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Table of Contents
Related Manuals for Spirax Sarco K Series
Summary of Contents for Spirax Sarco K Series
- Page 1 IM-S24-15 3010052/4 CH Issue 4 K and L Series Two-port Control Valves Installation and Maintenance Instructions 1. Safety information 2. General product information 3. Installation and commissioning 4. Maintenance 5. Spare parts IM-S24-15 CH Issue 4 © Copyright 2005 Printed in the UK...
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Page 2: Intended Use
Group 1 of the above mentioned Pressure Equipment Directive. The products’ use on other fluids may be possible but, if this is contemplated, Spirax Sarco should be contacted to confirm the suitability of the product for the application being considered. - Page 3 KE valves Group 1 Group 2 Group 1 Group 2 Product Gases Gases Liquids Liquids DN15 - DN25 DN32 KE43 PN40 DN40 - DN50 DN65 - DN100 DN15 - DN25 DN32 KE43B1 PN40 DN40 - DN50 DN65 - DN100 DN15 - DN25 DN32 KE43B4 PN40...
- Page 4 KEA valves Group 1 Group 2 Group 1 Group 2 Product Gases Gases Liquids Liquids DN15 - DN25 DN32 KEA41 ANSI 300 DN40 DN50 DN15 - DN25 DN40 - DN50 ANSI 150 DN65 - DN100 DN150 DN200 KEA43 DN15 - DN25 DN40 ANSI 300 DN50 - DN100...
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Page 5: Pressure Systems
LE valves Group 1 Group 2 Group 1 Group 2 Product Gases Gases Liquids Liquids LE31 PN16 DN15 - DN50 LE31B1 PN16 DN15 - DN50 DN15 - DN50 LE33 PN16 DN65 - DN100 DN15 - DN50 LE33B1 PN16 DN65 - DN100 LEA valves Group 1 Group 2... - Page 6 1.9 Tools and consumables Before starting work ensure that you have suitable tools and / or consumables available. Use only genuine Spirax Sarco replacement parts. 1.10 Protective clothing Consider whether you and /or others in the vicinity require any protective clothing to protect against the hazards of, for example, chemicals, high / low temperature, radiation, noise, falling objects, and dangers to eyes and face.
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Page 7: Returning Products
C u s t o m e r s a n d s t o c k i s t s a r e r e m i n d e d t h a t u n d e r E C H e a l t h , S a f e t y a n d Environment Law, when returning products to Spirax Sarco they must provide... -
Page 8: General Product Information
2. General product information The K and L series control valve range consists of; two-port single seat globe valves with cage-retained seats conforming to either EN 1092 or ANSI/ASTM specification. These valves are available in three body materials: SG iron, cast steel or stainless steel (with the exception of the L series, which is available in cast iron only) in sizes DN15 to DN100 (½"... - Page 9 ��� ��� ��� ��� KE43, KE43B1 ��� and KE43B4 Steam (cast steel) ��� saturation curve � ��� � �� �� �� �� �� Pressure bar g ��� ��� ��� ��� KE61 and KE63 (stainless steel) Steam ��� saturation curve � ���...
- Page 10 2.2 Pressure / temperature limits - ANSI KEA and LEA valves KEA41 and KEA43 ANSI 150 or ANSI 300 KEA61 and KEA63 ANSI 150 or ANSI 300 Body design conditions KEA71 and KEA73 ANSI 125 or ANSI 250 LEA31 and LEA33 ANSI 125 KEA41 and KEA43 740 psi g @ 100°F...
- Page 11 ��� ��� KEA41 and KEA43 ��� ��� (cast steel) Steam ��� saturation curve �� � ��� ��� ��� ��� ��� ��� ��� Pressure psi g ��� ��� ��� KEA61 and KEA63 ��� (stainless steel) ��� Steam saturation curve � ��� �...
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Page 12: Installation And Commissioning
3. Installation and commissioning Note: Before actioning any installation, observe the ‘Safety information’ in Section 1. Referring to the Installation and Maintenance Instructions, name-plate and Technical Information Sheet, check that the product is suitable for the intended installation: Check materials, pressure and temperature and their maximum values. Do not exceed the performance rating of the valve. -
Page 13: Periodic Maintenance
4. Maintenance KEA61 and KEA63 Warning The 316 type stainless steel used in the construction of this product particularly for screwed or close fitting parts, is very susceptible to galling or cold welding. This is an inherent characterisitic of this type of material and great care should therefore be taken when dismantling or reassembling. - Page 14 Isolate the valve on both sides. Remove the actuator from the valve. Refer to the Installation and Maintenance Instructions covering Spirax Sarco actuators. Caution: Care should be taken in removing the bonnet since fluid under pressure may be trapped between the isolating valves.
