Deluge Pressure Reducing Valves. Model 68 DE\ RCL\ PR. Electrically Actuated, Manual-Reset, Pressure Reducing, Deluge Valve

Transcription

1 Fire Protection Div. Dorot Fire Protection Division Deluge Pressure Reducing Valves Model 68 DE\ RCL\ PR Electrically Actuated, Manual-Reset, Pressure Reducing, Deluge Valve Certification & compliance by design ANSI FCI 70- Class VI seat leakage class UL listed under VLFT category Fire tested to EN ISO 68-5:006 SIL - to IEC 65508/65 in redundant system configuration Lloyd s & ABS type approvals Designed for High-pressure (PN5/75psi), high-flow deluge systems Regulating downstream pressure regardless of upstream pressure and flow fluctuations Automatic or manual emergency actuation Hazardous-flammable and explosion classified area fire suppression Onshore & Offshore, Naval, Industrial, Commercial & Residential fire suppression Features Superior design featuring exceptionally low pressure losses at high flow rates Simple field adjustable pressure setting with no special tools or system downtime Low to negligible lifelong maintenance costs thanks to no wetted metallic and mechanical moving parts design Simple, comprised of main parts, no expertise required for maintenance Fresh or Brackish water, seawater and foam Out of the box fully assembled & tested valves All valves are factory trimmed for both vertical & horizontal installations without modification Extensive valve & trim materials selection and corrosion protection coating to EN9 C, C5 & C5M Typical applications Automatic or Manual actuated Fire Suppression Systems Petrochemical, Oil & Gas Installations Tunnels Power Generation, Transformer & Transmission Plants Flammable Storage Hangars & Airport terminals Onshore-offshore Mining Deluge PR Valves

2 Fire Protection Div. Deluge Pressure Reducing Valves General description and operation modes This electrically actuated, manual-reset, pressure reducing deluge valve is designed for fire protection systems controlled by a fire alarm control panel and actuated by a solenoid valve acting as the automatic release device. The basic control valve type used in this deluge system is a direct-sealing elastomeric diaphragm, hydraulically operated control valve engineered specifically for fire protection systems. The system includes a / way N.O. solenoid as the interface between the fire alarm control panel - monitoring heat, smoke or flames - and the deluge valve. In the standby position, the deluge valve is held closed by the upstream water pressure, trapped in the valve's control chamber. The water pressure enters the control chamber through the priming line ball valve [], a Y-type strainer [], a check valve [] and a T-restrictor [5]. Under fire conditions, a fire alarm control panel energizes the / way N.O. solenoid [0] (or de-energizes the coil of a continuously energized ED 00% normally closed solenoid for SIL - rated systems). This causes the pressure in the RCL 8-UL relay valve (manual-reset latching relay) [9] to drop, causing it to latch open and allow the water to begin to drain from the deluge valve s control chamber through the pressure reducing pilot []. The deluge valve opens instantly, regulating to a steady, preset downstream pressure, regardless of upstream pressure or flow rate fluctuations. This allows water to flow into the pipeline and through the open sprinklers over the protected area. Manual emergency actuation is enabled by opening the emergency manual activation valve. When connected through the pressure reducing pilot [] (optional), manual actuation causes the deluge valve to regulate the downstream pressure regardless of upstream pressure or flow rate fluctuations. if 68P-DE\RCL\PR unspecified, the manual activation valve is drained to the atmosphere, thus allowing the deluge valve to open fully. When actuated, the deluge valve opens instantly and allows water to flow into the pipeline and through the open sprinklers over the protected area. To reset the deluge valve and close it, the RCL 8-UL relay s [9] knob must be rotated to unlatch it, thus re-admitting water into the valve s control chamber. Resetting, maintenance and periodic testing instructions must be followed as described in detail in the relevant Dorot DE\RCL\PR model's IOM (Installation, Operation & Maintenance) manual. 68P-DE\RCL\PR Standby Position Electrically Actuated & Pressure Reducing [] [] [] [] [5] [9] [0] [] [] [] [] [5] [9] [0] [] [] To System Manually Actuated & Pressure Reducing Reset to Close [] [] [] [5] [9] [0] [] [] [] [5] [] [9] [0] Rotate [] To System []

3 Deluge Pressure Reducing Valves Typical control trim materials for POG () applications ID Description Material () Dorot deluge valve body See Engineering data model (b) Ball valve SST6 Y-Type strainer SST6 Check valve SST6 5 T restrictor SST6 6 Manual emergency valve SST6 7 Drip valve SST6 8 Pressure gauge SST 9 RCL 8-UL -way relay valve SST6 0 / way N.O. solenoid () SST6 CXPR Pressure reducing pilot SST6 () Petrochemical, Oil & Gas () Refer to material selection guidelines, Engineering Data - Valves & Trims (b) Basic Valve material options: Ductile Iron A ; Cast Steel A-6 WCB; Cast Steel A-5 LCB; Austenitic Stainless Steel A-5/CF8M; Super Duplex 507; Nickel-Aluminium-Bronze B-8 UNS C95800 () Refer to solenoid selection guidelines

