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WS Exacta Series

WS Exacta Series

Product catalog summary

Overview: The WS Exacta Series features hydraulic sandwich diaphragm pumps with a spring return mechanism, emphasizing simplicity, reliability, and easy installation. The series introduces a double diaphragm sandwich with a spring return operating mechanism.

Specifications:

Stroke adjustment from 0 to 100% with an adjustment locking device.
Electric motors comply with European Standards, offering multi-voltage and multi-frequency options (230-400V/3 50-60Hz, IP55, insulation class F).
Working temperature ranges from -20 to +80 °C for stainless steel pump heads and -10 to +50 °C for plastic pump heads.
Options include single-phase, flameproof, or special types.

Hydraulic Sandwich Diaphragm Pump Head:

Combines volumetric pump advantages with the sealless nature of diaphragms.
Double barrier between pumped and hydraulic fluids.
Hydraulic fluid compatibility with the pumped medium.

Diaphragm Early Failure Detector (EFD): Detects over-pressure if one diaphragm leaks, with visual or remote pressure switch detection.

Flow Rate Adjustment:

Manual adjustment with grip handle and graded vernier.
Electric servomotor with a 4-20mA signal and manual emergency adjuster.
Inverter for motor speed regulation.
Pneumatic servomotor for classified areas.

Accessories:

Pressure safety valves to prevent overpressure damage.
Back pressure valves to ensure correct pump operation.
Pulsation dampers to reduce pressure fluctuations.
Calibration pots for flow rate measurement.

WS1 Series:

Aluminium gearbox, compact and rugged.
Flow rate from 0.7 to 111 lt/h, max pressure 60 barg.
Stainless steel and plastic pump heads with PTFE diaphragm.
Standard connections as BBPF, with optional flanged connections.

WS2 Series:

Flow rate from 1.5 to 500 lt/h, max pressure 80 barg.
Similar features to WS1 with additional options for higher flow rates and pressures.

Technical Features:

Flow rates, pressure max, stroke rate, piston diameter, motor powers, and stroke length are specified for both WS1 and WS2 series.
Materials in contact with the liquid include SS 316L, PTFE, ceramic, PVC, PVDF, and Alloy 20.

Conclusion: The WS Exacta Series offers advanced hydraulic diaphragm pumps suitable for various dosing needs, with robust safety features and adaptable configurations for different industrial applications.

Catalog excerpts

innovation > technology > future Standards WSExacta Series Hydraulic sandwich diaphgram pumps with spring return mechanism WS Exacta Series Hydraulic sandwich diaphgram pumps with spring return mechanism

Open the catalog to page 1

Simplicity,reliabilty and easy instakllation are the most evident feature of this line. The new WS serie lies the technical innovation of a double diaphragm sandwich with a spring return operating mechanism. • Stroke adjustment from 0 to 100% running or at rest. Adjustment locking device • Electric motors in accordance with European Standards, multi-voltage and multi-frequency, 230-400V/3 50-60Hz, IP55, insulation class F with overtemperature B • Working temperature -20 +80 °C for stainless steel pump head -10 +50 °C for plastic pump head Options: single-phase, flameproof or special type Hydraulic...

Open the catalog to page 2

The flow rate of the pump can be adjusted by: Manually with grip handle and graded vernier Electric servomotor with a 4- 20mA signal and manual emergency adjuster Inverter, by regulating the speed of the motor, keeping the manual adjustment on the stroke length Pneumatic servomotor, especially for classified areas Accessories Pressure safety valves are installed to prevent dangerous situations in case of unexpected overpressure that can damage the pump and the pipes. Metering pumps can reach higt pressure in one stroke, therefore they shoud be protected by possible clogging of the pipe caused,...

Open the catalog to page 3

S1 Mechanism Type W Pump Type Model number (Key to symbols) F Stroke Length (F= 10 mm) 047 Piston Diameter A Strokes/Minutes (A= 58 • B=78 • C=116) 21 Pump Head Materials (see table) A4 Motor Power 000 Optional Pump head Process Diaphgram Valves Valve Seats Pump Head Materials 21 55 35 45 61 Piston Ø [mm] Connec. [BSP] SS 316L Dimension [mm] A B C D E F m a° 1/4” M 104 6 (DV) 104 245 Height depends on motor type Ø89 96 30° 1/4” M 101,5 12 (DV) 101,5 227 Ø89 96 30° 1/4” M 109 20 (DV) 109 228 Ø99 97 30° 1/4” M 83,5 28 (SV) 83,5 238,5 Ø99 92 30° 1/4” F 100 47 (SV) 105 266 Ø129 111,5 39° Liquid End...

Open the catalog to page 5

Piston Ø [mm] 6 8 12 15 25 35 51 70 86 Connec. [BSP] SS 316L Dimension [mm] A B C D E F m a° 1/4” M 108 (DV) 109 309,5 Height depends on motor type Ø99 100 20° 1/4” M 108 (DV) 109 309,5 Ø99 100 20° 1/4” M 109 (DV) 110 309,5 Ø99 101 20° 1/4” M 120 (DV) 119 310 Ø119 111 20° 1/4” F 133 (SV) 138 323,5 Ø128 115 23° 1/2” F 116 (SV) 121 332 Ø128 115 23° 1/2” F 125 (SV) 130 338 Ø149 125 40° 3/4” F 144 (SV) 149 346,5 Ø175 138,5 32° 1” F 183 (SV) 189 405 Ø220 161 30° Piston Ø [mm] 6 8 12 15 25 35 51 70 86 Connec. [BSP] PP Dimension [mm] A B C D E F m a° 3/8” M 108 (DV) 109 309,5 Height depends on motor...

Open the catalog to page 7

BRO WSPUK 081 The technical data may be modified without notice. The drawings and images are only indicative www.seko.com SEKO Asia Pacific SINGAPORE • SEKO China CHINA • SEKO do Brasil BRAZIL • SEKO Dosing Systems USA • SEKO Deutschland GERMANY • SEKO France FRANCE • SEKO Iberica SPAIN SEKO Italia ITALY • OOO SEKO RUSSIA • SEKO Northern Europe DENMARK • SEKO SIETA ROMANIA • SEKO Southern Africa SOUTH AFRICA • SEKO UK UNITED KINGDOM

Open the catalog to page 8

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