Manufacturer of Industrial Valves a n d R e l e v a n t E q u i p m e n t Tilting Disk Check Valves www.mirabvalves.com
TiltingDisc Check Valves Size: DN 100 1 mm Pressure: PN 10 40 bar Face to face: DIN EN 5581 series 14 (DIN32F4) Flanges: DIN EN 10922 (DIN 1) Product features: Eccentric disc operation, Body seat ring made of corrosion resistant steel, Disc seat ring is corrosion resistant steel with seal for reliable sealing, Possibility for installation of weight and lever on both sides. Low weight for short length of the valves, Maintenance free, Rugged body with disc suitable for fluid flow Disc and shaft are connected by key, Seat ring rolled into the body. Product features: This types of valve is used in water supply installations to stop the fluid flow in the opposite direction. The valve closing speed can be adjusted by changing the weight position along the lever. All of the seals of the valve bearing can easily be replaced. The standard seal material is NBR for up to 70 C (for gas up to100 C). For higher temperature and other fluids suitable seal material is available on request. Corrosion protection: Body and disc are fully coated with blue electrostatic powder coating with minimum micron thickness. Application: Suitable for fluids such as water & waste water up to 70 C & gas up to 100 C. Nominal Pressure PN (bar) 10 25 40 Hydrostatic test Pressure (bar) according to DIN EN 2661 Test Pressure Shell Test 17 25 38 60 Closure Test 11 18 Design: Possibility for installation of weight and lever on both sides. Disc seat ring is corrosion resistant with Oring included. Rugged body with disc suitable for fluid flow. Bended stainless steel body seat ring. Disc & shaft connection by key. Low weight as short pattern. Eccentric disc operation. Maintenance free. Reliable design. 3 MB0717
Part List 03 32 31 33 04 06 27 26 22 07 30 29 01 25 24 17 18 14 15 13 11 09 10 08 11 4 MB0717
Body Seating Surface Optional Design #1 02 21 05 Normal Design Optional Design #2 Welded Directly onto the Body Separate Seat Ring Pressed into the Body Welded Directly onto the Body 5 Part No. Part Name Part Material 01 02 03 04 05 06 07 08 09 10 11 13 14 15 17 18 21 22 24 25 26 27 29 30 31 32 33 Body Body Seating Surface Bearing Bush Disk Disk Seat Shaft, Lever End Shaft, Free End Shaft Sealing Oring Oring Spacer Ring Bearing Cover Oring Washer Hexagonal Bolt Cap Internal Key Key Retainer Hexagonal Bolt Counter Socket Screw Oring Lever Key Spacer Ring Cir clips Limit Stop Socket Screw Counter weight Socket Screw Socket Screw Hexagonal Bolt Washer Nut rubber (1) Recommended spare parts (2)Parts subjected to wear ENGJS7 available on request. EN 1563/ ENGJS15 18Cr 8Ni ASTM B148 UNS 950 EN 1563/ ENGJS15 DIN EN 100883/ 1.4301 DIN EN 100883/ 1.4021 DIN EN 100883/ 1.4021 DIN EN 100883/ 1.4301 NBR (EPDM on Request) NBR (EPDM on Request) BRASS EN 1563/ ENGJS15 NBR (EPDM on Request) DIN ISO 8982, Property Class 8, Zinc Plated DIN ISO 8981, Property Class 8.8, Zinc Plated EN 1563/ ENGJS15 DIN EN 100883/ 1.4057 DIN EN 100883/ 1.4301 ISO 61, Gr. A2, Property Class 70 ISO 61, Gr. A2, Property Class 70 NBR (EPDM on Request) ST High Strength Carbon SteelSt 60 BRASS Steel (FST) EN 1563/ ENGJS15 ISO 61, Gr. A2, Property Class 70 EN 1563/ ENGJS15 DIN ISO 8981, Property Class 8.8, Zinc Plated DIN ISO 8981, Property Class 8.8, Zinc Plated DIN ISO 8981, Property Class 8.8, Zinc Plated ISO 8982, Property Class 8, Zinc Plated ISO 8982, Property Class 8, Zinc Plated EPDM / NBR 1 2 MB0717
6 Dimensions & Weight of TiltingDisc Check Valve L b n DIN EN 1092 2 (DIN 1) DIN EN 558 1 series 14 (DIN 32 F4) PN 25 PN PN 10 100 0 100 100 0 0 700 700 700 900 900 900 1 0 1 1 210 0 210 0 0 0 270 270 290 290 310 310 430 430 470 470 510 510 210 0 0 270 290 310 430 470 510 630 710 750 790 870 5 360 5 2 5 2 425 0 0 485 555 455 455 6 5 505 730 580 565 845 715 670 960 840 780 1085 910 895 1185 1025 1015 13 15 1115 55 10 1455 75 1785 15 2115 22 24.5 27.5 22 22 30 24.5 24.5 32 26.5 24.5 36.5 24.5 42 31.5 26.5 46.5 36 30 51 39.5 32.5 55.5 43 35 60 46.5.5 50 40 45 46 47.5 49 52 31 31 31 41 31 50 31 50 41 57 41 41 50 50 8 8 6 0 2 295 3 386 425 454 490 554 6 714 775 827 959 69 1326 1470 8 8 6 0 2 295 3 386 425 5 490 554 6 714 775 827 959 69 1326 1470 8 8 8 24 24 24 24 24 24 32 36 36 40 6 0 2 295 3 386 425 454 490 554 6 714 775 827 959 69 1326 1470 0 430 295 295 310 240 180 240 180 0 660 525 515 470 460 490 410 355 875 770 725 770 650 