Alfa Laval LKH Series Pumps
The LKH family is a comprehensive line of sanitary centrifugal solutions. Each pump is designed to meet the hygienic requirements of the dairy, food and beverage, and personal care industries. LKH centrifugal pumps increase process productivity while providing high efficiency and gentle product handling.
LKH pumps are among the most efficient centrifugal pumps available today. Standard, Prime, and UltraPure feature a truly front-loading seal. And, since the LKH series spans many sizes, you always have the most efficient pump for your centrifugal needs.
Models
- LKH Standard
- LKH Prime
- LKH UltraPure
- LKH Multi-Stage
- LKH Evap
- LKHPF High Pressure
LKH is available sizes -5, -10, -15, -20, -25, -35, -40, -45, -50, -60, -70, -80, and -90
Alfa Laval is a leading global supplier of products and solutions within the key technology areas of heat transfer, separation, and fluid handling.
LKH Series Pumps
Applications
LKH models are highly efficient and economical centrifugal pumps, which meet many sanitary requirements, as well as gentle product treatment and chemical resistance. These pumps are commonly used in hygienic applications including, but not limited to, personal care, food, dairy, beverage, biopharmaceutical, and CIP supply.
Standard Design
The LKH pump consists of a standard motor, stub shaft, mechanical compression coupling (LKH-5 with set screws), adaptor, back plate, impeller, impeller screw, pump casing and shaft seal. (LKH-5 has clamp connection between pump casing and back plate). The LKH pump is designed for CIP with emphasis on large internal roundings and cleanable seals.
Shaft Seals
The LKH pump is equipped with either an external single or a flushed shaft seal. Both have stationary seal rings in acid-resistant steel AISI 329 with sealing surface in silicon carbide and rotating seal rings in carbon. The secondary seal of the flushed seal is a long-lasting lip seal. The pump may also be equipped with a double mechanical shaft seal. Since the LKH uses the same seal over many sizes, it requires fewer spare parts on the shelf.
CONNECTIONS FOR FSS AND DMSS
R 1/8" (BSP) external thread.
Materials
| Product Wetted Steel Parts | 316L |
| Other Steel Parts | 304 |
| Finish | Polished ≤ 32 Ra and 3-A approved |
| Product Wetted Seals | EPDM, FPM (Viton), NBR (Buna or Rubber), or PTFE |
Technical Data
| LKH-5 Max Inlet Pressure | 87 psi |
| LKH-10 – LKH-70 Max Inlet Pressure | 145 psi |
| Temperature Range | 14°F – 284°F (EPDM) |
| Noise Level at 3.3 ft | 60 – 85 dB (A) |
| Water Pressure - Single Flushed Seal | Normally atmospheric max 14.5 psi |
| Water Consumption - Single Flushed Seal | 0.06 – 0.12 gpm |
| Water Pressure (max) - Double Flushed Seal | 72.5 psi |
| Water Consumption - Double Flushed Seal | 0.06 – 0.12 gpm |
Product Resources
See all resources by Alfa LavalLiterature
- Alfa Laval LKH Data Sheet
- Alfa Laval LKH Manual
- Alfa Laval LKH Spare Parts List
- Alfa Laval LKH Prime Data Sheet
- Alfa Laval LKH Prime Manual
- Alfa Laval LKH Ultra Pure Data Sheet
- Alfa Laval LKH UltraPure Manual
- Alfa Laval LKH UltraPure Spare Parts List
- Alfa Laval LKH Multi Stage Data Sheet
- Alfa Laval LKH Multi Stage Manual
- Alfa Laval LKH Multi Stage Spare Parts List
- Alfa Laval LKH Evap Data Sheet
- Alfa Laval LKH Evap Manual
- Alfa Laval LKHPF Data Sheet
- Alfa Laval LKHPF Manual
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Spanish
Blog Posts
- Performance Curves
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- LKH-5 1750 RPM
- LKH-5 3500 RPM
- LKH-10 1750 RPM
- LKH-10 3500 RPM
- LKH-15 1750 RPM
