C
s
- V
- S
- S
- S
- S
P
- C
  - C
  - C
- S
- C
- C
- A
- V
- v
- V
- V
- A
N
- N
- N
C
- G
- S
C

XFNT-3

I
P

C

IV, V, V,V<

p

XF60200D Brass radiator valve — V
P

Heating valve XF60258A — V

Brass radiator valve — V

XF60613G Brass radiator valve — V

XF60660 — V

Heating valve XF60611 A — V

XF60619A Brass radiator valve — V

REFRACTION

I

C
C
v
C
R
v
V
V
V
C
P
V

B
V
R

S

<
M

<
A

<
P

I
R

<
M

<

C

M2
G
A2
Q
T2
L
J1
S
P2
<
D2
I

r

C
V
V
C
C
V
V
C
V
V
V

s

S
S
S
S
V

P

C
S
C
C
A
V
v
V
V

I

N
N

C

Z
0
C
i

©

P