Marine SolutionsWater Control Solutions for Marine Industry

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Dorot, part of Matholding Group since 2014, is one of the world’s leading manufacturers and developers

of sustainable technologies and products for water control and optimization systems.

With more than 70 years of experience, the company is a worldwide pioneer

in providing high quality solutions for Hydraulic Controlled Valves and Air Valves.

Customers around the globe benefit on a daily basis from our experience and wide variety of solutions and services in the following areas:

Waterworks Distribution Systems for civil and industrial engineering Fire Protection Industrial Applications such as Mining,

Wastewater, Marine Water Treatment and Filtration

Agricultural and Landscape Irrigation Water Metering and others

Innovation and expertise are the backbones of Dorot. It drove us into developing a

diverse portfolio of water and other fluids systems application, in compliance with

specifications and international quality standards. Customer satisfaction and recognition is of paramount importance for Dorot. This guarantees uncompromised know-how, expertise and professionalism in planning, designing and providing the optimal hydraulic control solutions.

We invite you to join our family of business partners.Together we can provide the best control solutions for

the world’s most valuable natural resource: water

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Ballast Water Treatment

Ballast water is essential for the safe operations of ships. It provides stability and maneuverability during a voyage and during loading and unloading operations. It reduces the hull stress caused by adverse sea conditions or by changes in cargo weight as well as fuel and water. Maritime transport moves more than 90% of the world’s freight and uses up to five billion tonnes of ballast water a year, a figure that is estimated to triple within the next ten to fifteen years. Organisms transported in the ballast water may survive to establish a reproductive population in the host environment, becoming invasive and out-competing native species at risk of total collapse of existing ecosystems. This is considered to be one of the greatest threats to the survival of the oceans by the International Maritime Organization (IMO).

A ballast water treatment system is a major investment with a single purpose: ensuring your environ-mental compliance. We overcome these challenges by offering cutting-edge engineering support and tailor made solutions:

• Dorot hydraulic control valves are designed to work in regulation functions without risk of cavitation.• Dorot hydraulic control valves use energy & pressure of the system, avoiding the use of electric or

pneumatic actuators, which turns into energy saving and developing sustainable systems for the environment.

• Dorot hydraulic control valves can be integrated in any automation system or can be controlled by our own controllers (Condor).

• Dorot hydraulic control valves are made of sea water compatible materials like Nickel Aluminiun Bronze, Ductile iron, SST, with special coating and others.

Applications

Marine Solutions

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Water Works

Dorot’s high-performance valves set new quality and reliability standards. The company’s innovative product lines are supplied in a variety of models and configurations, and are characterized by a minimalistic structure, simple design, long-term durability, cost-effective and user-friendly installation, operation and maintenance.

Dorot’s valves are specially designed to comply with all the demands of Waterworks systems such as: Pressure Management, Low Flow Regulation, Leakage Prevention, Pump Control, Level Control, Surge Prevention, Sewage and Water Treatment. Dorot offers Hydraulic Control Valves (PRVs, PSVs, FCVs etc) for automatic control from 1/2 ’’- 32’’.

Function of the product(s):

• Regulating pressure and flow-rate in water systems. • Controlling air flow into and out of water filled systems. • Prevention of water-hammer and surge risks. • Reducing leakage in municipal distribution systems. • Solutions for harsh conditions Such as NAB, SUPER DUPLEX, SST 316, HALAR and CORROCOAT

coating, etc

Applications

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Fire Protection

Dorot Fire Protection Valves provide a reliable and comprehensive solution for all fire protection ap-plications: from basic fire suppression systems to the most demanding fire protection applications. Dorot’s Fire Protection systems can be utilized in hazardous offshore and onshore locations, and/or corrosive environments such as refineries, platforms, Floating Production Storage and Offloading, power generation plants etc.

Dorot offers a variety of water, foam and seawater fire protection valves for use in deluge, Pre-Action systems; pressure regulating, water level control, hydrants and monitors. Dorot valves are made from a variety of materials such as Nickel-Aluminum-Bronze, Stainless Steel, Super Duplex, Bronze / Marine Bronze, Cast Steel and Ductile Iron.