4 Deluge Pressure Reducing Valves Fire Protection Div. Valve dimensions Valve (50).5 (65) (80) (00) 6 (50) 8 (00) 0 (50) inch mm inch mm inch mm inch mm inch mm inch mm inch mm A 9 / / 6 / / / / 8 66 B / 6 76 / 6 76 / 6 76 / 6 76 / 6 76 / 6 76 / 6 76 C 7 5 / / / / / / 8 65 / 8 D 0 / / / / / / E 6 / / / / / / / 8 70 F 5 / / / 8 05 / / / / 5 G 0 5 / / 8 68 / 6 / 6 6 / / / 9 Approx. Weight * Approximate dimensions Ibs kg Ibs kg Ibs kg Ibs kg Ibs kg Ibs kg Ibs kg D E F G B C A Optional Upstream Drain Valve 7 Brass 90 SST

5 Deluge Pressure Reducing Valves Fire Protection Div. Typical system layout Dorot s DE\RCL\PR, electrically actuated, manual-reset, pressure reducing deluge valve, is held shut drip-tight in its standby position. When a fire alarm control panel energizes the / way N.O. solenoid (or de-energizes the coil of a continuously energized ED 00% normally closed solenoid for SIL - rated systems) the RCL 8-UL relay latches open and the deluge valve's control chamber begins to drain through the pressure reducing pilot. The deluge valve regulates to a steady, preset downstream pressure, regardless of upstream pressure or flow rate fluctuations. Pressure reducing feature Electrically actuated, manual-reset pressure reducing deluge valve Fire alarm control panel CXPR pressure reducing pilot RCL 8-UL -way relay valve Latching manual reset device 5

6 Fire Protection Div. Deluge Pressure Reducing Valves Ordering guide 68 - SS - P - - AN50RF - DE\RCL\PR - /PI/HA/... Model Optional add-on Material UV Upstream drain valve Dutile Iron - HA Hydraulic alarm loop Cast Steel CS LS Limit switch SST6 SS Ex Explosion-proof * NAB NAB PI Pressure switch Optional add-on function Indicator rod I End connection standard Spring P AN5RF ANSI #50 (FF or RF) Size (inch) - AN0RF ANSI #00 (FF or RF) Technical data: Media up to 80 C = 76 F Elastomers suitable for extreme climates are available upon request. Sizes: Straight Flow: - Angle:.5-8 End connections: Flanged: ISO PN0, ISO-PN6 & ISO-PN5 ANSI B6. Class # 50 and # 00 AS Tables D & E, JIS Additional options available upon request Grooved: Sizes: -8 V ISO6 ISO5 xxx Grooved ISO PN6 ISO PN5 Other (specify) Pressure rating: 50 psi for Class #50 75 psi for Class #00 * If explosion-proof accessories are required such as pressure switches or transmitters, please define classification. UL listed sizes: Model 68: -0 Please specify in addition to the above: Electrical features other than standard (VDC, IP65/NEMA) trim material other than standard (Brass/Copper) Required standards, certifications and approval 6 Specification for engineers The deluge valve shall be hydraulically operated, direct elastomeric diaphragm-seal, single chamber weir type. The valve shall consist of three major components: the body, cover and the diaphragm assembly. The diaphragm shall be the only moving part. The diaphragm forms a sealed control chamber in the upper portion of the valve, separating operating pressure from line pressure. Packing glands stuffing boxes and dynamic o-ring seals are not permitted and there shall be no shafts, discs, bearings or pistons operating the main valve. No hourglass-shaped disc retainers shall be permitted and no V-type, U-type or other slotted type disc guides shall be used. The valve shall contain a nylon reinforced rubber diaphragm, elastic & resilient through its entire surface without vulcanized radial discs and/or reinforcements. The diaphragm shall not be guided by any shafts or bearings and shall not be in close contact with other valve parts except for its sealing surface. Maintenance, disassembly and reassembly of all the valve s components shall be made possible on site and in-line, without the need to remove the valve from the line. Standard material valves such as Ductile Iron (ASTM A ) and Cast Steel (WCB A-6) should be coated with high-built fusion-bonded epoxy (FBE) and a UV protective topcoat conforming to EN9 C & C5 high & very high corrosivity protection grades. Naval quality/very high corrosivity protection grade conforming to EN9 C5M is available upon request. Other coating standards such as NORSOK or ANSI/NACE as well as coatings for special material valves such as austenitic Stainless Steel (CF8M/ASTM A-6 ) and Nickel Aluminum Bronze (ASTM B-8) can be supplied upon request. The valve should be UL listed under category VLFT for fire protection service. Dorot & Dorot companies worldwide reserve the right to make changes without notice including product specification and configuration, content, description(s), dimensions etc. The Information herein is subject to change without notice. Dorot shall not be held liable for any errors. All rights reserved. Copyright by Dorot. Dorot Valves fp@dorot.com Edition..07