FLOWSERVE GESTRA Equipment for Energy Supply Centres

Steam and condensate systems with one-stop sophistication Process steam Steam drier/ purifier Energy supply centre Flash steam/gas Steam flow measurement Deaerating unit Measurement data from boiler house Condensate tank Blowdown Flash vessel Intermittent boiler blowdown Heat exchanger Fresh/soft water Cooling water Fuel Cooling water Blowdown receiver

Equipment for Energy Supply Centres Content Electrical pressure control Controlled from the condensate side Steam flow measurement Electrical temperature control Mechanical temperature control Heat exchanger Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5 Steam Boiler Equipment with BUS Technology . . . . . . . . . . . . . . 6–7 Steam Boiler Equipment with SPECTORcontrol Controlling, Monitoring and Visualizing . . . . . . . . . . . . . . . . . 8–10 Equipment for Pressurized Hot-Water Plants . . . . . . . . . . . . . . . . . 11 Low-Level Limiters...

Overview Safety, reliability, availability and economy have always enjoyed top priority in boiler operation . To an increasing extent, another aspect is being added for the plant operators: process automation and visualization . To meet these stringent requirements, GESTRA AG has – for more than five decades now – been working exclusively with electrode systems that are low in maintenance and wear; in contrast to other systems, they function entirely without moving parts, which leads to high service lifetimes and very low failure rates . By now, these GESTRA electrode systems are being applied...

The Benefits SPECTORmodule Touch The SPECTORmodule Touch version focuses on the essentials: the main functions and a clear, intuitive user interface. With this series, the controller was separated from the operating unit, which means that the laborious wiring for sensors, feedback, limits, valve actuation etc. in the control cabinet door is no longer required. Universal controllers generally entail a large number of parameter settings, making the operating workflow and the setting of parameters more difficult. In the development of the SPECTORmodule Touch series, clear and easily understandable...

GESTRA Steam Boiler Equipment – SPECTORbus – For operation without constant supervision as per EN 12953 (72 h)

Equipment for Energy Supply Centres Low-level limiter of “high-integrity design”: level electrode NRG 16-40, level switch NRS 1-40, SIL 2, NRS 1-40.1 Separate high-level alarm of “high-integrity design”: level electrode NRG 16-41, level switch NRS 1-41, SIL 2 Level control with high-level alarm and remote water level indicator: level probe NRG 26-40, level controller NRR 2-40, control terminal and display unit URB 2 und control valve V 725 Water level gauge Conductivity measurement with indication, limit switch and continuous blowdown control: conductivity electrode LRG 16-4, continuous blowdown...

GESTRA Steam Boiler Equipment – SPECTORcontrol – For operation without constant supervision as per EN 12953 (72 h) – controlling, monitoring, operating, visualizing and communicating Control Control room Service partner

Low-level limiter of “high-integrity design”: level electrode NRG 16-40, level switch NRS 1-40, SIL 2, NRS 1-40.1 Separate high-level alarm of “high-integrity design”: level electrode NRG 16-41 Level control with high-level alarm and remote water level indicator: level probe NRG 26-40, SPECTORcontrol and control valve V 725 Water level gauge Conductivity measurement with indication, limit switch and continuous blowdown control: conductivity electrode LRGT 16-4, continuous blowdown controller LRR 1-40, continuous blow down valve BAE Automatic intermittent blowdown: intermittent blowdown valve...

Externally Mounted Level Limiter Low-level limiter of “high-integrity design”, certified to SIL 2: level electrode NRG 16-40, level switch NRS 1-40 Shut-off valves with two limit switches each Drain valve with one limit switch

Equipment for Energy Supply Centres GESTRA Equipment for Hot-Water Boilers – BUS technology – for high-pressure hot-water generation with separate pressurizing vessel c Low-level limiter of “high-integrity design”: level electrode NRG 16-40/level switch NRS 1-40.1 Temperature monitor for elevating the return temperature: resistance thermometer TRG 5-63/TRS 5-40/URB 2 On-off level controller with separate high-level alarm: level electrode NRG 16-42/level switch NRS 1-42 Disco non-return valve RK 86 T Blowdown: intermittent blowdown valve PA Safety temperature limiter: resistance thermometer TRG...

Technical Information a Low-Level Limiter (LW) up to PN 320 The limiters consist of a combination of level electrode and level switch. In general, a distinction must be made between units of “conventional design” and those of “high-integrity design” (i.e. with self-monitoring). The corresponding applications for the units are defined in the technical rules and depend mainly on the hazard potential of the plant. A basis for these considerations can be the maximum allowable operating pressure (TRD 701: 1 bar; PED: 0.5 bar) or the boiler water content (TRD 802). For areas covered by these rules...

Level limiter of “high-integrity design” Limiter system of “high-integrity design” Externally mounted level limiters of “highintegrity design” It consists of a level electrode and level switch, and was developed from a concept proven over many years of service. The GESTRA systems NRG 16-40, 17-40, 19-40, NRG 111-40, NRS 1-40 and NRS 1-40.1 (PN 40–320) offer the highest state of the art. With the electronic control unit NRS 1-40.1, it is possible to connect not only the level limiter but also a high-level alarm and/or safety temperature limiter. To safeguard the high safety standard of the level...

Technical Information c High-Level Alarm (HW) GESTRAbus The right system for every application. For the high-level alarm, there are also various systems available whose area of application is primarily determined not by the technical literature but by the downstream consumers of the steam. Of the diverse standards, only the TRD 604 (72 h operation) poses the re­ uirement that the q high-level alarm must be a unit separate from the controller and limiter. In the other codes, including EN, this requirement is not expressed. The units of “conventional design” are especially applied wherever no direct...