42
DEPA
®
Air Operated Diaphragm Pumps
DL 40 - PP - E E E
9.0 Materials and pump coding
* Polypropylene solid
** Polytetrauoroethylene
*** not for DL 15
**** PP-injection molding, only size 15/25/40
Max. pressure range
Alltypesasspecied
DB pumps to 21 bar -
DB pumps to 16 bar B
DB pumps to 13 bar A
Series
Standard series made of
cast metal, plastic and
stainless steel, polished
Cast metal, non metallic
(angeddesign)
Drum pump
Double pump
Powder pump
High pressure pump
Special pump without
own control valve
DL
DH
DF
DZ
DP
DB
DJ/
DH..J
Pump size
Connections G1/2" DN 15 15
Connections G1" DN 25 25
Connections G1 1/2" DN 40 40
Connections G2" DN 50 50
Connections G3" DN 80 80
Interior equipment Diaphragm Seats Balls
NRS B B B***
NBR N N N***
EPDM E E E***
EPDM (grey) G G G***
FKM(Viton
®
) F F -
PTFE(Teon
®
)** T T T
EPDM grey for U - -
series DH (polished
stainless steel pumps)
PTFE ** for P - -
series DH (polished
stainless steel pumps)
nopped E4
®
PTFE
compound Z - -
Stainless steel - R R
Stainless steel DB - H R***
NBR, steel core*** - - Y***
EPDM, steel core*** - - W***
EPDM, grau - - X***
with steel core***
PTFE**, steel core*** - - Z***
NRS,steelcore*** - - V***
Hytrel
®
H - -
DEPA
®
nopped S
4
S - -
noppedE4
®
NRS 5 - -
noppedE4
®
NBR 1 - -
noppedE4
®
EPDM 2 - -
noppedE4
®
EPDM (gray)
3 - -
noppedE4
®
FKM (Viton
®
)
4 - -
Material assembly groups
Housing Diaphragm plate Centre block
Cast aluminium High-grade steel Cast aluminium FA
Nodular cast iron*** Steel Cast aluminium CA
Nodular cast iron*** Steel Cast bronze*** CX
Cast high-grade steel stainless steel Cast aluminium SA
Cast high-grade steel*** Stainless steel Cast aluminium SF
Cast high-grade steel*** Stainless steel Cast bronze SX
Cast high-grade steel Stainless steel Stainless steel SS
High grade steel Polished stainless Cast aluminium
polished 1.4301 steel 1.4301 nickel-plated SL
(AISI/BS 304) (AISI/BS 304)
High grade steel Polished stainless Cast
polished steel aluminium UL/
AISI/BS 316L AISI/BS 316L nickel -plated SU/
(1.4404) (1.4404) UE
PP* PP* PP* PP
PP injection moulded**** PP* PP* PM
PP* electr. conductive PP* electr. PP* electr. PL
conductive conductive
PTFE** PTFE** PP* PT
PTFE** electr. PTFE** electr. PP* electr. TL
conductive conductive conductive