ATEX Diaphragm Pump HDPE & PTFE

Our TX ATEX Diaphragm Pump is constructed from conductive (carbon filled) plastic, HDPE or PTFE and can be supplied for use within Equipment group IIG (gas), Cat 2 (Zone 1). The conductive material ensures that no electrostatic loads will accumulate within the pump. The conductive pigments in the material reduce the surface resistance to less than 105 W. The pigments cause the black colouring but do not affect the chemical resistance of the thermoplastics that the pump is made from.

The TX ATEX Pump has diaphragms in PTFE (with conductive back) or EPDM (conductive). An earth connection is mounted on the pump, for earthing of electrostatic loads. The TX variant can be supplied across all sizes of Tapflo’s AOD Pumps.

Our TZ ATEX Pump covers ATEX Zone 0. This is available across the full Tapflo ATEX AOD range for use in continuously high-risk environments.

• CAT 1 (zone 0), flammable material present continuously or for long periods
• CAT 2 (zone 1), flammable material present occasionally in normal operation
• CAT 3 (zone 2), flammable material present in abnormal conditions for short periods

• Flows up to 820 l/min
• Pressures up to 160m
• Self-priming
• Solids handling up to 100mm
• Viscosity up to 200 cSt
• Can be supplied with a built-on dampener
• Solid block design, reducing the risk of leakages
• Clean-face, no-nut diaphragms
• ATEX Zones 0, 1 and 2
• Earth connection mounted onto the pump, ensuring the earthing of electrostatic loads
• ATEX-variant can be supplied across all AODD pump sizes

Data	Pump Size
	9	20	50	100	200	400	800
*Max Capacity (l/min)	11	24	60	125	330	570	820
**Volume per Stroke (ml)	15	26	116	305	854	2326	5240
Max Discharge Pressure (Bar)	8	8	8	8	8	8	8
Max Air Pressure (Bar)	8	8	8	8	8	8	8
****Max Suction Lift Dry (m)	1.6	2.4	4	3.5	4	4	5
Max Suction Lift Wet (m)	8	8	9	9	9	9	9
Max Size of Solids (ø in mm)	2	3	4	6	10	15	15
Max Temperature in PE (°C)	70	70	70	70	70	70	70
Max Temperature in PTFE (°C)	100	100	100	100	100	100	–
Weight
Standard Model in PE (kg)	0.75	1.6	4.3	10	25	47	147
Standard Model in PTFE (kg)	1.35	3.15	9	17	47	87	–
Drum Pump Model TD in PE (kg)	–	2.4	4.7	10.5	–	–	–
Drum Pump Model TD in PTFE (kg)	–	3.9	9.4	17.5	–	–	–
Filter Press Model TF in PE (kg)	–	–	8	21.6	30	70	–
Material of Components
Pump Housing & All Wetted Thermoplastic Details	HDPE, HDPE Conductive, PTFE, PTFE Conductive						HDPE, HDPE Conductive
Centre Block (not wetted)	PP, HDPE Conductive, Aluminium
Diaphragms	PTFE, FKM	PTFE, PTFE 1705B, EPDM. NBR, FKM
Valve Balls	–	PTFE, EPDM< NBR, AISI 316L***, PU, Ceramic,***, FKM
Rod Valves (TR9 & TR20)	HDPE, PTFE		–	–	–	–	–
Air Valve	Body: Brass (standard), Stainless Steel AISI 316L or PET O-Rings: NBR (standard), EPDM or FKM
O-Rings (wetted)	PTFE, EPDM, FKM, FEP/FKM
Housing Pin Screws	Stainless Steel
Diaphragm Shaft	Stainless Steel AISI 316L (TR9, TR20, T800)/304L (T50 – T400)
Drum Handle (TD Models)	–	Stainless Steel AISI 316L			–	–	–
Reinforcement Plates (TF Models)	–	–	Stainless Steel AISI 304				–

The TK Series Pulsation Dampeners are designed for seamless integration with all our Plastic and Aluminium Air Operated Diaphragm Pumps.

• Available for all Tapflo plastic AODD Pumps and their ATEX-rated variants
• Available for all Tapflo Aluminium AODD Pumps
• As the dampener block is constructed from solid aluminium, the TK series for Aluminium Diaphragm Pumps is ATEX-rated as standard