Dorot Fire Protection Division Deluge Pressure Reducing Valves Deluge PR Valves Certification & compliance by design Typical applications Automatic or Manual actuated Fire Suppression Systems Hangars & Airport terminals Flammable Storage Power Generation, Transformer & Transmission Plants Tunnels Petrochemical, Oil & Gas Installations Onshore-offshore Mining Model 68 DE\ RC\ PR Electrically Actuated, Remote-Reset, Pressure Reducing, Deluge Valve • ANSI FCI 70-2 Class VI seat leakage class • UL listed under VLFT category • Fire tested to EN ISO 6182-5:2006 • SIL 3-4 to IEC 65508/65111 in redundant system configuration • Lloyd’s & ABS type approvals Designed for • High-pressure (PN25/375psi), 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 its simple internal trim design • Simple, comprised of 3 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 EN12944 C4, C5 & C5M 1
Transcript
Dorot Fire Protection Division
Deluge Pressure Reducing Valves
Deluge PR Valves
Certification & compliance by design
Typical applications
Automatic or Manual actuated Fire Suppression Systems
Hangars & Airport terminals
Flammable Storage
Power Generation, Transformer & Transmission Plants
Tunnels
Petrochemical, Oil & Gas Installations
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The minimum height of the registered trademark symbol ® shall be 3/64 of an inch. When the overall diameter of the UL Mark is less than 3/8 of an inch, the trademark symbol may be omitted if it is not legible to the naked eye.
The font for all letter forms is Helvetica Condensed Black, except for the trademark symbol ®, which isHelvetica Condensed Medium. No other fonts are acceptable.
Please Note:The word "MARINE" should only be used for UL Classified marine products.
• ANSI FCI 70-2 Class VI seat leakage class• UL listed under VLFT category• Fire tested to EN ISO 6182-5:2006• SIL 3-4 to IEC 65508/65111 in redundant system
configuration• Lloyd’s & ABS type approvals
Designed for• High-pressure (PN25/375psi), 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
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
its simple internal trim design• Simple, comprised of 3 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 EN12944 C4, C5 & C5M1
Deluge Pressure Reducing Valves
Model 68-DE\RC\PR
2
Manually Actuated (Standard)
Standby Position Electrically Actuated & Pressure Reducing
Manually Actuated & Pressure Reducing
General description and operation modes
This electrically actuated, remote-reset, pressure reducing deluge valve is designed for fire protection systems controlled by a fire alarm control panel (F&G 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 3/2-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 [2], a Y-type strainer [3], a check valve [4] and a T-restrictor [5].Under fire conditions, a fire alarm control panel energizes the 3/2-way N.O. solenoid [10] (or de-energizes the coil of a continuously energized ED 100% normally closed solenoid for SIL 3-4 rated systems). The pressure in the relay valve [9] drops, causing it to open and allowing the water to begin to drain from the deluge valve’s control chamber through the pressure reducing pilot [11]. 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 [6]. When connected through the pressure reducing pilot [11] (upon request), manual actuation causes the deluge valve to regulate the downstream pressure regardless of upstream pressure or flow rate fluctuations.If unspecified, the manual activation valve [6] drains the water to the atmosphere, 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.Resetting, maintenance and periodic testing instructions must be followed as described in detail in the relevant Dorot DE\RC\PR model's IOM (Installation, Operation & Maintenance) manual.