- Page 15 Isolate the valve on both sides. Remove the actuator from the valve. Refer to the Installation and Maintenance Instructions covering Spirax Sarco actuators. Caution: Care should be taken in removing the bonnet since fluid under pressure may be trapped between the isolating valves.
- Page 16 Refit the valve plug /stem assembly by carefully sliding the valve stem in order to pass through the seals. Using a new bonnet gasket refit the bonnet (2) onto the valve body, ensuring the plug is on the valve seat, and replace the nuts and tighten to the recommended torque (see Table 1, page 13), ensuring that the valve plug is centrally located in the seat whilst tightening.
- Page 17 Isolate the valve on both sides. Remove the actuator from the valve. Refer to the Installation and Maintenance Instructions covering Spirax Sarco actuators. Caution: Care should be taken in removing the bonnet since fluid under pressure may be trapped between the isolating valves.
- Page 18 4.5 Replacing a PTFE soft seal (DN150 and DN200 valves) When replacing a soft seal plug / assembly, proceed as follows: Taking care not to damage the stem, post or head remove the 6 bolts which attach the retaining cover (A) to the valve head (B) and remove the old PTFE seal. Clean all mating surfaces and fit the new PTFE seal (C).
- Page 19 Remove the actuator from the valve. Note: take care not to rotate the valve stem when removing the actuator from the valve, since this will destroy the bellows. Refer to the Installation and Maintenance Instructions covering Spirax Sarco actuators. Caution: Care should be taken in removing the stem seal if the bellows has failed, since fluid under pressure may be trapped between the isolating valves.
- Page 20 Note: To remove and replace seat (4) a special tool is required which can be obtained from Spirax Sarco by quoting the valve size and type. Replace seat gasket (16) and insert the new seat (4) into the body. Tighten to the recommended torque (see Table 2, below).
- Page 21 Note: take care not to rotate the valve stem when fitting the actuator to the valve since this will destroy the bellows. Refer to the Installation and Maintenance Instructions covering Spirax Sarco actuators. Bring the valve back into service. Check for leakage around all gasket joints.
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Page 22: Spare Parts
Always order spares by using the description given in the column headed 'Available spares' and state the size and type of valve including the date code. Example: 1 - PTFE gland seal kit for a Spirax Sarco DN25 KE73 two-port control valve. Date coded C04. - Page 23 DN15 - DN50 DN65 - DN100 Valve sizes DN15 - 50 DN65 - 100 (soft seal) (soft seal) DN40 - 100 Valve size DN15 - 32 including (KE71, 73, 43) DN15 - 32 KE61, 63 Date code location Fig. 8 KE43, KE61, KE63, KE71 and KE73 - DN15 to DN100 IM-S24-15 CH Issue 4...
- Page 24 Example: 1 - Seat, seat gasket and bonnet gasket for a Spirax Sarco 6" KEA73 two-port control valve Cv 280 having flanged ANSI 250 connections. Date coded C04.
- Page 25 6" and 8" 6" and 8" standard plug soft seal plug (2" travel only) Date code location Fig. 9 KEA series 6" and 8" (DN150 and DN200) IM-S24-15 CH Issue 4...
- Page 26 Always order spares by using the description given in the column headed 'Available spares' and state the size and type of valve including the date code. Example: 1 - PTFE gland seal kit for a Spirax Sarco 1" LEA33 two-port control valve. Date coded C04.
- Page 27 (DN15 to DN50) (DN65 to DN100) DN15 to DN40 and ½" to 1½" screwed Valve sizes DN40 to DN100 DN15 to DN65 Valve sizes (½" to 2½") DN15 to DN32 screwed and flanged DN65 to DN100 and 1½" screwed DN80 to DN100 (3"...
- Page 28 Always order spares by using the description given in the column headed 'Available spares' and state the size and type of valve including the date code. Example: 1 - Seat and seat gasket kit for a Spirax Sarco DN25 KE73B1 bellow sealed two-port control valve. Date coded C04.
- Page 29 B, B1 and C (Shown in detail above) DN15 to DN32 and ½" to 1¼" screwed DN40 to DN100 and 1½" to 2" screwed DN15 to DN32 DN40 to DN100 Fig. 11 Bellows sealed KE series - DN15 to DN200 (½" to 8") IM-S24-15 CH Issue 4...
- Page 30 Always order spares by using the description given in the column headed 'Available spares' and state the size and type of valve including the date code. Example: 1 - Seat, seat gasket and bonnet gasket for a Spirax Sarco DN25 LE33B1 K vs 10 flanged to PN16. Date coded C04.
- Page 31 (Shown in detail above) DN15 to DN40 and ½" to 1½" screwed DN65 to DN100 and 1½" screwed DN15 to DN32 DN40 to DN100 Fig. 12 LE31B1 and LE33B1 - DN15 to DN100 IM-S24-15 CH Issue 4...
- Page 32 IM-S24-15 CH Issue 4...
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