Esmil - Penstocks

Esmil Flow Shut-off and Control Equipment – HIGH STANDARD OF QUALITY AND RELIABILITY

• A wide range of manufactured equipment allows solving even the most complex problems of liquid flow control, level control and/or full flow shut-off.
• Advanced manufacturing and quality control technologies ensure high reliability and tightness of the manufactured equipment.
• The manufactured penstocks are designed for installation in channels, ducts of any size and shape (mainly rectangular, round and semicircular), open or closed ducts and on pipelines. They can also work in gravity tanks or under pressure.
• Simplicity and ease of operation, along with the high quality of the materials used, the mechanical reliability of the structure and the automation capabilities make it possible to effectively use Esmil penstocks in various climatic and operating conditions.

• Wastewater treatment plants
• Water treatment plants
• Local industrial wastewater treatment plants
• Hydraulic engineering and reclamation structures

Tightness complying with the highest standards:

• The penstocks can withstand hydrostatic pressure of up to 1 bar, optionally higher. The permissible leakage rate is 0.02 l/s/m (according to DIN 19569-4, class 4).
• The equipment is checked for leaks at the factory test bench, which ensures quality control of the products, and also allows achieving a higher level of tightness.
• Sealing of the manufactured penstocks ensures their operation in one- and two-way flow directions. The seal of the valves is made of EPDM (optional NBR), which is highly resistant to aggressive media and hydraulic and mechanical impact.

Reliability and Durability:

• Perfect association of casing parts and mechanisms due to the use of high-precision manufacturing technologies.
• High corrosion resistance was achieved by using stainless steel AISI 304, AISI 316 (other types on request), plastic and bronze.
• After welding, the product goes through a full cycle of anti-corrosion treatment: volumetric (acid) etching and passivation by special means.

Ease of Operation and Maintenance:

• The use of high-quality components and time-tested technical solutions ensures a long service life of the equipment and minimizes the need for maintenance.
• During operation, maintenance is limited to periodic replacement of the seal and lubrication of the screw and bearings, which ensures low operating costs and decreased maintenance personnel working hours.
• The design of the penstocks allows for easy replacement of the seal.
• Optionally, a transparent cover for the sliding screw can be made to protect it from dirt and allow visual control of the opening of the gate; a cover for the ground part of the frame can also be provided.

Control and Automation:

• Gearmotors from leading European manufacturers (AUMA, ROTORK) with frequency control, which allows flexible control of the equipment operation and significantly reduces energy consumption.
• The built-in supervision function allows remote monitoring of the operating status of the control cabinet as a whole (dry contacts).
• Electrical protection against overload and power surges is provided.
• The Ingress Protection Rating of the electric drive is IP 68, which allows immersion into the water to a depth of 1 m.
• The penstock with an electric drive is equipped with a control cabinet and (on request) a control unit (MATIC, AUMATIC), which is fully configured at the production plant, which allows the gate to be put into operation without additional efforts on the part of the customer.
• The penstocks can (on request) be designed with the possibility of replacing the handwheel with an electric drive or a manual gearbox.

Individual approach and high reliability:

• A flexible design approach allows it to be customized to specific requirements and locations.
• A wide range of configuration options will satisfy the requirements of even the most demanding customers.
• The Customer can get advice directly from the leading specialists of the company in the shortest possible time. They can also get assistance in solving possible design and delivery issues.

• Parameter Description: Value
• Frame width/height, m: 0.3÷3.0/0.7÷6.2* (greater sizes on a special order)
• Gate height, m: 0.3÷3.0
• Gate closing/opening time, min: 1÷6
• Lifting screw: retractable/non-retractable
• Gate metal thickness, mm: 3÷6
• Frame metal thickness, mm: 4÷6
• Plastic grades used: polyamides PA6, PA610
• Screw diameter: 30x6÷80x10 (trapezoidal thread)
• Sealing: EPDM – standard, NBR – optional
• Service life of the seal, opening/closing cycles: 500
• Permissible leakage, l/s/m: 0.02 (smaller sizes on special order)
• Hydrostatic pressure, m H2O: up to 10 (higher pressure on special order)
• Brands of electric drive used: AUMA, ROTORK
• Ingress Protection Rate of the drive (default): IP 68
• Handwheel diameter, mm: Ø300-500
• Placement of the control element: on the frame / on the outrigger
• Supply voltage, V: 380 – 420
• Mains frequency, Hz: 50

* For a gate with a height of 3.0, the normal frame height is 6.2 m.
Particular values of the parameters, overall dimensions and total weight are determined by the accepted standard size and are indicated in the penstock passport.