Spirax Sarco MFP14, MFP14S and MFP14SS Automatic Pumps
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Description
Spirax Sarco Spirax Sarco MFP14, MFP14S and MFP14SS automatic pumps, powered by steam or compressed air, are used to lift liquids such as condensate to an elevated level and, where appropriate, to drain water from vacuum or pressurized equipment, and, in combination with float-type steam traps, to efficiently remove condensate from temperature-controlled heat exchangers under a wide range of operating conditions.
Available Models
| Valve body material | Available types |
|---|---|
| ductile iron | MFP14 |
| cast steel | MFP14S |
| stainless steels | MFP14SS |
Standards and Certificates
Products comply with the European Pressure Equipment Directive 97/23/EC, ATEX Directive 94/9/EC, EN 10204 3.1 certificates are available, and the design is in accordance with AD-Merkblatter and ASME VIII Dir 1 standards, if certificates are required, specify when ordering.
Sizes and pipe connections
| Available types | Caliber and connection |
|---|---|
| MFP14 | 1", 1½", 2" and 3" x 2" Screwed BSP (BS 21 parallel); DN25, DN40, DN50 and DN80 x DN50 Flanged EN 1092 PN16, ANSI B 16.5 Class 150 and JIS/KS B 2238 10 |
| MFP14S | DN50 flange connection EN 1092 PN16, ANSI B 16.5 Class 150 and JIS/KS B2238 10; 2" threaded connection BSP/NPT available on special request. |
| MFP14SS | DN50 flange connection EN 1092 PN16, ANSI B 16.5 Class 150 and JIS/KS B 2238 10; 2" threaded connection BSP/NPT available on special request. |
| Steam or compressed air inlet | ½" BSP/NPT |
| Exhaust gas outlet | 1" BSP/NPT |
Other Options
- Electronic monitor: ½" BSP threaded connector on top of the pump cover for connection to electronic monitors such as EPM1 (simple 8-digit LCD digital display with built-in 1.5-volt lithium battery), EPM2 (which can be connected to a remote counter or building energy management system BEMS).
- heat preservation coverCustomized for each caliber MFP14 with both safety and energy saving features, refer to TI-P136-07 for more details.
material (that sth is made of)
| Item | Part | material (that sth is made of) | MFP14 | material (that sth is made of) | MFP14S | material (that sth is made of) | MFP14SS |
|---|---|---|---|---|---|---|---|
| 1 | pump cover | ductile iron | en js 1025, en-gjs-400-18-lt | cast steel | DIN GSC 25N, ASTM A216 WCB | stainless steels | bs en 10213-4, 144091, astm a351 cf3m |
| 2 | Pump cover gasket | - | - | - | - | - | - |
| 3 | Pump cover bolts | stainless steels | ISO 3506 Gr. A2-70 | stainless steels | ISO 3506 Gr. A2-70 | stainless steels | ISO 3506 Gr. A2-70 |
| 4 | pump body | ductile iron | EN-GJS-400-18-LT | cast steel | DIN GSC 25N, ASTM A216 WCB | stainless steels | bs en 10213-4, 144091, astm a351 cf3m |
| 5 | mainstay | stainless steels | BS 970, 431 S29 | stainless steels | BS 970, 431 S29 | stainless steels | BS 970, 431 S29 |
| 6 | Connecting Rods Floats and Rods | stainless steels | BS 1449, 304 S11 | stainless steels | BS 1449, 304 S11 | stainless steels | BS 1449, 304 S11 |
| 7 | float | stainless steels | AISI 304 | stainless steels | AISI 304 | stainless steels | AISI 304 |
| 8 | Lifting ring (one-piece) | ductile iron | EN-GJS-400-18-LT | cast steel | DIN GSC 25N, ASTM A216 WCB | stainless steels | bs en 10213-4, 144091, astm a351 cf3m |
| 9 | Mechanical connecting rod | stainless steels | BS 3146 pt.2 ANC 2 | stainless steels | BS 3146 pt.2 ANC 2 | stainless steels | BS 3146 pt.2 ANC 2 |
| 10 | sprung | Inconel 718 | astm 5962/astm b367 | Inconel 718 | astm 5962/astm b367 | Inconel 718 | astm 5962/astm b367 |
| 11 | plug | steel (chemistry) | DIN 267 Part III Class 5.8 | steel (chemistry) | DIN 267 Part III Class 5.8 | steel (chemistry) | DIN 267 Part III Class 5.8 |
| 12 | Check Valves | stainless steels | - | stainless steels | - | stainless steels | - |
| 13 | Female flange | steel (chemistry) | - | steel (chemistry) | - | steel (chemistry) | - |
| 14 | Organizational Brackets | stainless steels | BS 3146 pt. 2 ANC 4B | stainless steels | BS 3146 pt. 2 ANC 4B | stainless steels | BS 3146 pt. 2 ANC 4B |
| 15 | Bracket bolts | stainless steels | BS 6105 Gr. A2-70 | stainless steels | BS 6105 Gr. A2-70 | stainless steels | BS 6105 Gr. A2-70 |
| 16 | Inlet valve seat | stainless steels | BS 970, 431 S29 | stainless steels | BS 970, 431 S29 | stainless steels | BS 970, 431 S29 |
