Post on 09-Mar-2018
Thief Hatch Brochure
Clay & Bailey ManufaCturing CoMpany
6401 east 40th StreetKansas City, Mo 64129
Phone: 1-800-821-6583 • 1-816-924-3900fax: 1-816-924-3903
e-Mail: candbmfg@claybailey.com www.claybailey.com6/14
6401 E. 40th St. Kansas City, Missouri 64129 6-14
1-816-924-3900 1-800-821-6583 FAX: 1-816-924-3903www.claybailey.com email: candbmfg@claybailey.com
OILFIELD Thief haTches
50
Features Combination pressure and vacuum relief valve designed for tanks requiring large SCFH vent-ing. Standard gasket material is neoprene with other gasket materials available. Durable cast iron cover and base with machined brass vacuum valve. Base conforms to API requirements.Bolt Pattern:(16) - 1/2” dia holes on a 10 3/8” B.C.
Part No. Size Press Vac Wt.lbs 0050-01-0800 8” 2oz 0.5oz 18.0
50D
Features Same as #50 above, only with deep base, overall height is 14”.Bolt Pattern:(16) - 1/2” dia holes on a 10 3/8” B.C.
Part No. Size Press Vac Wt.lbs 0050-01-0810 8” 2oz 0.5oz 20.0
50 & 50D Repair Parts ListingPart Number Description Material0050-01-0800 2oz Press / 0.5oz Vac. Cover Assembly Cast Iron, Brass0050-01-0811 Base Mild Steel0050-01-0801 Base Cast Iron0050-03-0801 Base Aluminum0054-01-0805 2oz Press / 0.4oz Vac Cover Assembly Aluminum0054-01-0835 4oz Press / 0.4oz Vac Cover Assembly Cast Iron 0054-05-1200 Cover Gasket Neoprene0054-05-1201 Cover Gasket EPDM0054-05-1202 Cover Gasket Viton0054-05-1203 Cover Gasket ECH0054-05-0822 Base Gasket CIR0054-09-1814 Hinge Pin Cold Rolled SteelSee #52 repair parts for other listings.
Maintenance Note: Check gaskets periodically for cracking or UV damage, replace if necesssary. Inspect internal valve for blockage or debris.
Airflow Rating: 50 & 50D Pressure: 50 & 50D Vacuum: 498,289 SCFH @ 2.5psig 13,192 SCFH @2”H2O (-1oz)
6401 E. 40th St. Kansas City, Missouri 641296-14
1-816-924-3900 1-800-821-6583 FAX: 1-816-924-3903www.claybailey.com email: candbmfg@claybailey.com
OILFIELDThief haTches
Features Durable relief valve designed for storage vessels requiring pressure and vacuum venting. An 8” dead weight cover opens completely, to allow for high venting capacity. Standard settings are 2 oz pressure and 0.4 oz vacuum, with other settings available. The #54 can be ordered with bolting or welding base. Flange hole pattern complies with API bolt circle dimensions. Standard gasket is neoprene, other gasket materials available.Bolt Pattern: (16) - 1/2” dia holes on a 10 3/8” B.C.
Part No. Size Press Vac Wt.lbs 0054-01-0800 8” 2oz 0.4oz 17.00054-01-0830 8” 4oz 0.4oz 19.00054-01-0840* 8” 2oz 0.4oz 12.00054-01-0850* 8” 4oz 0.4oz 13.0*Provided with weld on collar
Repair Parts Listing54Part Number Description Material0050-01-0801 Base Cast Iron0050-03-0801 Base Aluminum0054-01-0805 2oz Press / 0.4oz Vac Cover Assembly Aluminum0054-01-0835 4oz Press / 0.4oz Vac Cover Assembly Cast Iron 0054-05-1200 Cover Gasket Neoprene0054-05-1201 Cover Gasket EPDM0054-05-1202 Cover Gasket Viton0054-05-1203 Cover Gasket ECH0054-05-0822 Base Gasket CIR0054-09-1814 Hinge Pin Cold Rolled SteelSee #52 repair parts for other listings.
Maintenance Note:54 - Check gaskets periodically for cracking or UV damage, replace if necesssary. Inspect internal valve for block-age or debris.55 - Check gasket periodically for cracking or UV damage, replace if necesssary.
Airflow Rating:54 Pressure: 55 Pressure: 54 Vacuum:506,723 SCFH @ 2.5psig 575,396 SCFH @ 2.5psig 12,721 SCFH @ 2”H2O (-1oz)
55
Features Dead weight, pressure relief valve suitable for storage tanks requiring pressure relief only. Standard gasket material is neoprene with other materials available. Uses the same base as the #54.Hole Pattern: (16) - 1/2” dia holes on a 10 3/8” B.C.
