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DFC Rating Selection PDF

The Pembril 'SDFC' Fluid Coupling provides smooth acceleration, overload protection, and allows use of a smaller motor. It withdraws oil during startup to reduce transmitted torque, then returns oil at full speed. Key features include adjustable torque transmission from 120-270%, heat dissipation, and radial removal capability. It is used in applications like conveyors, crushers, mills, centrifuges, mixers, pumps and fans.

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Shyam J Vyas
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0% found this document useful (0 votes)
447 views2 pages

DFC Rating Selection PDF

The Pembril 'SDFC' Fluid Coupling provides smooth acceleration, overload protection, and allows use of a smaller motor. It withdraws oil during startup to reduce transmitted torque, then returns oil at full speed. Key features include adjustable torque transmission from 120-270%, heat dissipation, and radial removal capability. It is used in applications like conveyors, crushers, mills, centrifuges, mixers, pumps and fans.

Uploaded by

Shyam J Vyas
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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PEMBRIL

DELAYED FILLING
CHAMBER FLUID
COUPLINGS
Type SDFC Sizes 290 To 1040

The Pembril 'SDFC' Fluid Coupling when used in conjunction with a The main features of Pembril 'SDFC' Fluid Coupling are -
fixed motor will give the motor a light toad start, provides smooth 1. Torque transmission capacity can be monitored in the range of
acceleration and ensure overload protection for the motor and driven 120 to 270%.
machine. Using a Fluid Coupling in the drive line often makes it
2. Progressively increases the torque applied to the machine.
possible to employ a smaller motor because the Fluid Coupling allow
3. Design to achieve good heat-dissipation
the Motor to run quickly upto the speed, where its overload capacity
may be used for starting the machine. 4. Solid Shaft design for Radial Removal Facility

Pembril 'SDFC' Fluid Couplings are installed between coaxial shaft. 5. Motor start up under off load condition.
Normally 'SDFC' Fluid Coupling is mounted between the motor and 6. Increases acceleration time.
machine shaft and connected by flexible couplings, which absorb the 7. Overload protection.
small assembly misalignments. During starting condition 'SDFC' 8. Very high efficiency due to low slip at rated duty.
Fluid Coupling Chamber withdraws the small quantity of oil from main
9. Coupling can be removed without disturbing the Motor and
circuit to reduce transmitted torque.
Machine foundation due to solid shaft design and flexible
After motor reaches the full speed, this retained oil flows back into couplings.
main circuit which entirely depends on the slip. Optional Accessories :
The 'SDFC' Fluid Coupling is rugged unit. The major components
1. Fusible Trip device Assembly
being made from Aluminium Alloy Casting, it comprises basic Fluid
2. Brake drum
Coupling, with the added advantage of Delyed Chamber and Flexible
Coupling. Flexible coupling on both sides. Bore and keyways may be 3. Oversize Half Coupling to accomodate larger shaft dia.
finished to suit the customer requirement. Filling and Fusible plugs Typical Applications :
are fitted on the casing wall and the periphery of the coupling. Conveyors, Crushers, Ball mills, Ring granulators, Centrifuges,
Mixers, Pumps, Fans and other industrial drives.
PEMBRIL
DELAYED FILLING
CHAMBER FLUID
COUPLINGS
Type SDFC Sizes 290 To 1040

Selection Data
Max. Transmission Capacity in kW at various speeds-RPM

Size 720 870 960 1450 1750 2950


290 2.80 4.56 5.90 22.00 32.00 73.00
320 4.00 7.00 10.00 34.00 56.00 85.00
370 5.92 11.20 15.83 56.00 100.0 140.0
410 10.87 19.18 26.00 89.00 140.0 275.0
450 16.67 29.52 39.73 134.0 185.0 450.0
500 30.90 55.5 74.1 175.0 275.0
580 59.80 105.2 143.0 346.0 500.0
660 105.3 187.0 255.0 600.0 700.0
740 199.5 337.0 388.0 783.0
810 290.0 490.0 600.0 1150
910 532.0 760.0 860.0
1040 870.0 1150 1252

The chart may be used for selecting 'SDFC' Fluid Coupling. It shows
C

N
A

W1 maximum operating power ratings for approved applications with


W2
direct on started squirrel cage motors, allow for 2 to 4% slip in fluid
coupling - low to high loadings.

C&D - Maximum bore with standard keyways,


W - Approx total weight of unit without oil-kgs.
G2 W1 - Weight reaction on driving machine - kgs.
W2 - Weight reaction on driving machine - kgs.
L1 E L2 W3 - Approx total weight of unit with oil - kgs.
Z1 - Moment of inertia of fluid Cplg, Flex, Cplg without
runner, shaft & oil - kg M2
Z2 - Moment of inertia of shaft and runner of Cplg - Kg M2
Q - Approx max oil quantity - Litres

ALL DIMENSIONS ARE IN MM (TECHNICAL DATA)

Size A C D E G2 L1 L2 N W W1 W2 W3 Z1 Z2 Q FLEX CPLG


290 340 55 60 289 9.5 51 51 165 36 28.5 12 40.5 0.95 0.325 4.5 HBC200
320 380 55 60 312 9.5 51 51 165 47 38 16.2 54.2 1.48 0.415 7.2 HBC200
370 434 70 70 355 12.7 54 67 191 72 58.5 24.3 82.8 2.80 0.690 10.8 HBC222
410 454 75 70 392 12.7 60 67 191 96 86.8 25 111.8 4.95 0.975 15.8 HBC238
450 521 85 80 430 12.7 67 70 222 130 113.5 37 150.5 7.10 2.565 20.5 HBC260
500 595 95 80 442 12.7 86 70 222 173 160.8 43 203.8 13.2 3.4 30.8 HBC308
580 660 115 100 506 19 95 95 260 245 227 65 292 36.5 7.0 47.0 HBC358
660 749 115 100 550 19 95 95 260 321 298 91 389 40.0 10.26 68.0 HBC358
740 838 115 115 631 22 95 114 324 365 354 100 454 68 19.85 89.0 HBC358
Pratisaad/04/05

