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Rosemount™ 1199 Diaphragm Seal System

The Rosemount 1199 Diaphragm Seal System offers protection to transmitters, guarding against hot and cold, corrosive or erosive processes.

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Product Description

The Rosemount 1199 Diaphragm Seal System offers protection to transmitters, guarding against hot and cold, corrosive or erosive processes.

This seal system features a variety of solutions, including industry-specific seals for difficult processes. This safety certified system does not require mounting hardware and can be used for many pressure measurement applications, providing reliable, remote measurements.

Features

Protects transmitter diaphragm from corrosive, erosive or extreme temperature processes
Wide variety of seals meet varying process requirements and specifications, including industry-specific applications
SIL 2/3 certified to IEC 61508 (via 3rd party) and prior-use certificate of FMEDA data for safety installations
Eliminates need for mounting hardware to reduce installation costs
Adaptable direct mount gage or absolute seal system can be used for pressurized or vented tank applications
Tuned-Systems can reduce temperature effects by 10-20% and improve response time by 80% vs. traditional installations

Seal System Type	Direct Mount, Remote Mount, Tuned-System, Balanced System
Transmitter Connection	Welded-Repairable, All Welded
Process Connection	Flanged: ANSI/ASME, EN/DIN, GOST, & JIS Threaded: NPT, DIN, ISO Hygienic
Process Wetted Material	316L SST, Alloy C-276, Alloy 400, Tantalum, Gold-plated Alloy 400, Gold-plated 316L SST, CorrosionShield PFA coated 316 SST, see PDS for full list of materials
Certifications/Approvals	SIL 2/3 certified to IEC 61508 by an independent 3rd party, 3A, NACE®, hazardous location, see PDS for full list of certifications

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Pressure Transmitters for Industrial Pressure Measurement

Name: Rosemount™ 1199 Diaphragm Seal System
SKU: -1

Xinyi Instrument supplies pressure transmitters for process control, hydraulic systems, petrochemical plants, water treatment, HVAC, power generation and general industrial pressure monitoring. Our pressure transmitter range covers gauge pressure, absolute pressure, differential pressure, high temperature media and digital communication applications.

Choose from compact pressure transmitters, smart 3051 differential pressure transmitters, diaphragm seal models, RS485 digital pressure transmitters and high frequency dynamic pressure sensors. Standard outputs include 4-20 mA, voltage output, HART and RS485 Modbus options, with stainless steel wetted parts and custom process connections available on request.

Pressure Transmitter Parameters

Pressure Types	Gauge, absolute, negative pressure, differential pressure
Measuring Range	From low differential pressure to high pressure ranges up to 100 MPa, depending on model
Output Signals	4-20 mA, 0-5 V, 1-5 V, 0-10 V, RS485 Modbus, HART options
Accuracy	Typical options include 0.1%, 0.2%, 0.25% and 0.5% FS
Process Connection	M20 x 1.5, G1/4, G1/2, NPT and customized thread connections
Wetted Materials	Stainless steel, 316L diaphragm and corrosion-resistant sealing options
Media	Water, oil, gas, air, steam and compatible liquid or gas media
Applications	Pipeline pressure, tank level, flow differential pressure, hydraulic pressure and automation systems

Recommended Pressure Transmitter Series

Xinyi YW-150 - differential pressure transmitter for stable industrial measurement.
Xinyi YW-3051DP - smart differential pressure transmitter for process control.
Xinyi YW-130 / YW-140 - compact pressure transmitters for general pressure monitoring.
RS485 Digital Pressure Transmitter - Modbus communication for remote monitoring systems.
High Temperature Pressure Transmitter - designed for hot media and demanding process conditions.
Siemens, Yokogawa and ABB Options - international brand transmitters available for project matching.

Pressure Transmitter FAQ

What is a pressure transmitter used for?

A pressure transmitter converts the pressure of liquid, gas or steam into a standard electrical signal for PLC, DCS, recorder or control instrument input. It is widely used for pipeline pressure, tank level, flow measurement and process safety monitoring.

How do I choose the right pressure transmitter?

Confirm the pressure range, pressure type, medium, temperature, output signal, accuracy, installation thread, electrical connection and environmental requirements. For corrosive media, high temperature or sanitary applications, diaphragm material and sealing structure are especially important.

What is the difference between gauge, absolute and differential pressure transmitters?

Gauge pressure transmitters measure pressure relative to atmospheric pressure. Absolute pressure transmitters measure pressure relative to vacuum. Differential pressure transmitters measure the pressure difference between two points and are commonly used for flow, filter and level measurement.

Can Xinyi Instrument provide customized pressure transmitters?

Yes. Xinyi Instrument can support customized pressure ranges, process connections, output signals, cable length, display options and model selection for different industrial applications.