AVK Nederland B.V.
About us
AVK Nederland is part of the AVK Group, which is one of the largest manufacturers of fittings in the areas of: - water, gas, heating, sewage, irrigation, fire protection, and industrial sectors. Our product range consists of a wide variety of shut-off valves, hydrants, fittings, straatpotten and accessories that are designed to meet the highest standards in terms of safety, durability, and quality. In our own production facility every year, tens of thousands of stainless steel reparatieklemmen, Repico® pipe couplings, support bushes and tapping saddles can be produced.
AVK products are designed as per the international standards and are sold in more than 100 countries all over the world. Things to do with the AVK Group, it means that you have the quality, reliability, functionality and long service life can be expected.
Products
Flanged gate valve, serie 06/84
AVK gate valves are designed with built-in safety in every detail. The wedge is fully vulcanized with AVK’s own oil and gas resistant NBR rubber compound. It features an outstanding durability due to the ability of the rubber to regain its original shape, the double bonding vulcanization process and the sturdy wedge design. The triple safety stem sealing system, the high strength stem and the thorough corrosion protection safeguard the unmatched reliability FEATURES - Fixed, integral wedge nut prevents vibration and ensures durability - Wedge fully vulcanized with NBR rubber and equipped with wedge shoes to provide smooth operation - Wedge and body guide rails ensure stable operation - Stem of acid-resistant stainless steel with wedge stop and rolled threads for high strength - Full circle thrust collar provides fixation of the stem and low free running torques - Triple safety stem sealing with an NBR wiper ring, a polyamide bearing with four NBR O-rings, and an NBR rubber manchette - Round NBR bonnet gasket fixed in a recess - Countersunk and sealed stainless steel bonnet bolts encircled by the bonnet gasket - Full bore - Low operating torque - Fusion bonded epoxy coating in compliance with DIN 3476 part 1 and EN 14901, GSK approved - DN450-600 are fitted with stainless steel roller bearings and external polyamide wedge shoes providing low operating torques. Furthermore, with ISO top flange and eye lifting bolts. - DN500-600 are available with DN by-pass
Knife gate valve with rising them and handwheel
AVK lug/wafer knife gate valves are bi-directional with full and plane bore. The protected sealings and high quality materials bring about a great performance and a long service life. AVK knife gate valves are available with lever, non-rising stem and handwheel, rising stem and handwheel, pneumatic actuator, ISO top flange for actuator or complete with electric actuator. FEATURES - Replaceable top packing gland enables sealing replacement without disassembly of the valve - The valve is self cleaning as particles will be pushed off the gate when opening the valve. For extra protection of the packing gland a scraper is available as an optional extra. - Bi-directional, can be installed independent of the flow direction - Full bore with no reduction of the flow - Plane bottom prevents sediment from being accumulated - No cavity in the body and thus no risk of clogging - U-shaped one-piece NBR sealing between the body parts makes up for tolerances in coating and casting. It is reinforced with a steel insert to protect it from being damaged during operation. - Encaged stem with yokes prepared for mounting of micro switches and inductive censors - Stem and gate connection is secured with self-locking nuts - Supports integrated in the body casting protect the gate from deflecting under pressure - Body of ductile iron with 100-150 μm UV resistant polyester coating, RAL 5017. Optionally of acid-resistant stainless steel or duplex - Yokes of carbon steel with coating 100-150 μm of plascoat PPA 571 Aqua - Gate, stem, bolts and nuts of acid-resistant stainless steel - Washers under the bolts protect the coating - Slim design and low weight - Approved according to the 2014/68/UE Pressure Equipment Directive - Approved according to the 2014/34/EU ATEX Directive - Available in larger dimensions - Optionally in higher PN class
Double eccentric butterfly valve, serie 756
