Rings - Import export

Dimensions Wire diameter: 0,2 – 8,0 mm Outside diameter: > 120 mm after consultation All wire profiles feasible Material All spring materials and quality steels with lower strengths Coating All commonly coated spring steels In-house phosphating In-house stove-enameling Additional coatings through external services Specialities Clamping rings made of round wire or flat material Clamping rings with a stamp Rings with defined bendings Minimum burr cut-geometry Additional processing available after consultation Customer specific packaging Rapid prototyping

Westfälsche Drahtindustrie GmbH uses highly efficient plant technology at its Salzgitter site to produce cold-ribbed reinforcing steel (CR) in rings and coils, as well as structural steel mesh. Thanks to special wire rod primary material for our CR products, which we have developed in close cooperation with our suppliers, our reinforcing wire achieves first-class technical values, particularly in terms of elongation and the Re/Rm ratio The advantages for the user: easy processing and dimensional accuracy of the hangers. Seamless quality monitoring from the wire rod to the finished product by our own quality centre and our external monitoring centre (MPA Dortmund) guarantees the highest level of lasting quality and safety.

ZWP is one of the leading independent manufacturer in Germany for gears, pinions and rim gears. We supply already well-known manufacturers for gear boxes. We are looking forward getting intouch with you to have a conversation about possibilities for your supply. Sectors of our (international) customers are: Mining, Oil, Offshore, rail and ship transmissions, industrial transmissions, and many more fields of applications. Overview about the capabilities for production: Gears internal and external toothed hardened and grinded Module 2 – 50 mm Diameter 100 – 2,000 mm Internal toothed rings / ring gears hardened and grinded Module up to 20 mm - more on request Diameter 100 to 1,800mm Pinions and shafts internal and external toothed hardened and grinded Module 1 – 50 mm Diameter 50 – 500 mm Length up to 1,500 mm Hardening and balancing inhouse possible. Cooperation with companies for special manufacturing of gears and pinions etc We speak English.

Spherical valves are installed upstream of the turbine as shutoff devices specifically for high pressures at the end of the penstock. Their main function is to close off the penstock during normal shutdown or load shedding of the turbine. The seal is a metal sliding ring which is generally moved by water hydraulics. The MANOY® system seal WP, type 434 (outer sealing) and the inner sealing type 439, were developed for sealing of the sliding ring. The profile dimensions can be customized for maintenance or specific requirements.

Hydraulic and pneumatic cylinders, Presses, Shock absorbers, Fittings, Controls, Piston and plunger pumps, Mobile hydraulics, Injection units

Hydraulic and pneumatic cylinders, Presses, Shock absorbers, Fittings, Controls, Piston and plunger pumps, Mobile hydraulics, Injection units

The X‑ring is a continuous, seamless vulcanized ring with a special profile which is derived from four O‑rings arranged in a square crosssection.The particular advantage of the X‑ring is that it cannot roll or twist. The squeeze required to maintain an effective seal is also relatively low.The X‑ring is used in mechanical and automotive engineering, preferably as a static radial or static axial seal. Other applications are for linear or rotary motion of plungers, pistons, tappets, dampers and valve, bearing and piston rods, etc.

XXL O‑rings are typically used as static radial or static axial seals in mechanical, power plant, plant and heavy equipment engineering. The special stagevulcanization production technology is also suitable for single or small lot production of smaller O‑rings with a nonstandard inside diameter.

The MANOY® backup ring is a solid or split ring which is rectangular or profiled in section. Various sectional profiles and sizes are available in standard or customized versions. MANOY® backup rings can also be used in dynamic applications – positioned on both sides of the O‑ring for alternating pressure.

According to DIN2353 for pipe connections up to 60 bar

Removal of determined locking ring class (double removal) with control measurement and transfer to assembly station Locking ring assembly and testing (cycle time approx. 30 sec.)

A snap or retaining ring is a fastener or retaining ring that consists of a semi-flexible metal ring with open ends that can be snapped into place. It fits in a groove on a shaft or inside a bore and locates the shaft axially in one direction.

Circlips and Locking Rings consist of a semi-flexible metal ring with open ends that can be snapped into place. They fit in a groove on a shaft or inside a bore and locates the shaft axially in one direction.

ORing in material NBR, FKM, FFKM, VMQ, EPDM, ect.

These are the fastener rings made by brass.

Mechanical parts - washers.

