Complete KTR Coupling
Complete KTR UL Listed Fire Pump Coupling
PLEASE USE THE ATTACHED SIZING GUIDE TO SELECT YOUR SIZE COUPLING.
WE WILL CONFIRM SELECTION BASED ON INFORMATION PROVIDED, PLEASE PROVIDE AS MUCH INFORMATION AS POSSIBLE
IF YOU ARE UNSURE, PLEASE CONTACT US FOR ASSISTANCE
ROTEX® – couplings are designed to transmit torque between drive and driven components via curved jaw hubs and elastomeric elements, commonly known as spiders. The combination of these components provides dampening and accommodation for misalignments. This product is available in a variety of mounting configurations to meet your specific needs.
KTR ROTEX® couplings are UL Listed and meet the requirements of NFPA 20 - Standard for Installation of Stationary Pumps for Fire Protection, and by completing the required endurance testing of UL 448A, flexible couplings and connecting shafts for stationary fire pumps.
KTR ROTEX couplings are not specifically FM approved, but, they conform to FM Global Property loss prevention Data Sheet 3.7, Section 2.4.4.3 (revision October 2021) which states "Connect the fire pump and driver with a rigid coupling, flexible coupling, or flexible connecting shaft. Do not use all elastomeric couplings...."
- Shipping info
Lead Times
97% of our orders ship within 1 business day. We stock most items in our warehouse and can ship most orders placed before 1pm CST on the same day. Priority is given to orders that select Next Day Air shipping. Items that are made to order will make note of their lead time in the item description.Calibrated gauges may add 2 days to ship time, please contact us or select Next Day Air service if needed immediately.
- Payment methods

- Return Policy
We accept returns
ROTEX® couplings intended for use in electric motor driven shaft-to-shaft stationary fire pumps require: O 92 Sh A spider (T-PUR® Orange) or 94 Sh A-T spider (blue with yellow tips) O Steel hub material with either 2 setscrews 90 degrees apart or cross clamping Coupling selections must be made based on maximum torque rating of the driver (not the pump). Calculated maximum motor torque, adjusted by the safety factor must not exceed the maximum torque rating of the coupling. It is recommended that a torsional analysis to be conducted on the actual drive system arrangement.
Features
- Fail safe
- Reduced maintenance – no lubirication
- Curve jaw construction
- Ease of assembly
- Torsionally flexible / vibration-damping
- Steel hubs
- Standard hub with 2 setscrews
- Available in both inch and Metric bores
NOTE: All coupling keyways conform to AGMA Class 1 Clearance Fit Standards
Lead Times
97% of our orders ship within 1 business day. We stock most items in our warehouse and can ship most orders placed before 1pm CST on the same day. Priority is given to orders that select Next Day Air shipping. Items that are made to order will make note of their lead time in the item description.
Calibrated gauges may add 2 days to ship time, please contact us or select Next Day Air service if needed immediately.
Shipping Locations
eFirePump.com is located in the central United States, we can ship quickly to anywhere in North America. At this time, eFirePump.com ships merchandise to locations within the United States and U.S. territories, including Alaska, Hawaii, Puerto Rico, Guam, and the US Virgin Islands. Additionally, eFirePump.com ships merchandise to Canada and Mexico.Other international locations may not be able to purchase through this website and should contact us for purchasing inquiries.
Shipping & Delivery
The risk of loss and title for all merchandise ordered on this Web site pass to you when the merchandise is delivered to the shipping carrier.
Puerto Rico Customers
Puerto Rico orders must choose US Postal Service for shipping. Orders placed with UPS may be shipped via Postal Service at our discretion.
We will honor reasonable requests to return merchandise based on manufacturing defects only, upon which we will provide a refund or replacement per instance. eFirePump.com is not responsible for the cost of shipping on returned merchandise. In some instances a restock fee may be charged. We will always do our best to reach an amicable resolution.













