The Mono-Block II+ is the successor to the Mono-Block II, the industry's most widely used additive injector with more than 75,000 installed at loading racks, pipelines, chemical storage and aviation fueling facilities. It keeps the identical footprint, mounting and electronic components of the Mono-Block II for drop-in replacement, while adding mechanical enhancements such as a patented thermal relief device protecting the calibration port and an integral adjustable needle valve for precise flow regulation. It works with Fusion4 MSC-A and SSC-A smart injector controllers, loading presets and terminal automation systems.
Key specifications
Construction: Solid 304 stainless steel block with machined oval gear meter cavity
Connections: 3/8" FNPT inlet and outlet
K-factor: 5,000 pulses per gallon (extended flow)
Accuracy / repeatability: 0.50% / 0.25%
Flow range: 0.38-9.5 l/min; max viscosity 300 cSt
Max pressure: 400 psi
Temperature: -20 to +65°C / -4 to +150°F
Electrical: 120/240 VAC solenoid; Hall-effect open-collector sensor, 5-25 VDC
Features: Plug-style isolation valves, tamper-resistant fasteners and seal-wire covers, strainer basket, SS ball check valve
How to specify / order
Additive type, viscosity and required injection rate
Gear material (Ryton or stainless steel) and solenoid seat material
Solenoid voltage
Isolation valves, thermal relief or blocking solenoid options
Approval (FM or CSA) and mounting kit
Controller it will be paired with; calibration kit if needed
Pricing and lead time are quoted per configuration. Send the model, application details, product, flow range, and pressure/temperature to Flow Measurement Services for a quote. Specifications summarized from Guidant Measurement literature (Mono-Block II+ Additive Injector Brochure with Specifications); confirm current data with the factory before ordering.
Smith Meter (formerly FMC Technologies / TechnipFMC Measurement Solutions), now manufactured by Guidant. Flow Measurement Services supplies and services Smith Meter equipment.