LOT 201.05 RCPs

Question 1

• LOT 201.05 RCPs*
• • *

What is the pressure, flowrate, and flowpath of the #2 Seal?

Answer 1

• Pressure:*
• *30 psig → 10 psig**
• Flowrate:*
• *3 gpm → 3 gph**
• Suction:*
• *Seal #1**
• Discharge:*
• *RCDT**

Question 2

• LOT 201.05 RCPs*
• • *

What is the pressure, flowrate, and flowpath of the #1 Seal?

Answer 2

• Pressure:*
• *2250 psig → 30 psig**
• Min D/P: 220 psid*
• Flowrate:*
• *8 gpm → 3 gpm**
• Suction:*
• *CVCS**
• Discharge:*
• *VCT ****
• CCP Suction*
• *Seal #2**

Inlet temperature ≈ 110 ˚F (Do not exceed 230 ˚F)

≈ 5 gpm goes to pump radial bearing and thermal barrier HX

Note:
On Φ_A CI, Seal return to VCT isolates and relief will lift (150 psig) to send water to PRT.

Question 3

• LOT 201.05 RCPs*
• • *

What provides cooling the RCP thermal barrier?

Answer 3

Seal water

CCW

CCW will isolate on a Φ_B CI signal.

Thermal barrier consists of 21 concentric cans

Question 4

• LOT 201.05 RCPs*
• • *

What is the flowrate and flowpath of the #3 Seal?

Answer 4

• Flowrate:*
• *800 ^cc/_hr → 400 ^cc/_hr (x2)**
• Suction:*
• *Seal Standpipe (RMW)**
• Discharge:*
• *CTMT Normal Sump (400 ^cc/_hr)**
• *RCDT (400 ^cc/_hr)**

Question 5

• LOT 201.05 RCPs*
• • *

What must pressure in the bearing oil lift system be in order to start a RCP?

Answer 5

600 psig

• Blue permissive light on CP005
• Bearing Oil pump must be running to start pump. (Not required for light however)
• Must be operated for ≥ 2 mins by procedure prior to starting RCP.