| 17 | inlet valve | stainless steels | ASTM A276 440B | stainless steels | ASTM A276 440B | stainless steels | ASTM A276 440B |
| 18 | Intake Valve Seat Gasket | stainless steels | BS 1449 409 S19 | stainless steels | BS 1449 409 S19 | stainless steels | BS 1449 409 S19 |
| 19 | Exhaust valve seat | stainless steels | BS 970 431 S29 | stainless steels | BS 970 431 S29 | stainless steels | BS 970 431 S29 |
| 20 | venting valve | stainless steels | BS 3146 pt. 2 ANC 2 | stainless steels | BS 3146 pt. 2 ANC 2 | stainless steels | BS 3146 pt. 2 ANC 2 |
| 21 | Exhaust Valve Seat Gasket | stainless steels | BS 1449 409 S19 | stainless steels | BS 1449 409 S19 | stainless steels | BS 1449 409 S19 |
| 22 | EPM Motivator | Alnico | - | Alnico | - | Alnico | - |
| 23 | 'O' Ring Seal | EPDM | - | EPDM | - | EPDM | - |
| 28 | spring-loaded retainer | stainless steels | BS 970 431 S29 | stainless steels | BS 970 431 S29 | stainless steels | BS 970 431 S29 |
Pressure/Temperature Limits
| Valve body design conditions | MFP14 | MFP14S | MFP14SS |
|---|---|---|---|
| Maximum power gas inlet pressure (steam or other gases) | 13.8 bar g | 13.8 bar g | 10.96 bar g |
| PMA Maximum Allowable Pressure | 16 bar g@120°C | 16 bar g@120°C | 16 bar g@93°C |
| TMA Maximum Allowable Temperature | 300° C@12.8 bar g | 300° C@10.8 bar g | 300° C@9.3 bar g |
| Minimum permissible temperature (consult Spirax Sarco for low temperature applications) | 0°C | 0°C | 0°C |
| PMO Maximum Working Pressure | 13.8 bar g@198°C | 13.8 bar g@198°C | 10.96 bar g@188°C |
| TMO Maximum Operating Temperature | 198° C@13.8 bar g | 198° C@13.8 bar g | 188° C@10.96 bar g |
| Minimum operating temperature (consult Spirax Sarco for low temperature applications) | 0°C | 0°C | 0°C |
| Recommended inlet height (based on pump cover) | 0.3m | 0.3m | 0.3m |
| Minimum inlet height (based on pump cover) | 0.15m (reduced displacement for DN40 and DN25) | 0.15m (reduced displacement for DN40 and DN25) | 0.15m (reduced displacement for DN40 and DN25) |
| Specific gravity of standard pumped liquids | - | - | - |
| Single cycle pump discharge (DN80 x 50) | 19.3 liters | 19.3 liters | 19.3 liters |
| Single circulation pump displacement (DN50) | 12.8 liters | 12.8 liters | 12.8 liters |
| Single cycle pump displacement (DN40) | 7 liters | 7 liters | 7 liters |
| Steam consumption | Up to 20 kg/h | Up to 20 kg/h | Up to 16 kg/h |
| Air consumption (standard) | Up to 5.6 dm³/s | Up to 5.6 dm³/s | Up to 4.4 dm³/s |
| Temperature limitation (ambient temperature) | -10°C to 200°C | -10°C to 200°C | -10°C to 200°C |
The total head or back pressure (static head plus pressure in the recovery system) must be lower than the power fluid inlet pressure, total head calculation: height H (m) X 0.0981 + pressure in the recovery pipe (bar g) + fluid friction resistance in the downstream piping (bar), when calculating fluid friction resistance in the downstream piping, fluid flow rate to take the actual condensate flow rate of six times or 30,000L / h in the smaller value.
weights
| caliber | Pump weight (kg) | Weight (including check valve and flange weight) (kg) |
|---|---|---|
| DN25 | 51 | 58 |
| DN40 | 54 | 63 |
| DN50 | 72 | 82 |
| DN80 x DN50 | 88 | 98 |
How to choose a model
According to the power medium pressure, system back pressure, inlet height and the required displacement to select the appropriate caliber of the condensate recovery pump. First calculate the condensate recovery pump work to overcome the total effective head, and then through the displacement diagram to determine the caliber of the pump, if the water intake height is not 0.3m, the need to amend the flow rate with the corresponding water intake height correction coefficient; if the power medium is not steam, but also need to amend the corresponding correction coefficient correction of the displacement.
Security information, installation and maintenance
See the Installation and Maintenance Guide (IM-P136-03) supplied with the product for details. During installation, flash vapor needs to be evacuated or condensed before entering the condensate pump for optimum pump operation.
Ordering Instructions
Example: 1 - Spirax Sarco DN50 MFP14 condensate recovery automatic pump with flange connection EN 1092 PN16 and power medium inlet with threaded connection BSP. check valve and flange to be ordered separately.
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