6 450 330 615 25.5 565 450 330 640 30 31 585 450 330 670.5 10 1050 1050 1170 10 1380 1590 1700 18 1 0 1 1 630 710 750 790 870 1485 85 18 30 2130 57 60 62.5 65 70 50 50 57 57 57 32 36 36 40 1 1590 1710 18 1 1 1 630 710 790 870 1530 1755 75 25 69 74 81 88 57 62 62 70 32 36 40 14 40 1860 70 1090 950 950 990 840 840 mm mm mm mm mm mm mm DN e1 136 180 217 257 298 332 368 407 4 517 598 681 752 825 987 1142 18 97 1460 136 180 217 257 298 339 5 4 466 547 605 686 757 8 1002 1147 26 1 1468 17 52 74 1 7 9 246 435 555 758 1026 60 1870 2742 38 39 5210 1 187 227 270 311 357 395 435 474 630 7 787 870 1025 1185 48 1322 1477 18 38 56 81 151 7 1 1 266 457 6 855 1140 1410 52 3030 3580 4249 5658 89 1 140 1 175 5 4 267 293 6 405 427 405 487 589 593 573 564 89 1 140 1 175 5 4 267 293 6 405 427 405 487 589 593 573 564 89 1 140 1 175 5 4 267 293 6 405 427 405 487 589 593 573 564 0 0 0 0 0 0 700 700 700 1 135 214 226 241 301 352 394 457 590 695 763 785 987 1179 15 22 1304 135 214 226 241 301 352 394 457 590 695 763 785 987 1179 15 22 1304 135 214 226 241 301 352 394 457 590 695 763 785 987 1179 15 22 1304 100 100 100 0 0 0 180 180 180 0 0 0 225 225 225 330 330 330 450 450 450 685 780 8 17 52 74 105 1 155 1 226 383 525 722 980 1180 1746 2608 3082 13 4974 450 275 450 275 450 275 1 685 780 8 1 685 780 8 mm mm mm mm mm mm mm Kg e4 e3 e2 a h3 h2 h1 Wgt..4 69 94 115 142 5 215 261 3 364 406 506 605 646 695 810 2.5 2.5 2.5 13 13 13 25 25 25.4 69 94 115 142 5 215 261 3 364 406 506 605 646 695 810 51.5 66.5 79 111 51.5 66.5 79 111 51.5 66.5 79 111.4 69 94 115 142 5 215 261 3 364 406 506 605 646 695 810 0 750 1865 77.5 62 36 1750 Dimensions for working pressure 40 bars and higher as per request Tilting Disk Check Valves MB0717
Installation of TiltingDisc Check Valves Horizontal pipeline: Pos. 1 Counter weight and lever on the right hand side of the valve in flow direction Pos. 2 Counter weight and lever on the left hand side of the valve in flow direction. Vertical pipeline with flow direction upward: Pos. 3 Pos. 4 Vertical pipeline with flow direction downward: Pos. 5 Pos. 6 Note: Normally the lever and counter weight of all nonreturn valves with counter weight are assembled as shown in Pos.2. (Horizontal line) For other valve positions, the lever should be assembled according to the valve positions as shown in the above figures. 7 MB0717
Conditions for installation of flanged type Butterfly valve next to TiltingDisc Check Valve and Lever Tilting disc Nonreturn valve With counter weight Spacer pipe Flanged type Butterfly valve For installation of nonreturn valve adjacent to a butterfly valve, the weight lever of the TiltingDisc Check Valve must be on the left hand side in flow direction and the gearbox of the butterfly valve on the right hand side to prevent collision of the weight lever with the gearbox of the butterfly valve. DN 100 0 450 700 900 1 1 1 L L1 a b c mm mm mm mm mm 0 210 0 270 69 2 290 0 94 25 310 330 225 0 115 143 40 58 5 65 225 95 430 272 25 1 470 315 13 510 650 380 25 180 630 710 790 870 750 900 1100 1 1 4 515 615 705 815 62 80 90 110 210 0 0 455 455 8 MB0717
TiltingDisc Check Valves with Hydraulic Damping System Mirab TiltingDisc check valves with counter weight can be equipped with hydraulic damping system for adjusting the closing time. With the damping system the opening and closing time can be reduced, and the water hammer effect can be prevented by reducing the damping time. Application: To provide nonslam performance in places where water return through the valve is permitted. A flow control valve can adjust the opening and closing speed of check valve disc. Application examples: Water supply line with pumps installed in parallel When the pump is turned off and the flow direction reversed, the valve closes, and if the valve does not have a damping mechanism, the resultant force could damage the system. In this case, the reverse pressure would be equal to the pump pressure. Water supply line with long pipe and high elevation Pumping to high elevation. Quick change in flow direction which results in extensive force. In this situation the amount of reverse pressure on the closed disk is caused by the amount of water column. 9 MB0717
