This document provides information about Talleres Félix Larrinaga, a manufacturer of gearboxes and special components for valves based in Amurrio, Spain. It was founded in 1974 and produces multi-turn and quarter-turn gearboxes along with special machined parts. The gearboxes are available in standard and customized models for applications in oil/gas, offshore, chemical and other industries. Materials include carbon steel, stainless steel, and alloys.

1. TFL
Talleres Félix Larrinaga
Manufacturer of
Gearboxes & Special Components
for Valves
Contact:
José Sáez (Commercial Manager)
+(34) 616 012 369
jose.saez@talleres-flarrinaga.com

2. COMPANY PRESENTATION
• Founded in 1974
• Located in Amurrio (Spain)
• Products for valves
• Multi-turn Gearboxes
• Quarter-turn Gearboxes
• Special machined parts
• ISO 9001 & ATEX certified
• Coating standard C5H. Other options to be specified
• Materials: Carbon steel, stainless Steel, Duplex, superduplex, Inconnel,
Monel, etc.
• Range: Standard / Customised gearboxes
• Oil & Gas, Off-shore, Chemistry, Aluminium Oxide, Hydraulic
infraestructure, Power plants, Solar energy, Cryogeninc,etc.

3. Multi-Turn Gearboxes
• For the most demanding manual & motorised applications
• For gate, globe, knife valves, penstock, etc
• Manual single and double reduction or electrical
operation
• Protection IP67
• Materials for the driving nut aluminium bronce, Ni-resist
type D2 acc to API 600 / BS 1873
• Gear working temperature -20 to +80 ºC
• Output torque up to 1.600 mKg
• Coupling for motorization standard or special design

4. Thrust Capacity
MODEL Ratio
Efficiency
Factor
Nut Br-Al Nut Ni-Rest
OUTPUT
TORQUE
Max.
Threaded
Stem Diam
Max. Keyed
Stem Diam
Kg m mm mm
FL0-4 4:1 3,2 8.000 8.000 50 40 30
FL0-4-1 4:1 3,2 8.000 8.000 50 40 30
FL1-4 4:1 3,2 18.200 13.600 103 54 45
FL1-6 6:1 4,8 18.200 13.600 103 54 45
FL2-4 4:1 3,2 36.300 25.600 207 64 53
FL3-4 4:1 3,2 45.400 45.400 414 83 69
FL4-6 6:1 4,8 82.500 82.500 775 96 78
FL5-6 6:1 5,4 120.000 120.000 1250 110 89
FL6-6 6:1 5,4 180.000 180.000 1600 125 101
Materials
MODEL Base Housing Wheel Pinion
FL0 Cast Iron Cast Iron F-1140 F-1150
FL1 Cast Iron Cast Iron F-1140 F-1150
FL2 Cast Iron Cast Iron F-1140 F-1150
FL3 Nodular Cast Cast Iron F-1580 F-1580
FL4 Nodular Cast Cast Iron F-1580 F-1580
FL5 Nodular Cast Cast Iron F-1580 F-1580
FL6 Nodular Cast Cast Iron F-1580 F-1580
Another
materials
available
on
demand
Multi-Turn Gearboxes

5. Quarter-Turn Gearboxes
• For ball, butterfly, plug valves, etc
• Manual single and double reduction or electrical operation
• Protection IP67
• Materials for the quadrant nodular cast iron GG25 &
Worm shaft F-1140
• Gear working temperature -20 to +80 ºC
• Output torque up to 1.330 mKg
• Coupling for motorization standard or special design

6. Quarter-Turn Gearboxes
MODEL RELATION
Nº of
TURNS
INPUT
TORQUE
OUTPUT
TORQUE
BASE
MAX. HOLE
D.
WEIGHT
Kg m Kg m MAX. ISO 5211 Kg
FL.90-00 28:1 7 3 35 F5 / F7 25 2,3
FL.90-01 34:1 8,5 4,5 60 F5/F7 / F10 32 4,1
FL.90-11 43:1 10,75 6 100 F10 / F12 45 9,1
FL.90-20 46:1 11,5 10 165 F12 / F14 52 13,3
FL.90-30 45:1 11,25 14 220
F12 / F14 /
F16 63,5 18,8
FL.90-31 56:1 14 19 365 F14 / F16 70 24,4
FL.90-40 70:1 17,5 19 460 F16 / F25 82,5 37,7
FL.90-50 85:1 21,25 26,5 782 F16 / F25 92 67,8
FL.90-60 100:1 25 38,5 1330 F25 / F30 124 106,6
Second reduction
MODEL RATIO Nº of TURNS
INPUT
TORQUE
MODELO RELACION
Nº de
VUELTAS Kg m
FL.90-30 180:1 45 3,72
FL.90-31 224:1 56 5,05
FL.90-40 280:1 70 5,05
FL.90-50 340:1 85 7,05
FL.90-60 400:1 100 10,24
DIMENSIONS COUPLING FOR
MOTORIZATION
MODEL BASE
ISO 5210
FL.90-00 F7
FL.90-01 F7
FL.90-11 F10
FL.90-20 F10
FL.90-30 F14
FL.90-31 F14
FL.90-40 F14
FL.90-50 F14
FL.90-60 F14

7. Special Components for Valves
Precision Lead Screws & Nuts
Standard / Customised components