AVK double eccentric butterfly valves with tilted disc are designed for easy operation and long service life. The disc seal is made of AVK's drinking water approved EPDM rubber featuring an excellent compression set and ability to regain the original shape. The high quality epoxy coating and fully encapsulated shaft/disc connection ensure optimal corrosion protection and durability. FEATURES - Double eccentric design releases seal compression after only few degrees of opening resulting in low operating torque - Disc firmly fixed to the shaft to prevent fluttering and a slight tilt allows for precise adjustment of the closed position - Disc seal profile and rubber quality ensure low closing torque - All rubber parts drinking water approved by multiple institutes - Fasteners in stainless steel, A2 - Stainless steel shaft and seal retainer ring - Machined and epoxy coated ductile iron seat integrated in the body - All threaded connections are sealed with O-rings for protection against medium and environment - Radial bearings in self-lubricating PTFE/bronze composite - Shaft ends fitted with an end cover that keeps the shaft in position against system pressure and seals the disc interior against corrosion - Replaceable shaft seals with two EPDM O-rings; gaskets to the exterior in hydrocarbon resistant NBR - Coated with blue RAL 5017 FBE to DIN 3476, GSK and approved by WRAS-DVGW/W270/UBA, 250µm - Drinking water approved by DVGW and WRAS, drinking water approved by KIWA
Flanged ball check valves, serie 53
AVK ball check valves are self-cleaning and with full bore. The ball rotates during use and thus prevents adhesion of impurities to the ball. The full and smooth passage ensures a complete flow with low pressure loss. AVK ball check valves are available with flanges and internal threads. They are supplied as standard with NBR-coated ball and optionally available with polyurethane ball in various weights. Characteristics: - Self-cleaning construction, whereby the ball rotates during use to prevent adhesion of impurities to the ball. - Full bore ensures a low pressure loss and a minimum of back pressure. - Smooth bore eliminates the risk of deposits on the bottom. - NBR vulcanized ball made of aluminum in DN 50-100 and cast iron in DN 125-400. The rubber hardness is optimized to prevent the ball from getting stuck in the seat. For DN 600 the ball is made of aluminum with PUR coating. - The ball is optionally available in polyurethane and suitable for abrasive media and with different weights to prevent any vibrations and water hammer. - Compact, robust design. - Stainless steel bolts and nuts and stainless steel housing and cover.
Penstocks
To make AVK's wide range even more complete on the water and wastewater market, the existing package has been expanded with the AVK Penstocks. AVK penstocks are round or rectangular with a soft-sealing rubber seal along four sides of the slider. All penstocks in the extensive product range have low leakage rate and reliable operation. Characteristics penstocks: - Suitable for wall mounting - Equipped with rising or non-rising spindle - With closed stainless steel 304 or 316 frame - Double available in various sizes - With a stainless steel 316 or HDPE slide Operating options: - Stainless steel 316 extension spindle with spindle cap F27 or half moon - Hand wheel - Worm cupboard - Electric
Centric butterfly valves, serie 820
Centric butterfly valves with an elastomer liner, available as wafer, lug or U-section type. Depending on your application, the body, liner and disc material are determined to withstand specific working conditions. Desponia is a butterfly valve for on/off and control applications from -20°C until 140°C according to the material. Suitable for aggressive and abrasive media.
Butterfly valves, series 75
A butterfly valve is an open / closed valve with a relatively simple construction. In one quarter turn it goes from a fully open position to a fully closed position, or vice versa; a butterfly valve offers the possibility to open or close a pipe very quickly. A butterfly valve can be used in many applications: water supply, waste water treatment, fire fighting, gas production, distribution and industrial applications such as chemical industry, HVAC, energy supplies. The low cost price, the low weight and the short installation length are some advantages of this type of valve. The valves have various operating options such as hand stems, electric or pneumatic drives or a reduction gear depending on the requirements. In general there are two types of butterfly valves, namely the centric and eccentric butterfly valves. With a centric butterfly valve, the spindle is centered in the center of the valve and the disc is centered in the bore. With the eccentric butterfly valve there are one or more axes from the center; depending on type single, double or triple eccentric.