Selection of TiltingDisc Check Valves with Hydraulic Damping System Order for TiltingDisc check valve with damping device should contain back (or differential) pressure. If the standard types are equipped with hydraulic damping device on one side, due to shaft dimensioning and material, the maximum admissible back pressure is limited according to the table below: DN [mm] Maximum admissible back pressure [bar] 0 450 700 900.5 14.5 7.1 8.5 5.4 3.6 4.6 3.3 3.2 3.1 2.9 2.9 2.9 2.6 2 1 to 1 If the TiltingDisc Check Valve is equipped with damping device on both sides, the maximum admissible back pressure will be doubled in the above table. Types for higher back pressure upon request. Illustration of tilting disc with counter weight of DN and PN 10 installed in horizontal position. Due to geometrical similarity, this graph could also be used for other valve sizes. pressure loss ΔP (mm WC) opening degree φ Fluid speed (m/s) Pressure loss when the valve is fully open 10 MB0717
TiltingDisc Check Valves with Hydraulic Damping System Type 1 This design of TiltingDisc check valve with damping system produce in Mirab valve as routine product.this valve's function is very smooth & easy. Damping system works while closing & The closing time is adjustable by move the weights on lever, also the cylinder orifice is exchangeable. 11 MB0717
Damping system installation on body, Type 1 Pos. 2 The damping system & the weight are located on left side of flow Pos. 1 The damping system & the weight are located on right side of flow Pos. 3 The damping system & the weight are located on left side of flow Pos. 4 The damping system & the weight are located on right side of flow Pos. 5 The damping system & the weight are located on left side of flow Pos. 6 The damping system & the weight are located on right side of flow MB0717
Mechanism and operation of Tiltingdisc Check Valve with Damping Cylinder, Type 2 This type of TiltingDisc check valve with damping system are manufactured based on request. Damping system works in this type in open or close position. Damping system is equipped with hydraulic flow control valve which can adjust the close or open time of easily. Flow control valve Check valve TiltingDisc Check valve in damped open position TiltingDisc Check valve in 50% open position TiltingDisc Check valve in damped closed position Closed Open Open damped opening zone travel damped damped closed Closed Closing time can be adjusted to 30seconds max. as standard, by a flow control valve. 13 MB0717
Positions of Hydraulic Cylinder on TiltingDisc Check Valve, Type 2 Horizontal pipeline: Pos. 1 Weight and damping on the left side of the valve in flow direction Pos. 2 Weight and damping on the right side of the valve in flow direction Pos. 3 Weight and damping on both sides of the valve Vertical pipeline with flow direction upward Pos. 4 Vertical pipeline with flow direction downward: Pos. 5 Pos. 6 Weight and damping on both side of the valve Pos. 7 Pos. 8 Please indicate position of damping system in your order. Note: Normally,Mirab products are made according to the horizontal lines. Pos. 9 Weight and damping on both sides of the valve 14 MB0717
Damping time adjustment The valve opening and closing speed can be adjusted by damping time at the flow control valve Damping Time [s] Valve adjustment [Turns] CAUTION If the TiltingDisc Check Valve is equipped with mounted oleo hydraulic damping device on both sides, the flow control valve of both oleo hydraulic damping devices must be adjusted at the same time. 15 Mirab can change the dimensions without any notice. We are not responsible for any error in printing. MB0717
MIRAB Co' PRODUCTS Butterfly Valves Family: Double Flanged Type, Short body, Wafer Type, Lug Type,Sea Water Type, Counter Weight & Hydraulic Actuated Type. Gate Valves Family: SoftSealing Gate Valve, Metal Seat Gate Valve, Knife Gate Valve, Penstock Sluice Gate Valve. Non Return Valves Family: Tilting Disc, Swing Check Valve, Silent Check Valve, Foot Valve, Nozzle Check Valve, Flap Valve. Air Vent Family:Single ChamberDouble Orifices Triple Function Air Valve, Double ChambersDouble Orifices Triple Function Air Valve, Triple Function Air Sewage Valves SingleChamber type, LargeOrifice Air Valve. Control Valves Family: Automatic Control Valves, Needle Valve, Globe Valve, Fixed Cone Free Discharge Valve, Hollow Jet Valve, Sleeve Valve. Hydrant Valves Family: Dry Fire Hydrant Valves (Standing & Pit Type), Wet Barrel Fire Fighting Valve, Post Indicator Valve. Strainers Family: Y Type, T Type, One Side Flanged Type. Fittings Family: Dismantling Joint F1&F2, Flange, Pipe Coupling. Accessories. Actuators. info@mirabvalves.com