Standard material valves such as Ductile Iron (ASTM A-536 65-45-12) and Cast Steel (WCB A-216) are coated as standard with zinc-enriched, high-build fusion-bonded epoxy (FBE) and a UV protective topcoat conforming to EN12944 C4 & C5 high & very high corrosion protection grades. Naval quality very high corrosion 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 Ni Aluminum Bronze (ASTM B-148) can be supplied upon request.

Applications

Marine Solutions

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Dorot applications for a sustainable environment

Ballast Water Treatment

Typical Ballast Water Treatment Skid

Electronically Controlled*

S300 Dorot Valve (full SST seat) - For regulation of the flow during filtration and pressure control for the backflushing process of the filtration system.

*The electronic control panel is not in the drawing

300 Series - Metal pilot operated HCV

OverviewDOROT’S 300 Series, state-of-the-art automatic control valves are designed to withstand the most demanding requirements of water system control. The experts at DOROT developed this technically advanced valve with capabilities, beyond any other on the market.

Features & Advantages• The capability to regulate near zero flow, as standard on all sizes, eleminates the need for a special low flow

(throttling plug) or valve, while ensuring very low head loss in “fully open” position.

• The flange (face-to-face) dimensions suit ISO Standards.

• The valve has an internal floating shaft, allowing for frictionless operation. The unique design of the shaft provides for easy field maintenance.

• The valve has a resilient seal disc, guided by a frictionless centering device.

• The valve’s body is made of Ductile Iron, withstanding both high hydraulic and mechanical stresses.

• The standard single - chamber valve provides smooth operation in sensitive regulation conditions. When required, conversion from a single to a double chambered valve is easily accomplished through the insertion of Dorot’s innovative separation disc, without the need to remove the valve from the pipeline during the conversion.

• The valve is supplied with a replaceable Stainless Steel seat, which maintains excellent durability against erosion and ensures a drip-tight seal.

• During valve closure the rate slows, preventing potential damage from water hammer or surges.

• The 300 Series includes an optional valve position indicator, attached by a floating connection (ball & socket), resulting in smooth movement, with no wear or tear on the indicator seal.

• Available materials: Ductile Iron, SST, Bronze and Coated Steel, Cast Steel, Cast Bronze or Marine Bronze, Ni Aluminum Bronze and others.

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SST Air Valve 1” KA (Kinetic - Automatic)

Design by Optimarin

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Ballast Water Treatment

S-300 Marine Applications

EL - Electrically - activated valve: Controlled by an electric solenoid valve, that initiates opening or closure of the main valve. The electric control can be added to most other control applications.

Principal of operationDorot Series 300 Electric Control Valve (’30-EL’) is an automatic, solenoid control valve, activated by the pressure of the pipeline. The valve controls by an electric current or an electric pulse opens or closes the main valve. The standard valve is supplied in the “normally closed” position. The normally open” position is optional. Electric activation can be added to other control applications on request.

Isolation Valve

DOROT S300-30-ELElectric Control Valve

Controller

Isolation Valve

EC - Electronically - controlled valve: Activated by the versatile DOROT “ConDor” controller, that enables all control functions, or combination of functions, at extreme accuracy. Can be controlled by any pulse - activating controller.

Principal of operationDorot Series 300 Electronic Control Valve (’30-EC’) is an automatic, solenoid control valve, activated by the pressure of the pipeline. The valve controls by the versatile DOROT “ConDor” controller that enables all control functions, or combination of functions, at extreme accuracy. Can be controlled by any pulse - activating controller.

DOROT S300-30-ECElectric Control Valve

Isolation Valve

ConDorController

Isolation Valve

DOROTFlowmeter

DOROT - DAV-MAir valve

Strainer

Marine Solutions

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Dorot Fire Protection applications

Fire protection

100 Series - Metal pilot operated HCV/Model 68

OverviewDorot Series 100 valves are automatic, hydraulically actuated, direct diaphragm sealing weir / globe type valves with proven and reliable design. The valves are designed for use in fire protection applications including deluge, pre-action, pressure control, water, foam and seawater fire protection systems.The valves consist of three major components: body, cover and diaphragm.The only moving part is the diaphragm.