When to use piston rings? When piston rings with excellent wear properties are required When simple assembly is of great importance When high edge loads occur When tailor-made solutions based on iglidur® materials are required When not to use piston rings? When the piston rings should seal simultaneously When different diameters should be covered by one part Before: with piston rings: Why complicate things when it can be done differently? Replace elaborately stamped PTFE tapes with a single clip-on guide ring, such as in lifting elements, control valves and fittings. We offer iglidur® piston rings made of freely selectable materials for a wide range of applications. Special properties Easy to assemble Low-priced More wear-resistant than PTFE-bonds Higher load capacity Defined dimensions different materials per ex. iglidur® J, J350… iglidur® piston rings - application examples When to use piston rings? When piston rings with excellent wear properties are required When simple assembly is of great importance When high edge loads occur When tailor-made solutions based on iglidur® materials are required When not to use piston rings? When the piston rings should seal simultaneously When different diameters should be covered by one part Installation recommendations pistons installation recommendations for housings Installation recommendations for housings Dimensions [mm] dS (h-tolerant) [mm] dG (h-tolerant) [mm] bg [mm] Nominal diameters dS = d1 dG = d2 bG = b1 +0,2 Installation recommendations for pistons Dimensions [mm] dG (h-tolerant) [mm] dH (h-tolerant) [mm] bg [mm] Nominal diameters dG = d1 dH = d2 bG = b1 +0,2 b1: Desired length Inner and outer Ø (d1 and d2) made using standard plain bearings* M for metric PRfor piston ring iglidur® desired material

Elastomer or plastic sealing elements and also elements made of composite materials (elastomer + plastic or metal) can be compounded with metal detectable additives.

Sealing and bearing of rods, shafts, axes and spindles. Linear, oscillating and helical motion. Liquids, pastes and gases.

Applications at high speed and low pressure. With O‑ring as secondary seal for sealing in the groove base. Hygienic design without undercuts. No sump formation in front of the seal. Reduced heat buildup due to special lip design. Pressureactivated seal energization. The integrated wedge prevents the sealing lip turning inside out. Very long seal life due to high abrasion resistance. Material only generates low frictional force. Sealing lip does not stick to the mating surface even after prolonged shutdown

The encapsulated O‑ring widens the potential applications of the O‑ring. The core of the ring is made of silicone (VMQ) or fluoroelastomer (FKM). The plastic FEP (tetrafluoroethylenehexafluoropropylene) is used for the seamless encapsulation. The particular product advantage lies in the combination of the elasticity of the O‑ring and the chemical resistance of the fluoroplastic.

Design of the housing in the form of a groove should be avoided if possible. If this is not feasible, good housing and seal cleanability must be guaranteed. The hygienic design requirements can be met by having a particularly large groove base radius, avoiding notches and having a split housing. For WIP/WOP cleaning it is important to be able to remove and replace the seal without damaging it. Given a suitable machine design, cleaning in place is also possible.

Design of the housing in the form of a groove should be avoided if possible. If this is not feasible, good housing and seal cleanability must be guaranteed. The hygienic design requirements can be met by having a particularly large groove base radius, avoiding notches and having a split housing. For WIP/WOP cleaning it is important to be able to remove and replace the seal without damaging it. Given a suitable machine design, cleaning in place is also possible.

Face seal used for rotary and oscillating motion in pipe joints and rotary actuators

For SIP (Sterilization In Place), the MANOY® AS dosing piston is fed into the washing hole, which must be designed so that the piston has sufficient expansion capacity during SIP at +140°C to avoid damaging its functionality and shortening its life. After the cleaning process the MANOY® AS dosing piston may only be moved into the dosing hole when a temperature close to the operating temperature (operating temperature +20 °C), and not to exceed +80°C, has been reached. A feed cone into the dosing hole of 10° max. and rounded edges are essential.

For CIP (Cleaning In Place), the MANOY® AS dosing piston is removed from the dosing hole. A simple vertical wash in the hole is suitable and sufficient. After the cleaning process the MANOY® AS dosing piston may only be moved into the dosing hole when a temperature close to the operating temperature (operating temperature +20 °C), and not to exceed +80°C, has been reached. A feed cone into the dosing hole of 10° max. and rounded edges are essential.

Servo motors in hydropower plants normally operate water hydraulically. These servo motors perform the functions of opening, closing and control of shutoff and regulating devices and must be able to maintain the setting position at any prevailing pressure.

Kaplan turbines are typically used for river power plants on calm waters. The blade angle runner blades (Kaplan blades) is adjustable. The pressure of the water flow, which is controlled by the guide vanes of the upstream wicker gate, can then be efficiently converted into energy. The bidirectional MANOY® system seal WP, type 444, in the form of a continuous ring was developed to protect the hydraulic adjustment device and prevent hydraulic fluid leakage. Type 449 is particularly useful for maintenance work because rather than being continuous in circumference, the seal is open and has a guide blade.

Penstocks are used to discharge the headwater from a reservoir. Due to thermal and dynamic effects on the pipelines which are usually run underground in the mountain, compensation for expansion is necessary. By fitting an expansion joint, slow creep movements, eccentricity, dilation and also pipe misalignment can be reliably absorbed. The MANOY® system seal WP, type 436, was specially developed for leakagefree operation of an expansion joint.