Product Information

Electric Auto Return Type LTMD/BRM

Worm Reducer Used as Valve Actuator up to 90 Degrees of Valve Opening/Closing Angle

This is a valve actuator that is used for inflow of industrial water, inflow around the filter bed in a water purification plant, adjustment of the flow of cold water and warm water in a local heating and cooling system, and others. In most cases, it is used for the fluid control in large-diameter pipes; therefore, power and large torque are required.

Electric Manual Return Type LTKD/BRM

Features

  • Small & Lightweight Design
    -30% or more of size and -20% or more of weight (compared with our conventional products)
  • Excellent Environmental Resistance
    The gear case is made of corrosion-resistant ductile (FCD450-10) casting.
    It is sealed by O-rings or oil seals to provide dustproof and waterproof structure (standard: IP67, option: IP68).
    Allowable ambient temperature: -25°C to +80°C
  • Abundant Lineups
    Since the number of series is increased as compared with the conventional models, an optimum model can be selected.
  • Compliant with International Flange Standards
    The interface with a valve is based on the international standard ISO 5211.
  • Long-Life Design
    It has excellent strength and durability, because the gear case is tough and ductile, the worm is made of heat-treated carbon steel for machine structural use, and the worm wheel is made of aluminum brass with high wear resistance. Moreover, maintenance is not required for a long time, because long-life multi-purpose lithium-soap-based grease is filled up enough.

Specifications

* For opening/closing time and opening/closing torque, please refer to the Sizing Guide.

Type Output Specifications Mechanical Advantage Input Shaft Mass
(kg)
Allowable Torque (Nm) Gear Ratio Output Flange
Bolt Size
Bolt Tightening Torque
Allowable Valve Rod Diameter (mm) (Reduction Ratio x Efficiency)
Torque No. of Revs
(Nm) (Rev)
BRM-1F 1,000 1/40 F12
M12
32Nm
38 12 83.3 10 13
BRM-1-1BF 1/80 23.3 42.9 20 17.5
BRM-2F 2,000 1/60 F14
M16
76Nm
50 18 111.1 15 19.5
BRM-2-1BF 1/150 43.7 45.8 37.5 24
BRM-3F 3,000 1/60 F16
M20
121Nm
60 18 166.7 15 22
BRM-3-1BF 1/150 43.7 68.7 37.5 26.5
BRM-4F 4,000 1/60 F16
M20
162Nm
75 18 222.2 15 34.5
BRM-4-1BF 1/150 43.7 91.6 37.5 45.5
BRM-5F 5,000 1/60 F20
M16
65Nm
75 18 277.8 15 37.5
BRM-5-1SF 1/150 43.7 114.5 37.5 45.5
BRM-5-1BF 1/150 43.7 114.5 37.5 48.5
BRM-10F 10,000 1/60 F25
M16
105Nm
100
(95)
18 555.6 15 66.5
BRM-10-1SF 1/180 52.4 190.9 45 85
BRM-10-1BF 1/180 52.4 190.9 45 95.5
BRM-18F 18,000 1/60 F30
M20
201Nm
115
(110)
18 1,000 15 116
BRM-18-1SF 1/180 52.4 343.6 45 137
BRM-18-1BF 1/180 52.4 343.6 45 145
BRM-40F 40,000 1/60 F35
M30
562Nm
150
(145)
18 2,222 15 202
BRM-40-1SF 1/240 69.8 572.7 60 232
BRM-40-1BF 1/240 69.8 572.7 60 247
BRM-80F 80,000 1/65 F40
M36
1,182Nm
180 19.5 4,103 16.3 397
BRM-80-1SF 1/260 75.7 1,057 65 443
BRM-80-1BF 1/260 75.7 1,057 65 489
BRM-150F 150,000 1/65 F48
M36
1,242Nm
220 19.5 7,692 16.3 867
BRM-150-1SF 1/325 94.6 1,586 81.3 989
BRM-150-1BF 1/325 94.6 1,586 81.3 1,060

*1. The torque required for driving a valve should be within the allowable torque of BRM.
*2. The number of keys to be used for connecting to the valve stem should be 1 or 2 as appropriate.
Values in parentheses show those obtained when the former JIS key is used.
*3. Even the input type with a mark of x is available specially. Please contact us.
*4. The mechanical advantage means the ratio between input-shaft torque and output-shaft torque (for efficiency, worm gear: 0.3, spur/bevel gear: 0.97).
*5. The input-shaft torque shows the one obtained when the output-shaft torque is within the allowable torque.
*6. Before attaching the BRM to a valve, please ensure that the strength class of a bolt to be tightened is 10.9 or more and the length of engagement is enough. Please also ensure that the tightening torque is equal to or more than the written value.
Note: The above values are subject to change without notice.

Handling-Related Document

  • Sales Agency in Japan

  • enetork This is a sales distributor of transmissions in Kyushu and Yamaguchi regions.It mainly serves as a sales agency for Seibu products.
  • Technical Partner Outside Japan

  • 西電興産株式会社 This is a manufacturer of valve actuator with a top share in South Korea.
  • Wonder Chance Machinery Industrial Co.,LTD This is a manufacturer of valve actuator with a top share in Taiwan.
  • 南京西部瀚乔电机机械有限公司 This is a manufacturer that sells valve actuator in China.
  • 九品股份有公司 This is a manufacturer of gate actuator with a top share in Taiwan
  • Terms and Conditions for Using System