Combination air valve
Short combination air valve - PN 10 for wastewater treatment to max. 60°C (temporarily up to 90°C). AVK combination air valves are designed to combine large volume of air discharge/intake whilst filling/draining a pipeline with automatic discharge of air from the fluid. They feature an innovative design with a large air gap between liquid and sealing system. A spring between stem and float compensates for slight pressure changes and maintains the air gap ensuring reliable function even when used with aggressive liquids and liquids carrying solid particles.
Repico-G
Repico_G, coupling, Grip Type (tensile) for connecting straight pipes
Repico-RH
Repico-RH, repair clamp, Hinge type for repairing straight pipes
Repico® Grip coupling, type G
• Repico® Grip type coupling provides a tensile / axial restraint connection for all metal pipes, allows pipe section replacement, suitable for high pressure, and is available in DN 15-400 • Couplings < DN 50 with spot welding and from DN 50 seam welding • Easy installation by use of a torque wrench, limited space required for installation due to compact design • Pressure range up to 42,7 bar (620 PSI) depending on size • Progressive sealing and anchoring • Max. angular deflection 5° for DN 15-50, 4° for DN 65-175 and 2° for DN >= 200 • Main components of stainless steel 316 • Green PTFE coated bolts • Light weight, appr. 30% in comparison with flanged connections • 60% noise reduction compared to rigid connections
AVK Repico® - Slip coupling (S)
• Repico® Slip type coupling provides a connection solution for all pipes that need to be able to expand/contract and/or support the restraint pipe. Available in DN 15-600 • Couplings < DN 50 with spot welding and from DN 50 seam welding • Progressive sealing • Easy installation by use of a torque wrench, limited space required for installation due to compact design • Pressure range up to 42,7 bar (620 PSI) depending on size • Max. angular deflection 5° for DN 15-50, 4° for DN 65-175 and 2° for DN >= 200 • Made of stainless steel 316 • Green PTFE coated bolts • Light weight, appr. 30% in comparison with flanged connections • 60% noise reduction compared to rigid connections
AVK Repico® - Grip Plast coupling (GP)
• Repico® Grip Plast type coupling provides a tensile / axial restraint connection for all plastic pipes, allows pipe section replacement, suitable for high pressure, and is available in DN 32-200 • Couplings < DN 50 with spot welding and from DN 50 seam welding • Easy installation by use of a torque wrench, limited space required for installation due to compact design • Specially designed flat rows of grips engages into the pipe surface without damaging the plastic material • Pressure range up to 16 bar (232 PSI) depending on size • Progressive sealing and anchoring • Max. angular deflection 5° for DN 32-50, 4° for DN 65-175 and 2° for DN >= 200 • Main components of stainless steel 316 • Green PTFE coated bolts • Light weight, appr. 30% in comparison with flanged connections • 60% noise reduction compared to rigid connections Note: For use in plastic pipes HDPE and PP we recommend the use of an insert (see mounting instructions)
Stainless steel repair clamps
AVK repair clamps ensure a cost effective and reliable solution for quick repairs on steel, copper, asbestos cement, cast iron, PVC and GRP pipes. A pipe with a hole or crack will be repaired permanently. The stainless steel repair clamps are passivated in order to ensure an optimum corrosion resistance. The repair clamps are provided with a waffle structured rubber gasket and rounded tops to create a fully circumferential seal. Features - Clamp made out of a pre-rolled plate of stainless steel 304L - Design with welded stainless steel 304L studs and fingers - Clamp is completely pickled and passivated after welding - Stainless steel nuts: A4 quality with anti-friction through yellow passivation to prevent galling - Gasket of NBR rubber with waffle structure and rounded tops - Vulcanized spanner plate - Tolerance of single band repair clamp is max. 12 mm (depends on diameter pipe) - Clamps available in different diameters: DN 40 up to DN 350 - Clamps available in different lenghts: 100, 150, 200, 250, 300, 400, 500 and 600 mm (other lengths on request) - Indication pressure class for (waste)water: 16 bar for DN 40 up to DN 150, 10 bar for DN 175 up to DN 300 and 6 bar for DN 350 - Suitable for low pressure gas up to and including 500 mbar. For higher pressures please contact our sales department
Control valve, pressure reducing
AVK series 859 diaphragm actuated pressure reducing control valves (PRV) automatically reduces a higher inlet pressure to a lower constant outlet pressure, regardless of flow demand or changes in inlet pressure. A replaceable spring inside the pilot makes it possible to operate in different pressure ranges and still keep the high precision. Setting and adjustment on a control knob on the pilot.