- LKH-15 3500 RPM
- LKH-20 1750 RPM
- LKH-20 3500 RPM
- LKH-25 1750 RPM
- LKH-25 3500 RPM
- LKH-35 1750 RPM
- LKH-35 3500 RPM
- LKH-40 1750 RPM
- LKH-40 3500 RPM
- LKH-45 1750 RPM
- LKH-45 3500 RPM
- LKH-50 1750 RPM
- LKH-50 3500 RPM
- LKH-60 1750 RPM
- LKH-60 3500 RPM
- LKH-70 1750 RPM
- LKH-70 3500 RPM
- LKH-75 1775 RPM
- LKH-90 1775 RPM
Spare Parts
- Seal Kits - LKH-5, 10, 15, 20, 25, 35, 40, 45, 50, 60 - 1-40Hp
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Seal Type C/SC or SC/SC EPDM Buna Viton Single C/SC 9612129609 9612129610 9612129611 Single SC/SC 9612129605 9612129606 9612129607 Flushed C/SC 9612129625 9612129626 9612129627 Flushed SC/SC 9612129629 9612129630 9612129631 Double Mechanical C/SC 9612129613 9612129614 9612129615 Double Mechanical SC/SC 9612129617 9612129618 9612129619 - LKH-5 Service Kits & Spare Parts
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Service Kits
Seal Type C/SIC or SIC/SIC EPDM Buna Viton Teflon Single C/SIC 9611922306 9611922307 9611922308 9611922309 Single SIC/SIC 9611922526 9611922527 9611922528 9611922529 Flushed C/SIC 9611922314 9611922315 9611922316 9611922317 Flushed SIC/SIC 9611922534 9611922535 9611922536 9611922537 Double Mechanical C/SIC 9611922322 9611922323 9611922324 9611922325 Double Mechanical SIC/SIC 9611922542 9611922543 9611922544 9611922545 Spare Parts
- LKH-10, 15 Service Kits & Spare Parts
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Service Kits
Seal Type C/SIC or SIC/SIC EPDM Buna Viton Teflon Single C/SIC 9611922114 9611922115 9611922116 9611922117 Single SIC/SIC 9611922550 9611922551 9611922552 9611922553 Flushed C/SIC 9611922118 9611922119 9611922120 9611922121 Flushed SIC/SIC 9611922558 9611922559 9611922560 9611922561 Double Mechanical C/SIC 9611922210 9611922211 9611922212 9611922213 Double Mechanical SIC/SIC 9611922566 9611922567 9611922568 9611922569 Spare Parts
- LKH-20 Service Kits & Spare Parts
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Service Kits
Seal Type C/SIC or SIC/SIC EPDM Buna Viton Teflon Single C/SIC 9611922122 9611922123 9611922124 9611922125 Single SIC/SIC 9611922574 9611922575 9611922576 9611922577 Flushed C/SIC 9611922126 9611922127 9611922128 9611922129 Flushed SIC/SIC 9611922582 9611922583 9611922584 9611922585 Double Mechanical C/SIC 9611922218 9611922219 9611922220 9611922221 Double Mechanical SIC/SIC 9611922590 9611922591 9611922592 9611922593 Spare Parts
- LKH-25 Service Kits and Spare Parts
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Service Kits
Seal Type EPDM Buna Viton Teflon Single 9611922182 9611922183 9611922184 9611922185 Flushed 9611922190 9611922191 9611922192 9611922193 Double Mechanical 961192226 9611922227 9611922228 9611922229 Spare Parts
Part 3-5 Hp 7.5-10 Hp 15-20 Hp Diagram Key Compression Ring w/ Thread 9612133602 9612133606 9612133603 5a Compression Ring w/o Thread 9612133702 9612133706 9612133703 5b Screw 9611993196 9611992338 9611992338 6 Washer 9611993199 9611993199 9611993199 6a Stub Shaft 9612133102 9612133202 9612133302 7 Connex Pin 9611990622 9611990622 9611990622 8 Drive Ring - Single Seal 9612137701 9612137701 9612137701 10 Drive Ring - Flush Seal 9612139701 9612139701 9612139701 10 Stationary Seal Ring, SC 9612137901 9612137901 9612137901 11 Stationary O-Ring, EPDM 9611992149 9611992149 9611992149 12 Stationary O-Ring, Viton 9611992150 9611992150 9611992150 12 Stationary O-Ring, Buna 9611992151 9611992151 9611992151 12 Stationary O-Ring, Teflon 9611992152 9611992152 9611992152 12 Spring 9612137601 9612137601 9612137601 13 Rotating Seal Ring, Carbon 9612136401 9612136401 9612136401 14 Rotating Seal