity (SIL 2 / SIL 3) for Safety Instrumented System (SIS) applications. Each sensor is independently powered, signal-conditioned, and output-isolated. Used in burner-management systems, emergency shutdown trip loops, overpressure protection, and any SIS loop where a spurious trip or a missed trip carries safety / production / regulatory consequences. Same gasket-free 8800 platform, same multivariable mass-flow capability, doubled diagnostic confidence.
Gasket-free, all-welded vortex flow meter — eliminates the leak points that traditional gasketed vortex bodies suffer in steam, condensate, and high-temperature service. Isolated sensor design provides flow + temperature measurement in one device. Multivariable output (mass + volumetric + temperature). Wide line size range (½ to 12 in / DN15 to DN300). HART or FOUNDATION Fieldbus output. The vortex workhorse for steam, condensate, low-viscosity liquids, and gas service where DP / Coriolis would be over-spec.
Reducer-body vortex variant of the Rosemount 8800 — the meter integrates concentric reducers on each end to accurately measure flow rates BELOW the standard turn-down range while maintaining the same face-to-face dimensions as the larger flanged 8800. Ideal for retrofitting an existing larger-line installation that's now running below the standard meter's turndown threshold (low-flow steam, low-flow gas, off-design operation). Same gasket-free, all-welded body and same multivariable mass-flow capability as the 8800 Flanged.
Fully AGA / API 14.3 compliant natural gas flow meter in a complete pre-assembled package — orifice meter tube + Simplex Fitting + Rosemount 4088 MultiVariable Transmitter. The Simplex Fitting allows quick orifice plate inspections and changes WITHOUT removing the meter from the line — no flange spreading, no gas leakage, no unscheduled downtime. Bureau of Land Management (BLM) accepted for federal and Indian leases. Pairs with 4088 MV transmitter for fully-compensated mass flow with Modbus or Emerson flow-computer output. The custody-transfer natural-gas DP-flow workhorse.
Pre-assembled DP flow meter for harsh-environment continuous service — combines a 1595-style conditioning orifice plate, integrated impulse lines (no separate piping to install), a 3051S or 3051SMV transmitter, a 305 manifold, and an optional 214C RTD temperature sensor in one factory-assembled, configured, and leak-checked package. Roddable impulse lines let operators clear blockages without disconnecting any piping. Conditioning Orifice Technology eliminates the straight-run requirement, allowing installation at grade level or in difficult piping configurations. Operating range 2-6 in. line size, ANSI 900 max, -20°F to 850°F.