68P-DE\RC\PR
PRV
PRV
F&G
PRV
PRV
F&G
F&G
F&G
68P-DE\RC\PR
PRV
PRV
F&G
PRV
PRV
F&G
F&G
F&G
68P-DE\RC\PR
PRV
PRV
F&G
PRV
PRV
F&G
F&G
F&G
68P-DE\RC\PR
PRV
PRV
F&G
PRV
PRV
F&G
F&G
F&G
Water Water
Sensor Line
To System
Sensor Line
Sensor Line
Water To System
Sensor Line
Water
[6]
[1]
[10][2] [3] [4] [5]
[9]
[11]
[6]
[1]
[10][2] [3] [4] [5]
[11]
[9]
[6]
[1]
[10][2] [3] [4]
[9]
[5]
[11]
[6]
[1]
[10][2] [3] [4]
[9]
[5]
[11]
To System
Deluge Pressure Reducing Valves
Model 68-DE\RC\PR
3
Typical control trim materials
ID Description Standard POG (1) Applications
1 Valve body See Series 100 Engineering data (2)
2 Ball valve Brass \ SST ball SST316
3 Y-Type strainer Brass \ SST screen SST316
4 Check valve Brass SST316
5 T-restrictor Brass SST316
6 Manual emergency valve Brass SST316
7 Drip valve Brass SST316
8 Pressure gauge Brass case \ SST connection SST316
9 28-200 relay Brass SST316
10 3/2-way N.O. solenoid (3) Brass SST316
11 CXPR Pressure reducing pilot Brass \ SST316 seat SST316
(1) Petrochemical, Oil & Gas(2) Refer to material selection guidelines,
Engineering Data - Materials:Ductile Iron A-536 65-45-12;Cast Steel A-216 WCB;Cast Steel A-352 LCB;Austenitic Stainless-Steel A-351/CF8M;Super Duplex 2507;Nickel-Aluminum-Bronze B-148 UNS C95800
(3) Refer to solenoid selection guidelines
4
7
8
10
11
8
3
1
2
2
5
6
9
Deluge Pressure Reducing Valves
Model 68-DE\RC\PR
4
General arrangement and valve dimensions
Valve 2 (50) 2.5 (65) 3 (80) 4 (100) 6 (150) 8 (200) 10 (250)inch mm inch mm inch mm inch mm inch mm inch mm inch mm
Ibs kg Ibs kg Ibs kg Ibs kg Ibs kg Ibs kg Ibs kg35 16 35 16 77 35 95 43 176 80 282 128 430 195
* Dimensions are approximate(1) Grooved model length
CONTROL VALVES
SST
190
CONTROL VALVES
Brass
247
CONTROL VALVES
E
CB
DF G
A
CONTROL VALVES
E
CB
DF G
A
Optional Upstream Drain Valve
Deluge Pressure Reducing Valves
Model 68-DE\RC\PR
5
12
Typical system layoutDorot’s DE\RC\PR, electrically actuated, remote-reset, pressure reducing deluge valve is held shut drip-tight in its standby position. When a fire alarm control panel energizes the 3/2 way N.O. solenoid (or de-energizes the coil of a continuously energized ED 100% normally closed solenoid for SIL 3-4 rated systems), the deluge valve's control chamber begins to drain 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.
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-536 65-45-12) and Cast Steel (WCB A-216) should be coated with high-built fusion-bonded epoxy (FBE) and a UV protective topcoat conforming to EN12944 C4 & C5 high & very high corrosivity protection grades. Naval quality/very high corrosivity protection grade conforming to EN12944 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-316 ) and Nickel Aluminum Bronze (ASTM B-148) can be supplied upon request. The valve should be UL listed under category VLFT for fire protection service.
Technical data:• Media up to 80°C = 176°F• Elastomers suitable for extreme climates are
available upon request.
Sizes:• Straight Flow: 2”-24”• Angle: 1.5” - 8”
UL listed sizes:• Model 68: 2”-10”
End connections:• Flanged:
ISO PN10, ISO-PN16 & ISO-PN25 ANSI B16.42 Class # 150 and # 300 AS Tables D & E, JIS Additional options available upon request
• Grooved: Sizes: 2”-8”
Pressure rating:• 250 psi for Class #150• 375 psi for Class #300
Please specify in addition to the above:• Electrical features other than standard (24VDC, IP65/NEMA4)• If explosion-proof accessories are required such as solenoids,
pressure switches, etc., please define classification.• Control trim material other than standard• Required standards, certifications and approval Standard- leave empty