Ring, SC 9612136402 9612136402 9612136402 14 Rotating O-Ring, EPDM 9611992145 9611992145 9611992145 15 Rotating O-Ring, Viton 9611992146 9611992146 9611992146 15 Rotating O-Ring, Buna 9611992147 9611992147 9611992147 15 Rotating O-Ring, Teflon 9611992148 9611992148 9611992148 15 Adaptor 9612135911 9612135912 9612135913 16 Adaptor Screw 88130173 88130173 88130173 17 Adaptor Spring Washer 88123835 88129835 88129835 19 Adaptor Nut 9611990353 9611990353 9611990353 20 Washer 9611992559 9611992559 9611992559 21 Safety Guard 9612131106 9612131107 9612131108 22 Safety Guard Screw 3146013091 3146013091 3146013091 23 Wingnuts 9611416892 9611416892 9611416892 24 Spring Washer 9611991888 9611991888 9611991888 24a Back Plate Polished 9612138426 9612138426 9612138426 25 Joint Ring, EPDM 9611992983 9611992983 9611992983 26 Joint Ring, Viton 9611992985 9611992985 9611992985 26 Joint Ring, Buna 9611992984 9611992984 9611992984 26 Joint Ring, Teflon 9611992986 9611992986 9611992986 26 Stud Bolt 9611992169 9611992169 9611992169 28 Pump Casing 88339448 88339448 88339448 29 Leg Assembly 9612135920 3146013014 3146013023 30a-35 Impeller Screw 9612139603 9612139603 9612139603 36 Impeller Polished, Full 9612425216 9612425216 9612425216 37 Impeller O-Ring, EPDM 9611992145 9611992145 9611992145 38 Impeller O-Ring, Viton 9611992146 9611992146 9611992146 38 Impeller O-Ring, Buna 9611992147 9611992147 9611992147 38 Impeller O-Ring, Teflon 9611992148 9611992148 9611992148 38 Seal Housing - Double Mechanical 9612133902 9612133902 9612133902 40a Seal Housing - Flushed 9612133901 9612133901 9612133901 40b Screw for Seal Housing 9611990203 9611990203 9611990203 41 Water Flush Pipe 3145700561 3145700561 3145700561 42 Lip Seal 3144600882 3144600882 3144600882 43 Seal Housing O-Ring 9611992153 9611992153 9611992153 44 Drive Ring O-Ring 9611992145 9611992145 9611992145 45 O-Ring 9611995156 9611992156 9611992156 50 Sec. Stationary Seal Ring, SC 9612138302 9612138302 9612138302 51 Spacer 9612308901 9612308901 9612308901 52 - LKH-35 Service Kits & Spare Parts
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Service Kits
Seal Type EPDM Buna Viton Teflon Single 9611922182 9611922183 9611922184 9611922185 Flushed 9611922190 9611922191 9611922192 9611922193 Double Mechanical 9611922226 9611922227 9611922228 9611922229 Spare Parts
- LKH-40 Service Kits & Spare Parts
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Service Kits
Seal Type C/SIC or SIC/SIC EPDM Buna Viton Teflon Single C/SIC 9611922130 9611922131 9611922132 9611922133 Single SIC/SIC 9611922623 9611922624 9611922625 9611922626 Flushed C/SIC 9611922134 9611922635 9611922136 9611922137 Flushed SIC/SIC 9611922631 9611922632 9611922633 9611922634 Double Mechanical C/SIC 9611922234 9611922235 9611922236 9611922237 Double Mechanical SIC/SIC 9611922639 9611922640 9611922641 9611922642 Spare Parts
- LKH-45 Service Kits & Spare Parts
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Service Kits
Seal Type C/SIC or SIC/SIC EPDM Buna Viton Teflon Single C/SIC 9611922182 9611922183 9611922184 9611922185 Single SIC/SIC 9611922598 9611922599 9611922600 9611922601 Flushed C/SIC 9611922190 9611922191 9611922192 9611922193 Flushed SIC/SIC 9611922606 9611922607 9611922608 9611922609 Double Mechanical C/SIC 9611922226 9611922227 9611922228 9611922229 Double Mechanical SIC/SIC 9611922614 9611922615 9611922616 9611922617
Spare Parts
- LKH-50 Service Kits & Spare Parts
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Service Kits