Features & Advantages• UL-listed with a wide range of control trims• Fast opening and soft closure operation• Drip-tight hermetic shut off to ANSI FCI 70-2• Simple and reliable design• Easy installation and maintenance• High-grade construction materials• Reliable pressure control from near zero flow• Exceptionally low pressure losses• Latched opening or remote reset• Manual, Electric, Hydraulic, Pneumatic and Pneu-electric UL-listed control trims• Explosion-proof, SIL redundant solenoids & trim accesories• Sea water service

UL listingsThe valves are UL listed as “Fire Pump Relief Valves” (QXZQ.EX15231), ”Special Systems Water Control Valves” - Deluge (VLFT.EX15233) and “Special System Water Control Valves, Pressure-reducing and Pressure-control” (VLMT.EX15232) types. Consult the UL listing guide or contact Dorot for a complete list of approved applications and valve sizes (2”/ DN50 - 10”/ DN250)

MaterialsBody & Cover: Ductile Iron ASTM A-536 / Cast Steel ASTM A216 WCB or low temp. A352 / Stainless Steel CF8M, CF8 / Naval Bronze ASTM B61 / NAB Ni-Al-Bronze ASTM B148 C-95800Coating: UV Protected Fusion Bonded EpoxyOptional: Polyester, Halar & other coatings conforming to ISO-12944 C4, C5 & C5MMain valve trim: Stainless Steel & BronzeElastomers: Rubber, NR, NBR, EPDM, BUNA-NControl trim & Accesories: Brass, Bronze, SST Monel, Special Materials

SpecificationsSizes

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• Straight Flow 20-600 mm / 3/4” - 24”

• Angle 40-150 mm / 11/2” - 6”

End Details:

• Flanged: ISO PN10, PN16 and PN25 ANSI B16.42 class 150, 250 & 300 AS Tables D & E, JIS Additional options available upon request

• Threaded: BSP or NPT

• Grooved

Pressure rating:

• 250 psi for class # 150

• 375 psi for class # 300

Temperature range:

• Water up to 80°C / 180°F max.

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Fire protection

Dorot Fire Protection - Model 68

Designed for• High-pressure (PN25/375psi), high-flow deluge systems• Automatic or local 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• Low to negligible lifelong maintenance costs thanks to no wetted metallic and mechanical moving parts design• Simple, comprised of 3 main parts, no expertise required for maintenance• Fresh or Brackish water, seawater and foam• Out of 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

DE/ELElectrically Actuated

Remote-Reset Deluge Valve

DE/EL-MRElectrically Actuated

Local Manual-Reset Deluge Valve

DE/EL/PORVElectrically & Pneumatically Actuated,

Remote-Reset Deluge Valve

DE/EL/PORV-MRElectrically & Pneumatically

Controlled Deluge Valve

DE/RCElectrically Actuated

Deluge Valve

DE/RC-MRElectrically Actuated,

Manual-Reset Deluge Valve

Marine Solutions

Edition 08/2017

Fire protection

Dorot Fire Protection - Model 30 PR/UL

Designed for• Regulating downstream pressure regardless of upstream pressure and flow fluctuations• Listed pressure rating up to PN25/375psi• Stable regulation from very low to high-flow rates• Industrial, commercial & building fire suppression

Features• Superior design featuring low pressure losses at high flow rates• Stable regulation from near zero flow to maximum design flow• The PR/UL valve regulates at low flow and high pressure differential without bypass or U port design• Low lifelong maintenance costs thanks to its unique design• Standard Stainless Steel seat• Simple field adjustable pressure setting with no special tools or system down time• Fresh or brackish water, seawater and foam systems• Out-of-the-box fully assembled & tested valves• All valve control ports are stainless steel sleeved CF8M or higher for improved corrosion protection• Extensive valve & trim materials selection and corrosion protection coating to EN12944 C4,C5 & C5M

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30-PR/ULFlanged Pressure Reducing Valve

30-PR/ULGrooved Pressure Reducing Valve

CAMERA-READY LOGOTYPE FOR TYPE L AND TYPE R LISTING MARKSThese Marks are registered by Underwriters Laboratories Inc.