810 914 115 115 654 22 95 114 324 649 565 204 769 107 31.5 120 HBC358
910 1032 140 150 768 22 114 140 381 815 719 250 969 205 43 154 HBC467
1040 1162 170 150 804 22 127 140 381 1055 933 340 1273 290 78.8 218 HBC508

Premium Transmission Limited


Head Office : Premium House, Mumbai-Pune Road, Chinchwad, Pune - 411019, India. Tel. : (91-20) 27488886 / 27488947, Fax : (91-20) 27450287 / 27472384. Website : www.premiumtransmission.com
Manufacturing Units : Unit-I : Old Mumbai - Pune Road, Chinchwad, Pune - 411 019, India. Tel. : 91-20- 66314100 Fax : 91-20- 27450287, 27472384. Unit-II : Falta Industrial Growth Centre, Sector-III, Falta, 24 Parganas (South), West Bengal
743504, India. Tel.: 91-3174-222231 / 32 / 33 / 37, Fax : 91-31749 222234. Unit-III : G-56 / 57, MIDC Industrial Area, Chilkalthana, Aurangabad - 431 210, India. Tel.: 91-240-2485521, 2485856, 2485056, Fax : 91-240-2485756. Unit-IV : 31-P, MIDC
Industrial Area, Chilkalthana, Aurangabad - 431 210, India. Tel.: 91-240-2482858, 2471298, Fax : 91-240-2482857.

Regional Offices : Mumbai : Corporate Park II, 4th Floor, Sion, Trombay Road, Chembur, Mumbai - 400071, India. Tel.: 91-22-25264750, 25264763, Fax : 91-22-25262622, 25264800. New Delhi : Express Building Annexe, 9-10, Bahadhur Shah Zafar
Marg, New Delhi - 110 002, India. Tel. : 91-11-23730554 (8 Lines), Fax : 91-11-23359782 / 23357739. Kolkata : Thapar House, 25, Brabourne Road, Kolkata - 700 001, India. Tel.: 91-33-22424316, 22423780, 22423805, 22424317 / 20 / 21, 22438815,
22420817, Fax : 91-33-22424325. Chennai : "Wavoo Mansion", 7th Floor, New No. 48 (Old No. 39) Rajaji Salai, Chennai - 600 001, India. Tel.: 91-44-25255200, 91-44-25224557. Nagpur : Plot No 15, State Bank Colony, Ujjwal Nagar, Somalwada, Wardha
Road, Nagpur - 25. Mobile : (0) 9425009827

Branch Offices : Ahmedabad : ‘Jaldarshan' Ashram Road, Navrangpura, Ahmedabad - 380 009, India. Tel.: 91-79-26580428 / 0518 / 1856 / 1857 / 1861, Fax : 91-79-26587783. Bangalore : 16/3, Ali Asker Road, Off Cunningham Road, Bangalore - 560
052, India. Tel.: 91-80-22262062, Fax : 91-80-22253472. Hyderabad : 6-2-47, A, C. Guards, 1st Floor, Hyderabad - 500 004, India. Tel.: 91-40-23314025, 23316446, 23390544, Fax : 91-40-23318557. Kochi : 39/5567, M. G. Road, Emakulam, Kochi - 682
015, India. Tel.: 91-484-2359661, 2359372, 2359190, Fax : 91 484-2359589.

Representative Offices : Lucknow : G-901, Halwasiya Utsav Enclave, Opposite HAL, Faizabad Road, Lucknow - 226 016, India. Tel.: 91-522-4001344, Mobile : (0) 9793581144. Mohali : House No. 33, 1st Floor, Phase - XI, Sas Nagar (Mohali), Punjab
- 160 062, Tel.: 91-172-2230633, Mobile : (0) 9814640863. Jamshedpur : Flat No. 61 A, First Floor, Rajendranagar Colony, Sakchi, Jamshedpur 831001, Jharkhand. Mobile : (0) 9771844408. Rourkela : A/72, Sector - 13, Rourkela - 769009. Orissa.
Mobile : (0) 9437122066. Jaipur : B-1A, Vivekanand Colony, Naya Kheda Near Ambabari, Jaipur - 302012, Rajasthan. Mobile : (0) 9887720845. Coimbatore : Door no. 55, Rangsamy Layout, Pellamedu, Coimbatore - 641004. Mobile : (0) 9894295769.
Baroda : B 24, Deep Darshan 1 Society, Ataladra, Padra Road, Baroda, Gujarat. Mobile : (0) 9375122012. Raipur : A-10, Shubham Vihar, Behind Anmol Super Market, New Puraina, Mahavir Nagar, Raipur - 492 001 Chhatisgarh, Mobile : (0) 9826903132.
Indore : C-6, Shreevardhan Complex, 4, RNT Marg., Indore - 452001. Ph : 0731-2510943. Mobile : (0) 9302690943. Vishakhapattnam : Flat No. 101, Yadu Residency, Rednum Garden, Ramnagar, Vishakhapattnam-530002, Mobile : (0) 9866167594.

Website : www.premiumtransmission.com

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