Seal Type C/SIC or SIC/SIC EPDM Buna Viton Teflon Single C/SIC 9611922130 9611922131 9611922132 9611922133 Single SIC/SIC 9611922623 9611922624 9611922625 9611922626 Flushed C/SIC 9611922134 9611922635 9611922136 9611922137 Flushed SIC/SIC 9611922631 9611922632 9611922633 9611922634 Double Mechanical C/SIC 9611922234 9611922235 9611922236 9611922237 Double Mechanical SIC/SIC 9611922639 9611922640 9611922641 9611922642 Spare Parts
- LKH-60 Service Kits & Spare Parts
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Service Kits
Seal Type C/SIC or SIC/SIC EPDM Buna Viton Teflon Single C/SIC 9611922130 9611922131 9611922132 9611922133 Single SIC/SIC 9611922623 9611922624 9611922625 9611922626 Flushed C/SIC 9611922134 9611922135 9611922136 9611922137 Flushed SIC/SIC 9611922631 9611922632 9611922633 9611922634 Double Mechanical C/SIC 9911922234 9611922235 9611922236 9611922237 Double Mechanical SIC/SIC 9611922639 9611922640 9611922641 9611922642 Spare Parts
- LKH-70 Service Kits & Spare Parts
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Service Kits
Seal Type C/SIC or SIC/SIC EPDM Buna Viton Teflon Single C/SIC 9611922238 9611922239 9611922240 9611922241 Single SIC/SIC 9611922643 9611922644 9611922645 9611922646 Flushed C/SIC 9611922242 9611922243 9611922244 9611922245 Flushed SIC/SIC 9611922647 9611922648 9611922649 9611922650 Double Mechanical C/SIC 9611922416 9611922417 9611922418 9611922419 Double Mechanical SIC/SIC 9611922651 9611922652 9611922653 9611922654 Spare Parts
- LKH-112 Service Kits & Spare Parts
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Service Kits
Seal Type C/SC or SIC/SIC EPDM Buna Viton Single C/SC 9611922096 9611922097 9611922098 Single SIC/SIC 9611922655 9611922656 9611922657 Flushed C/SC 9611922099 9611922100 9611922101 Flushed SIC/SIC 9611923658 9611922659 9611922660 Spare Parts
Part 7.5-10 Hp 15-25 Hp Diagram Key Screw 9611993240 9611993241 4 Nut for Adaptor 9611990587 9611992160 7 Washer for Adaptor 9611990676 9611991886 8 Compression Ring with Thread 9612133605 9612133603 9 Connex Pin 9611990622 9611990622 10 Shaft with Pin for Flushed Seal 9612362001 9612362101 11 Shaft with Pin 9612362004 9612362104 11 Key 9611992756 N/A 12 Compression Ring without Thread 9612133706 9612133706 13 Screw 9611993197 9611993197 15 Washer 9611993199 9611993199 15a Screw for Adaptor Guard 9611993239 9611993239 16 Adaptor Guard 9612131107 9612131108 17 Adaptor 9612342501 9612342601 18 Screw for Adaptor 9611992162 9611992163 19 Nut 9611990353 9611990353 20 Washer 9611992559 9611992559 21 Cap Nut 9611992593 9611992593 29 Washer 9611991887 9611991887 30 Back Plate 9612389214 9612389214 31 O-Ring, EPDM 9611992744 9611992744 32 O-Ring, NBR 9611992745 9611992745 32 O-Ring, FPM 9611992746 9611992746 32 Spacing Ring 9612362501 9612362501 35 Rotating Seal Housing 9612362401 9612362401 38 Impeller 88341471 88341471 40 O-Ring, EPDM 9611992750 9611992750 41 O-Ring, NBR 9611992751 9611992751 41 O-Ring, FPM 9611992752 9611992752 41 Pump Casing, Tri-Clamp 9612388904 9612388904 42 O-Ring, EPDM 9611992747 9611992747 43 O-Ring, NBR 9611992748 9611992748 43 O-Ring, FPM 9611992749 9611992749 43 Guide Vanes, Interplate 9612361301 9612361301 44 Impeller 9612360501 9612360501 45 Impeller Screw 9612362701 9612362701 47 Bolt 9612363501 9612363501 48 Pump Cover, Tri-Clamp 9612389304 9612389304 49 Leg Assembly 3146013014 3146013023 50-58 - LKH-113 Service Kits & Spare Parts
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Service Kits
Seal Type C/SC or SIC/SIC EPDM Buna Viton Single C/SC 9611922102 9611922103 9611922104 Single SIC/SIC 9611922661 9611922662 9611922663 Flushed C/SC 9611922105 9611922106 9611922107 Flushed SIC/SIC 9611922664 9611922665 9611922666 Spare Parts