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.

200-195D 20M/11/97

F

* expected availability 2018

*

Certifications

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Water Works

Dorot Water Works Marine applications

Driven by know-how, innovation and professionalism in planning, designing and customer service, Dorot water control solutions provides cutting-edge engineering and tailor-made application for water control management. Dorot offers a wide range of Air Valves and Hydraulic Control Valves (PRVs, PSVs, FCVs etc) for automatic control of 1/2 ’’- 32’’ dimension range, developed to overcome today’s challenges for a sustainable and efficient water control systems in Marine industry.

Water Level Control

Model S-300

FL Water-level control valvemodulating type Mounted on the tank / reservoir inlet, below or above the water level. Closes when the water level rises to the float location, preventing overflow, and opens when the water level drops.

FLDI1 and FLDI2 Water-level control valvemodulating type Mounted on the tank / reservoir inlet, below or above the water level. Closes when the water level rises to the float location, preventing overflow, and opens when the water level drops.

Model S-100

FL Modulating Float Controlled ValveThe main valve is controlled by a float valve, located in the tank or reservoir and set at the required maximum water level. The valve maintains the maximum level continuously.

• Accurate and repeatable level control • Simple and reliable design • Easy installation and maintenance • Adjusts the inlet flow to the reservoir’s outlet flow • WRAS Approval no. 0009092

FLDI Differential Float Controlled ValveA float valve controls the main valve, closing it when the water reaches maximum level, and opening it when the water drops to its preset minimum level. The differential between the maximum and the minimum levels is adjustable. Optional Addition: Stepped Surge-Preventing Closure.

• Accurate and repeatable differential level control • Adjustable differential • Fast response • Simple and reliable design • Easy installation and maintenance

Marine Solutions

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Water Works

Dorot Water Works Marine applications

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Pressure and Flow Regulation

Model S-300

30-PR Pressure-Reducing ValveThe Dorot Series 300 Pressure-Reducing (’30-PR’) valve, activated by the pressure of the pipeline, The valve reduces high upstream-pressure to a steady, pre-determined and lower downstream pressure, regardless of fluctuations in upstream-pressure or rate of flow. I case the downstream-pressure exceeds the set value, the valve will close drip-tight.

30-PS Pressure-Sustaining ValveThe Dorot Series 300 Pressure-Sustaining (’30-PS’) activates by the pressure of the pipeline. The valve maintain a steady, predetermined pressure in the network, upstream of its location. Should the upstream pressure exceed the required set-point, the valve opens, increasing network flow, thus reducing its upstream pressure. If upstream pressure falls below the required value, the valve closes drip-tight.

30-QR Quick Pressure-Relief ValveThe Dorot Series 300 Pressure-Sustaining (’30-QR’) activates by the pressure of the pipeline. The valve opens instantly when the pressure in the pipeline exceeds the safe level, thus relieving excessive pressure from the network. When the pressure returns to normal, the valve closes slowly, at an adjustable pace.

Certifications

* The applications presented above are available for the Dorot 100 series product. For further information and tailor-made applications, please contact Dorot Application Engineering dept.