Needle valves
Needle valves, sometimes referred to as plunger valves, are regulating valves and enable engineers to finely control and regulate water flow and pressure. The precision is achieved through the fine movement of the shaft, which enables the gearbox to move the piston tube in sliding motion towards opening or closing position, depending on the requirements from the control system. Needle valves can be used in many different applications with a need for flow or pressure regulation. In water treatment and distribution, dams, reservoirs, power plants and industry needle valves are e.g. used for: • Flow control • Pressure regulation • Pump start • Turbine by-pass • Discharge • Reservoir inlets • Air regulation When to use needle valves? Needle valve, in comparison with diaphragm control valves, can be used with higher differential pressure, and our needle valve standard range covers a pressure range up to PN100. Our standard size range covers DN80 to DN2000. The needle valves can be manually actuated or can be controlled by electrical, hydraulic or pneumatic actuation.
AVK Nozzle check valve
The AVK spring loaded nozzle check valve is a reliable, fast reacting blocker of reverse flow in water pipes. In case of pump stop the spring loaded valve cone will make sure the water flow is shut off swiftly and quietly before it can change direction and cause water hammer. - A spring loaded valve cone makes sure the valve closes before reverse flow can occur - The optimized flow path keeps head loss down to a minimum - Stem, spring and fasteners in stainless steel - All iron parts coated with 150 µm fushion bonded epoxy (FBE) - Centring stem runs in high strength alu-bronze bushings
AVK Smart Water - VIDI Positioner
VIDI Positioner is a battery-operated device that detects the position of a gate valve and transmits data wirelessly. VIDI Positioner is a smart device for indicating the position of gate valves. This IoT sensor detects the open/close position of a gate valve and transmits the data wirelessly. The device is installed in combination with an AVK extension spindle on multi turn valves. After installation and activation, the device transmits information about the position of the valve to the VIDI Cloud platform or to a third-party software (e.g., SCADA or GIS). VIDI Positioner provides water utilities with valuable insights into the use of valves by remotely monitoring the position of a valve by indicating whether it is open, close, or any percentages in between. Based on the provided information, water utilities can optimise the operation of the water distribution network, extend the lifetime of assets, and efficiently reduce water loss.
Supa Maxi™ - Universal and tensile
AVK’s Supa Maxi™ range of universal tensile couplings sets a new standard. The patented SupaGrip™ sealing support system with flexible bracket ensures full support of the gasket and full tensile strength on all pipe types up to 16 bar. Supa Maxi™ couplings are easy to install as they offer ±4° angular deflection in each end, lifting eyes, and bolts tightened from the sleeve side with no need for retightening. The permanent protection caps protect the couplings during transport and installation.
Plug & Play® push-fit couplings
A new coupling for PE, class SDR 11, PN 16 with a double sealing ring and a specially designed grip ring. Simple, fast and reliable installation with Plug & Play®. Avoid welding PE pipes and applying mechanical couplings. Available in the sizes 20 mm to 250 mm. DVGW and ÖVGW approval. Characteristics: - For PE pipes - Fast, easy and reliable - Avoid welding and tightening bolts - Available up to ø 250 mm
News
Cattle market Pump Station upgraded with AVK gate valves and knife gate valves
A successful renovation in Maastricht where technology and teamwork came together seamlessly.
Repico® STFL DN1500 for Pressure Pipeline Bergen op Zoom
Securing the future: sections of the pressure pipeline have been upgraded to ensure reliable wastewater transport