KRAL Screw Pumps for Mechanical Engineering.
Application examples.
KRAL screw pumps have a reputation for the highest quality on the world market. KRAL GmbH is the ideal partner for mechanical engineers who demand quality in their mechanical equipment and plants.
![[Translate to Englisch:] screw_pumps_K_series_most_sold_horizontal.jpg Screw pumps K series most sold horizontal](/fileadmin/_processed_/8/9/csm_kral-baureihe-k_80da17f207.png)
Delivery rate: 5 to 2,900 l/min.
Max. differential pressure: 16 bar.
Temperature range: -20 °C to 180 °C, magnetic coupling to 300 °C.
Housing: Nodular cast iron EN-GJS-400.
Screws: Steel, nitrided.
Approvals: ABS, BV, CCS, DNV, GL, LRS, MRS, NK, RINA.
ATEX: II 2 GD b/c group II,
category 2.
Heating: Electrical, media or steam.
![[Translate to Englisch:] screw_pumps_L_horizontal.jpg screw pumps series L our medium pressure pump](/fileadmin/_processed_/e/8/csm_kral-baureihe-l_34ee51a0ba.png)
Delivery rate: 5 to 200 l/min.
Max. pressure: 63 bar.
Temperature range: -20 °C to 180 °C, magnetic coupling to 300 °C.
Housing: Nodular cast iron EN-GJS-400.
Screws: Steel, nitrided.
Approvals: ABS, BV, CCS, DNV, GL, LRS, MRS, NK, RINA, KR.
ATEX: II 2 GD b/c group II, category 2.
Heating: Electrical, media or steam.
![[Translate to Englisch:] screw_pumps_C_horizontal.jpg screw pump series C in horizontal installation](/fileadmin/_processed_/7/a/csm_kral-baureihe-c_d76079bc74.png)
Delivery rate: CK: 5 to 1,750 l/min / CL & CG: 5 to 3,550 l/min.
Temperature range: -20 °C to 180 °C, magnetic coupling to 300 °C.
Pressure range: 70 bar; 100 bar.
Housing: Nodular cast iron, steel and aluminium.
Screws: Steel, nitrided.
Approvals: ABS, BV, CCS, DNV, GL, LRS, MRS, NK, RINA, KR.
ATEX: II 2 GD b/c group II,
category 2.
Heating: Electrical, media or steam.
API: Manufactured to conform
with API.
![[Translate to Englisch:] screw_pumps_w_horizontal.jpg screw pump series w pump for special requirements](/fileadmin/_processed_/7/7/csm_kral-baureihe-w_a03fe26d03.png)
Delivery rate: 15 to 290 l/min.
Max. differential pressure: 120 bar.
Viscosity: > 1 mm2/sec.
Max. temperature: to 180 °C, magnetic coupling to 300 °C.
Installation: Wet or dry.
Spindle housing: Nodular cast iron EN-GJS-400, polymer-coated or other material options.
Screws: Steel, nitrided.
![[Translate to Englisch:] screw_pumps_z_horizontal.jpg all connections are possible horizontally (inline) and in different angles](/fileadmin/_processed_/9/9/csm_KRAL_2_Schraubenspindelpumpe_01_cd09de5eed.png)
Delivery rate: 330 to 17,660 l/min or 20 to 1,060 m3/h.
Max. differential pressure: 25 bar.
Temperature range: -40 °C to +300 °C.
Housing: Ductile iron or welded steel.
Screws: Solid or engineered.
Approvals: ABS, BV, DNV/GL, LRS, RINA, others on request.
ATEX: II 2 GD b/c group II, category 2.
Heating: Electrical, media or steam.
API: Manufacturing according to API 676 possible.