Part No. Size Press Vac Wt.lbs 0055-01-0800 8” 2oz 0.5oz 18.00055-01-0810* 8” 2oz 0.5oz 18.0
*Provided with weld on collar
54
6401 E. 40th St. Kansas City, Missouri 64129 6-14
1-816-924-3900 1-800-821-6583 FAX: 1-816-924-3903www.claybailey.com email: candbmfg@claybailey.com
OILFIELD
56
Features Long Pan, dual combination thief hatch. Ideal for oilfield tanks as base contains spills after sampling. Unit is lockable, with a spring loaded aluminum cover and cast iron base. Standard gasket material is Buna-N with other gasket material available. Settings of 4oz pres-sure and 0.4oz vacuum are standard. Flange bolt pattern conforms to API pattern.Bolt Pattern:(16) - 1/2” dia holes on a 10 3/8” B.C.
Part No. Size Press Vac Wt.lbs 0056-01-0800 8” 4oz 0.4oz 380056-01-0810 8” 8oz 0.4oz 380056-01-0820 8” 12oz 0.4oz 380056-01-0830 8” 16oz 0.4oz 38
Thief haTches
Repair Parts ListingPart Number Description Material
0056-01-0803 4 oz Press / 0.4oz Vac Internal Valve Assy Aluminum0056-01-0805 4 oz Press / 0.4oz Vac Cover Assembly Aluminum0056-03-0806 Handle & Latch Assembly Aluminum0056-05-3000 Pressure Gasket EPDM0056-05-3001 Vacuum Gasket EPDM0056-05-3002 Pressure Gasket VITON*0056-05-3003 Vacuum Gasket VITON*0056-05-3004 Pressure Gasket ECH0056-05-3005 Vacuum Gasket ECH0056-05-3006 Pressure Gasket Buna-N0056-05-3007 Vacuum Gasket Buna-N0056-05-3050 Envelope Pressure Gasket Buna-N0056-09-1808 Hinge Pin Mild Steel
Maintenance Note:Check gaskets periodically for cracking or UV damage, replace if necesssary. Inspect internal valve for blockage or debris.
Airflow Rating:56 Pressure:549,117 SCFH @ 2.5psig
56 Vacuum:13,192 SCFH @ 3”H2O (-1oz)
6401 E. 40th St. Kansas City, Missouri 641296-14
1-816-924-3900 1-800-821-6583 FAX: 1-816-924-3903www.claybailey.com email: candbmfg@claybailey.com
OILFIELDThief haTches
256
Features “Ducks Nest” design of thief hatch with the same internal pressure and vacuum ports as the #56 above.Bolt Pattern:(16) - 1/2” dia holes on a 10 3/8” B.C.
Part No. Size Press Vac Wt.lbs 0256-01-0800 8” 4oz 0.4oz 380256-01-0810 8” 8oz 0.4oz 380256-01-0820 8” 12oz 0.4oz 380256-01-0830 8” 16oz. 0.4oz 38
256B
Features Durable breather vent for use on ASTs or tanks requiring large freeflowing ventilation. Aluminum lid is non-sparking and lockable. Base is standard cast iron with a hole pattern conforming to API specifications. Base available in aluminum. Screen is perforated 16ga.Bolt Pattern:(16) - 1/2” dia holes on a 10 3/8” B.C.
Part No. Size Wt.lbs 0256-01-8000 8” 18
Repair Parts ListingPart Number Description Material0056-05-3000 Pressure Gasket EPDM0056-05-3001 Vacuum Gasket EPDM0056-05-3002 Pressure Gasket VITON*0056-05-3003 Vacuum Gasket VITON*0056-05-3004 Pressure Gasket ECH0056-05-3005 Vacuum Gasket ECH0056-05-3006 Pressure Gasket Buna-N0056-05-3007 Vacuum Gasket Buna-N0056-05-3050 Envelope Pressure Gasket Buna-N0056-09-1808 Hinge Pin Mild Steel
Maintenance Note:Check gaskets periodically for cracking or UV damage, replace if necesssary. Inspect internal valve for blockage or debris.