Part 7.5-10 Hp 15-25 Hp Diagram Key Screw 9611993240 9611993241 4 Nut for Adaptor 9611990587 9611992160 7 Washer for Adaptor 9611990676 9611991886 8 Compression Ring with Thread 9612133605 9612133603 9 Connex Pin 9611990622 9611990622 10 Shaft with Pin for Flushed Seal 9612362002 9612362102 11 Shaft with Pin 9612362005 9612362105 11 Key 9611992757 9611992757 12 Compression Ring without Thread 9612133706 9612133703 13 Screw 9611993197 9611993198 15 Washer 9611993199 9611993199 15a Screw for Adaptor Guard 9611993239 9611993239 16 Adaptor Guard 9612131107 9612131108 17 Adaptor 9612342501 9612342601 18 Screw for Adaptor 9611992162 9611992163 19 Nut 9611990353 9611990353 20 Washer 9611992559 9611992559 21 Cap Nut 9611992593 9611992593 29 Washer 9611991887 9611991887 30 Back Plate 9612389214 9612389214 31 O-Ring, EPDM 9611992744 9611992744 32 O-Ring, NBR 9611992745 9611992745 32 O-Ring, FPM 9611992746 9611992746 32 Spacing Ring 9612362501 9612362501 35 Rotating Seal Housing 9612362401 9612362401 38 Impeller 88341471 88341471 40 O-Ring, EPDM 9611992750 9611992750 41 O-Ring, NBR 9611992751 9611992751 41 O-Ring FPM 9611992752 9611992752 41 Pump Casing, Tri-Clamp 9612388904 9612388904 42 O-Ring, EPDM 9611992747 9611992747 43 O-Ring, NBR 9611992748 9611992748 43 O-Ring, FPM 9611992749 9611992749 43 Guide Vanes, Interplate 9612361301 9612361301 44 Impeller 9612360501 9612360501 45 Interplate Casing 9612361001 9612361001 46 Impeller Screw 9612362701 9612362701 47 Bolt 9612363502 9612363502 48 Pump Cover, Tri-Clamp 9612389304 9612389304 49 Leg Assembly 3146013014 3146013023 50-58 - LKH-114 Service Kits & Spare Parts
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Service Kits
Seal Type C/SC or SIC/SIC EPDM Buna Viton Single C/SC 9611922108 9611922109 9611922110 Single SIC/SIC 9611922667 9611922668 9611922669 Flushed C/SC 9611922111 9611922112 9611922113 Flushed SIC/SIC 9611922670 9611922671 9611922672 Spare Parts
Part 7.5-10 Hp 15-25 Hp Diagram Key Screw 9611993240 9611993241 4 Nut for Adaptor 9611990587 9611992160 7 Washer for adaptor 9611990676 9611991886 8 Compression Ring with Thread 9612133605 9612133603 9 Connex Pin for Flushed Seal 9611990622 9611990622 10 Shaft for Single Shaft Seal 9612362003 9612362103 11 Shaft with Pin for Flushed Seal 9612362006 9612362106 11 Key 9611992758 9611992758 12 Compression Ring without Thread 9612133706 9612133703 13 Screw 9611993197 9611993198 15 Washer 9611993199 9611993199 15a Screw for Adaptor Guard 9611993239 9611993239 16 Adaptor Guard 9612131107 9612131108 17 Adaptor 9612342501 9612342601 18 Screw for Adaptor 9611992162 9611992163 19 Nut 9611990353 9611990353 20 Washer 9611992559 9611992559 21 Cap Nut 9611992593 9611992593 29 Washer 9611991887 9611991887 30 Back Plate 9612389208 9612389208 31 O-Ring, EPDM 9611992744 9611992744 32 O-Ring, NBR 9611992745 9611992745 32 O-Ring, FPM 9611992746 9611992746 32 Spacing Ring 9612362501 9612362501 35 Rotating Seal Housing 9612362401 9612362401 38 Impeller 88341471 88341471 40 O-Ring, EPDM 9611992750 9611992750 41 O-Ring, NBR 9611992751 9611992751 41 O-Ring, FPM 9611992752 9611992752 41 Pump Casing, Tri-Clamp 9612388904 9612388904 42 O-Ring, EPDM 9611992747 9611992747 43 O-Ring, NBR 9611992748 9611992748 43 O-Ring, FPM 9611992749 9611992749 43 Guide Vanes, Interplate 9612361301 9612361301 44 Impeller 9612360501 9612360501 45 Intermediate Casing 9612361001 9612361001 46 Impeller Screw 9612362701 9612362701 47 Bolt 9612363503 9612363503 48 Pump Cover, Tri-Clamp 9612389304 9612389304 49 Leg Assembly 3146013014 3146013023 50-58
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