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Type BCD-A, BCD-B
(ANSI)

Features

Operating range

- Dual seal
- Cartridge  
- Balanced
- Independent of direction of rotation
- Double pressure balanced 
- Available for standard (BCD-A) and big bore (BCD-A) seal chambers
- Ideal for use in ANSI process pumps
- Universal applicable for packings conversions, retrofits or OEM
- No damage of the shaft by dynamically loaded O-Ring
- Extended service life
- Installation faults are avoided, cost-effective
- No damage caused by dirt entered during assembly

Shaft diameter: d1 = 1.000" ... 3.750"
Other sizes on request
Temperature: t = –40 °C ... +220 °C (–40 °F ... +428 °F)
(Check O-Ring resistance)


Sliding face material combination CB VS SSIC 
Pressure: p1 = 25 bar (363 PSI)
Sliding velocity: vg = 16 m/s (52 ft/s)


Sliding face material combination SSIC VS SSIC or TC VS SSIC
Pressure: p1 = 20 bar (290 PSI)
Sliding velocity: vg = 10 m/s (33 ft/s)


Barrier fluid circulation system:
P3max = 25 bar (363 PSI)
P3max = 7 bar (102 PSI) for poor barrier media


Recommended supply medium: Max. ISO VG 5
Axial movement: ±1.0 mm, d1 ≥ 75 mm ±1.5 mm
 

Materials

Rotary Seal Face: SSIC
Stationary Seal Face: SSIC, Carbon graphite resin, Tungsten carbide 
Secondary seals: FKM, EPDM, FFKM, FEPM
Springs: SUS316, Hastelloy® C-4
Metal parts: SUS316

Item                                   Item Description

1, 3, 6, 7, 11, 14, 15, 19      O-Ring                         
2                                          Sleeve                         
4                                          Rotary Seal Face In        
5                                          Stationary Seal Face In   
8                                          Stationary Housing Out  
9                                          Stationary Seal Face Out
10                                        Rotary Seal Face Out     
12                                        Rotary Housing Out       
13, 14                                  Spring                        
15                                        Gasket                       
16                                        Gland                        
17                                        Gasket for Plug            
18                                        Screw Plug                  
20                                        Set-Ring                      
21                                        Lock Washer               
22                                        Set Screw                   
23                                        Screw                        
24                                        Setter

BCD-A, BCD-B-2.png
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