Pipeline ancillaries Ball valves
10
Local regulations may restrict the use of this product to below the conditions quoted. In the interests of development and improvement of the product, we reserve the right to change the specification without notice. © Copyright 2018
TI-P133-81 CMGT Issue 5
M21Fi ISO Reduced Bore Firesafe API607 Ball Valve DN15 to DN150 Flanged PN40
Description The M21Fi is a reduced bore ball valve, with a single piece body, having ISO mounting as standard. It is designed to be an isolating valve, which can be used with the majority of industrial fluids, not a control valve. Firesafe design In normal working conditions, the ball rests against two PDR 0.8 seats ensuring total closure. When the valve is submitted to temperature above the limits the seats can withstand, the seat becomes deformed and renders to extrusion. When the seats have been totally destroyed, the ball will come to rest firmly against the metal seat in the cap, producing a metal-to-metal closing. This secondary seat in the valve cap ensures the valve will operate to international API 607 standard. Available types M21Fi2 ISO Zinc plated carbon steel body, PDR 0.8 seats. M21Fi3 ISO Stainless steel body, PDR 0.8 seats. Standards This product fully complies with the requirements of the Pressure Equipment Directive (PED) and carries the mark when so required. Certification This product is available with certification to EN 10204 3.1. Note: All certification/inspection requirements must be stated at the time of order placement.
DN15 to DN50
DN65
7.3.172
Pressure/temperature limits
-29 0 50 100 150 200 260
Steam saturation curve
10.3 171
5 10152025303540 Pressure bar g
0
Sizes and pipe connections DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100 and DN150 Standard flange: EN 1092 PN40 Face-to-face dimensions:
The product must not be used in this region.
Body design conditions
PN40
PMA Maximum allowable pressure 40 bar g @ 120 °C TMA Maximum allowable temperature 260 °C @ 0 bar g Minimum allowable temperature -29 °C PMO Maximum operating pressure for saturated steam service 17.5 bar g TMO Maximum operating temperature 260 °C @ 0 bar g Minimum operating temperature -29 °C Note: For lower operating temperatures consult Spirax Sarco PMX Maximum differential pressure is limited to the PMO Designed for a maximum cold hydraulic test pressure of 60 bar g
- DN15 to DN100 according to DIN 3202 F4. - DN25 to DN150 according to BS 2080. Technical data Flow characteristic
Modified linear
Port Reduced bore Leakage test procedure to ISO 5208 (Rate A)/EN 12266-1 (Rate A) Antistatic device Complies with ISO 7121 and BS 5351
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