Endress+Hauser Liquiphant M FTM51 Vibrating Fork Level Switch

The Endress+Hauser Liquiphant M FTM51 Vibrating Fork Level Switch is a point level detection instrument for liquids that provides highly reliable overfill protection and low-level pump protection in Saudi Arabia's hydrocarbon processing, chemical production, and water utility applications. The piezo-ceramic vibrating fork detects the presence or absence of liquid by monitoring the change in vibration frequency when the fork tines become immersed — a measurement principle that is immune to foam, turbulence, coating, and conductivity variations that cause false trips in float and conductivity level switches at Saudi Aramco crude oil separators and SWCC desalination plants.

The FTM51's SIL 2 and SIL 3 PFD (Probability of Failure on Demand) certification makes it the switch of choice for Saudi Arabia's safety instrumented system level detection applications including Saudi Aramco separator overfill prevention, SABIC reactor high-high level shutdown, and SEC fuel oil tank pump cavitation protection. The transmitter's self-checking diagnostic function continuously verifies fork resonance frequency, detecting build-up, corrosion, or mechanical damage before the switch fails to respond to a genuine high-level condition. Saudi Aramco's safety management system requires periodic proof testing of SIS level switches — the FTM51's integrated proof test capability generates a certified electronic record without process interruption.

For Saudi Arabia's LPG and light hydrocarbon service, the FTM51's pressure rating to 400 bar and temperature capability to +200°C cover LPG bullet tank safety shutdown and high-pressure separator applications at Saudi Aramco's gas plants. Hastelloy C-276 fork material resists the wet hydrogen sulfide (H₂S) sour service environment at Saudi Aramco's gas sweetening units and SABIC's sulfur recovery plants. The ATEX/IECEx Ex ia and Ex d dual certifications provide installation flexibility for Saudi Aramco's different hazardous area classification zones.

Razz Middle East maintains FTM51 inventory in all standard wetted materials (316L SS, Hastelloy C, titanium) with various process connections to minimize delivery lead times for Saudi Aramco and SABIC maintenance shutdown parts requirements. Our safety instrument engineers provide SIL calculation support, PFD documentation for Saudi Aramco's safety case submissions, and proof test procedure development for FTM51 installations in Saudi Aramco safety instrumented systems.