Right Bottom Frame in p09207

Designation ...........................	12RC basic radial piston pump group.
Design ..................................	Radial piston, valve controlled.
No. of pistons ........................	5 or 7; depending upon flow requirement.
Mounting ...............................	Face mounting.
Interface ................................	Factory standard.
Direction of rotation ........... 12RC	Can be run in either direction.
12RCE ......................................	Depends upon the direction of rotation of pump attached.
Connection ................ Suction	G 3/4 female. Suction head -- The oil level can be max. 300 mm below the suction port of the pump. Suction pipe size -- 30 o. d. x 2 th. (as far as possible use straight pipe)
Delivery ..................................	G 1/2 female.
Suction pressure ............................	0.02 to 3 bar positive.
Speed range ..........................	1000 to 2000 rpm.
Hydraulic medium ..................	Mineral oil.
Viscosity range ......................	10 to 100 cSt.
Optimum Viscosity range .......	16 to 32 cSt.
Temperature range ................	-10 °C to +80 °C. (Do not exceed viscosity limits at extreme temperatures for efficient running of the pump)
Fluid cleanliness requirement ..	As per ISO Code 16/13.
Performance ..........................	Refer Table No. 1.
Mass ....................................	30 kg.

Code No.	Geometrical displacement CC / REV	Rated output at 1450 rpm l / min	Rated output at 1450 rpm & 95% efficiency l / min	Operating pressure bar	Input power requirement (@ 1450 rpm)
					50 bar		100 bar		150 bar		200 bar		250 bar		300 bar		315 bar		350 bar		400 bar
					KW	Hp	KW	Hp	KW	Hp	KW	Hp	KW	Hp	KW	Hp	KW	Hp	KW	Hp	KW	Hp
5A	7.7	11.2	10.6	400	1	1.4	2.1	2.8	3.1	4.2	4.1	5.6	5.1	7	6.2	8.4	6.5	8.8	7.2	9.8	8.2	11.1
7A	10.8	15.7	14.9	400	1.4	2	2.9	3.9	4.3	5.9	5.8	7.8	7.2	9.8	8.7	11.8	9.1	12.3	10.1	13.7	11.5	15.7
5B	10.1	14.7	14	315	1.4	1.8	2.7	3.7	4.1	5.5	5.4	7.3	6.8	9.2	8.1	11	8.5	11.6
7B	14.1	20.5	19.5	315	1.9	2.6	3.8	5.1	5.7	7.7	7.5	10.2	9.4	12.8	11.3	15.4	11.9	16.1
5C	12.7	18.5	17.6	250	1.7	2.3	3.4	4.6	5.1	6.9	6.8	9.2	8.5	11.5
7C	17.8	25.8	24.5	250	2.4	3.2	4.7	6.4	7.5	9.7	9.5	12.9	11.9	16.1

Note : For double pumps, the above pump code number needs to be modified in the following manner. The first digit in the code number indicates number of pumping elements in each pump section. The second letter indicates flow and pressure rating of the pumping elements of P1 port end section and the third letter indicates flow and pressure rating of the pump elements of P2 port end section. Code no. 5AC for example, indicates a double pump having a flow and pressure rating of 5A for P1 port end section and 5C rating for P2 port end section.

Note : Torque limitation - The sum of torque used for the piston
pump and torque used at extended shaft end should not exceed 148
Nm ( 22.2 kW @ 1450 rpm )

PRIMING PROCEDURE FOR CLOSED EXECUTION PUMP
A] When the Casing Pump is mounted Horizontally.

Case I : When the pump suction port height exceeds 300 mm above oil level. 1) Provide a check valve with almost zero cracking pressure on the suction pipe. ( Refer check valve model code given below). 2) Fill up the casing with oil using Alternate Suction port - G3/4 & ensure it to be air tight after filling. 3) Connect a hose pipe of suitable size to the air bleeding port - G1/2 & vent it to tank. 4) Now, switch on the motor & wait for some time till you get full / uninterrupted flow. 5) As soon as you get the uninterrupted flow, switch off the motor & plug the Air Bleeding port. 6) Now, run the pump for short period at zero load. 7) Adjust the system main pressure relief valve to required value and start using the system. Case II: When the pump suction port height is less than 300 mm above oil level. 1) The pump need not have a check valve as mentioned in Case I. 2) During commissioning the Air bleeding port should be kept open to tank by connecting a hose pipe. 3) Now, repeat the steps 4 to 7 of Case I.
B] When the Casing Pump is mounted Vertically
	Case I : When the pump is immersed in oil. 1) Make the connection for air bleeding as shown in fig. using the kit provided with the pump. 2) Loosen the Casing air bleeding plug completely. 3) Wait for some time for the oil to fill the pump casing. 4) The plug may now be tightened. 5) Now run the pump for short period at zero load. 6) Adjust the main pressure relief valve of the system to required value and start using the system.
	Case II: When the pump suction port is above oil level. 1) Make the connection for air bleeding as shown in fig. using the kit provided with the pump. 2) Fit a check valve with almost zero cracking pressure at the bottom of the suction pipe. (When suction port height exceeds oil level by 300 mm. ( Refer check valve model codes given below). 3) Now fill the pump casing with oil. This can be done by providing a pipe connection to alternate suction port as shown. 4) Now loosen the casing air bleeding plug completely & fill the casing till oil is seen coming out of casing air bleeding port. 5) Tighten the casing air bleeding plug once the casing is filled. Also, plug the oil filling port & ensure it to be air tight. 6) Now run the pump at zero load for some time. 7) Adjust the main pressure relief valve of the system to required value and start using the system.
Note:-- Priming is not required to be done every time you start the pump after short durations (a day or two) of non-operation.
Suction pipe specification
1) 12RC-series : 30 O.D.x 2 mm thick (Preferably straight)
Check valve model codes ( To be ordered separatly)
1) 12RC-series : C20T0-03

Note 1 :
A double pump of model code 12RC5AD, for example, will have 5 pumping elements
of 'A' flow and pressure rating at it's P1 port end section and 5 pumping elements
of 'C' flow and pressure rating at it's P2 port end section.

Note 2 :

For Bell housing assembly Refer Sheet No. p09035.

Double Pump	12RC
With Extension shaft
No. of Pumping elements
Flow and pressure rating
Flow and pressure rating
Combined Delivery
Design Code Subject to change. Installation dimension remain same for design code 10 thru 19	04