BOA -R
Type series booklet
7117.1/13-10
®
Maintenance-free
metallic-seat
flanged
non-return valves
DN 15-350
PN 6, 16
Application
•
Warm-water heating systems
•
Hot-water heating systems
•
Heat-transfer installation
•
Pressure vessel equipment to TRB 801 nr. 45
1)
•
Boiler installations to TRD 108/110
1)
•
Other fluids on request
1
) Please contact KSB for limitations imposed by the applicable
technical codes.
Operating data
•
Temperature range:
--10 up to +300
°
C for EN-GJL-250 *)
--10 up to +350
°
C for EN-GJS-400-18-LT *)
--30
°
C for EN-GJS-400-18-LT **) with bolts for low-tempera-
ture service
•
Pressure range:
Straight way pattern up to
∆
p = 6 or 16 bar
Angle pattern up to
∆
p = 16 bar
Materials
Body:
•
Straight-way pattern:
Cast iron with flake graphite EN-GJL-250
Cast iron with nodular graphite EN-GJS-400-18-LT
•
Angle pattern:
Cast iron with flake graphite EN-GJL-250
•
For further details, see table of materials
Standard design
•
Straight-way or angle pattern with horizontal seat
•
With spring-loaded check cone
•
Free from asbestos, CFC, PCB
•
Exterior finish: blue similar to RAL 5002
Variants
•
Oil and grease-free design
•
Other flange design
Additional information
•
Operating instructions: 0570.8
•
Type-tested to the specifications of Germanischer Lloyd
On all enquiries/orders please specify
Non-return valve
1. BOA
R
-R according to type series booklet 7117.1
2. PN 6 or 16
3. EN-GJL-250, JL 1040 or EN-GJS-400-18-LT, JS 1025
4. Straight-way and angle pattern
(angle pattern only EN-GJL-250)
5. DN 15-350 (DN 350 only in EN-GJS-400-18-LT)
6. Variant
*) For operating temperatures > 200
°
C and uninsulated
valves please use the valve variant with high--temperature
resistant paint.
The valves meet the safety requirements of the Pressure
Equipment Directive 97/23/EC (PED) of annex I for fluids of
the groups 1 and 2.
The valves do not have a potential internal source of ignition
and can be used in potentially explosive atmospheres,
group II, category 2 (zones 1+21) and category 3 (zones
2+22) according to ATEX 94/9/EC.
PED 97/23/EC