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Air Valves

Dorot Air Valves Solutions for Marine Applications

Presence of trapped air in a pressurized pipeline can have damaging effects on system operation and efficiency. As air pockets accumulate at high points, they reduce the effective cross-section of the pipeline in their location, decreasing the water flow, and increasing energy consumption required to pump the water through, thus reducing the overall system efficiency. A pipeline with many air pockets may impose enough restriction to stop all flow (“airlocks”). The dislodge and movement of the air pockets may change suddenly the fluid velocity, causing pressure surges and pipeline ruptures. Trapped air pockets may also accelerate corrosion in the pipe material, damage water metering devices and cause erratic operation of control valves. Also, when a system is being drained there is a necessity to admit atmospheric air into the pipeline in order to occupy the volume of drained water so to prevent dangerous sub-atmospher-ic pressure in the pipeline that may bring to complete collapse of pipe sections.The use of Dorot Air Valves overcomes all challenges that may occur along a pipeline for a long lasting operational system and most efficient water network. Dorot offers the most reliable solution for Air Valves, in a various range of dimensions and tailor-made mix of materials, from SST, Ductile Iron, reinforced plastic materials and synthetic rubber, corrosion resistant for internal parts (depending on the requirements, Dorot Air Valves can be: Metal, Metal-Plastic, Plastic).

Main Operating Functions:

Kinetic Air / Vacuum Valve• Exhaust large quantities of air from the pipeline when it is filled with water , at low pipeline pressure

(“Kinetic” air-release function)• Admit large quantities of air into the pipe when it is drained, or when the internal pressure drops below

atmospheric pressure due to transient conditions in transient conditions (“Kinetic” anti-vacuum function)

Automatic Air Release Valves• Release small pockets of accumulated air while the pipeline operates under pressure (“Automatic”

air-release function)

Combination Air Valves• A valve that perform the functions of both the “Kinetic” and “Automatic”.

Marine Solutions

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Air Valves

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DAV-MP-1-KA Combination Air-Valve, Metallic-ShieldThis valve has been designed for efficient discharge and intake of air in water pipelines, filtering systems, containers, and other places where confined air could impair the system’s operation.

The valve is designed for:• Discharge of high air-volumes during the initial filling of the systems• Introducing large quantities of air when the pipe drains, maintaining atmospheric

pressure in the pipe and preventing collapse and cavitation damage to the conduits• Relieving air from the water-filled system, while the network is pressurized

DAV-MP-1-K Kinetic Air-Valve, Metallic-ShieldThis valve has been designed for efficient discharge and intake of air in water pipelines, filtering systems, containers, and other places where confined air could impair the system’s operation.

The valve is designed for:• Releasing high volumes of air during the initial filling of the system• Introducing large quantities of air when the pipe drains, maintaining atmospheric

pressures in the pipe and preventing collapse and cavitation damage to the conduits

DAV-MP-2-KA Combination Air-Valve, Metallic-ShieldThis valve has been designed for efficient discharge and intake of air in water pipelines, filtering systems, containers, and other places where confined air could impair the system’s operation.

The valve is designed for:• Discharge of high air-volumes during the initial filling of the systems• Introducing large quantities of air when the pipe drains, maintaining atmospheric

pressure in the pipe and preventing collapse and cavitation damage to the conduits• Relieving air from the water-filled system, while the network is pressurized

DAV-MP-SA Surge arresting device for DAV valves• Surge Arresting - Automatically prevents water hammer pressure surges associated

with air release valves operation.• Optimum performance - Air outlet can be adjusted according to surge analysis results,

on site to a required aero-dynamic performance. The SA addition is assembled on user selected valves only (at local high elevated points). The flow through other valves remains unrestricted.

• Reliability - Simple, durable mechanism, Can be serviced without having to put the air valve out of service.

DAV-MP-1-A Automatic Air-Valve, Metallic-ShieldThis valve is designed for an efficient release of entrapped air from the pipeline, while the network is at normal working pressure. Due to the relatively large orifice, compared to other Automatic valves in the market, it can also release the air through initial filling of a small-diameter pipe, or admit air into it while it is drained.

ReliabilityReliability

Innovation

ExpertiseInnovation

Expertise

Hundreds of companies in the industrial, civil engineering, municipal and agricultural sectors around the world have chosen DOROT’s innovative and field-proven technologies. Since its establishment in 1946, DOROT leads the valves market with continued innovation, uncompromising excellence and firm commitment to its customers, consulting and supporting them through all stages of a project and overcoming challenges in R&D, design, implementation, and maintenance.

www.dorot.com