Airflow Rating:256 Pressure: 256 Vacuum:549,117 SCFH @ 2.5psig 13,192 SCFH @ 3”H2O (-1oz)
6401 E. 40th St. Kansas City, Missouri 64129 6-14
1-816-924-3900 1-800-821-6583 FAX: 1-816-924-3903www.claybailey.com email: candbmfg@claybailey.com
OILFIELD Thief haTches
52
Features Obround pressure/vacuum relief thief hatch. Dead weight standard relief settings are 2oz pressure and 0.4oz vacuum, with other settings available. Standard gasket material is neoprene with other materials available. Bolt pattern conforms to API specifications.Bolt Pattern:8x18 - 10 3/8” x 20 3/8”8x22 - 10 3/8” x 24 3/8”
Part No. Size Press Vac Wt.lbs 0052-01-1810 8x18 2oz 0.4oz 36.00052-01-1820 8x18 4oz 0.4oz 40.00052-01-2210 8x22 2oz 0.4oz 44.00052-01-2220 8x22 4oz 0.4oz 49.0
Repair Parts ListingPart Number Description Material0052-01-1801 8x18 Base Cast Iron0052-01-1812 8x18 Cover Only Cast Iron0052-01-1815 8x18 2oz Press / 0.4oz Vac Cover Assembly Cast Iron0052-01-2201 8x22 Base Cast Iron0052-01-2212 8x22 Cover Only Cast Iron0052-01-2215 8x22 2oz Press / 0.4 oz Vac Cover Assembly Cast Iron0052-03-1803 Cap Aluminum0052-03-1807 Shelve Aluminum0052-05-1000 Cap Gasket EPDM0052-05-1812 8x18 Cover Gasket Neoprene0052-05-1813 8x18 Cover Gasket EPDM0052-05-1814 8x18 Cover Gasket Viton0052-05-1815 8x18 Cover Gasket ECH0052-05-2222 8x22 Cover Gasket Neoprene0052-05-2223 8x22 Cover Gasket EPDM0052-05-2224 8x22 Cover Gasket Viton0052-05-2225 8x22 Cover Gasket ECH0052-05-4000 Vacuum Gasket Buna-N0052-05-4001 Vacuum Valve Buna-N0052-05-4002 Vacuum Valve Viton0052-05-4003 Vacuum Valve EPDM0052-05-8018 8x18 Base Gasket CIR0052-05-8022 8x22 Base Gasket CIR0052-09-1814 Hinge Pin Cold Rolled Steel
Maintenance Note:52 - Check gaskets periodically for cracking or UV damage, replace if necesssary. Inspect internal valve for blockage or debris.256B - Check gaskets periodically for cracking or UV damage, replace if necesssary.
Airflow Rating:52, (8” x 18”) Pressure: 52, (8” x 18”) & (8” x 22”) Vacuum: 52, (8” x 22”) Pressure:1,194,396 SCFH @ 2.5psig 12,231 SCFH @ 3”H2O (-1oz) 1,476,002 SCFH @ 2.5psig
6401 E. 40th St. Kansas City, Missouri 641296-14
1-816-924-3900 1-800-821-6583 FAX: 1-816-924-3903www.claybailey.com email: candbmfg@claybailey.com
OILFIELD
54-20
Features 20” Dual Purpose Thief Hatch is access hatch and pressure vacuum relief. Aluminum base and cover provide safe, non-sparking opening. Standard neoprene gaskets with other gasket material available upon request. Flange bolt pattern conforms to API specifications.Bolt Pattern:(28) - 5/8” dia holes on a 22” B.C.
Part No. Size Press Vac Wt.lbs 0054-03-2000 20” 2oz 0.4oz 68.00054-03-2010 20” 4oz 0.4oz 68.0
Thief haTches
54 - 20 Repair Parts ListingPart Number Description Material0054-01-2002 Cap Cast Iron0054-01-2009 Weight (Each Wt. Adds 1oz to Press Setting) Cast Iron0054-03-2004 Vacuum Valve Aluminum0054-03-2005 2oz Press / 0.4oz Vac Cover Assembly Aluminum0054-03-2012 2oz Press Cover Only Aluminum0054-03-2041 Base Aluminum0054-05-2004 Vacuum Valve Gasket ECH0054-05-2012 Cover Pressure Gasket ECH0054-05-2014 Cover Pressure Gasket White FDA Approved0054-05-2015 Vacuum Valve Gasket White FDA Approved0054-05-2022 Base Gasket CIR0054-05-2063 Cover Pressure Gasket Neoprene0054-07-2009 Hinge Pin 304 Stainless Steel0887-05-1016 Vacuum Valve Gasket Neoprene
Maintenance Note: Periodic examination of unit is recommended. Replace damaged or worn gaskets and hardware as required.
Airflow Rating: 54-20 Pressure: 54-20 Vacuum: 3,146,216 SCFH @ 2.5psig 90,086 SCFH @ 3”H2O (-1oz)
6401 E. 40th St. Kansas City, Missouri 64129 6-14
1-816-924-3900 1-800-821-6583 FAX: 1-816-924-3903www.claybailey.com email: candbmfg@claybailey.com
OILFIELD Thief haTches
255
Features Economical, spring loaded thief hatch offering pressure and vacuum releif. Low profile design with standard APZ bolt pattern. Options include gasket material and pressure settings.
Part No. Size Press Vac Wt.lbs 0255-03-0800 8” 4 oz 0.4 oz0255-03-0810 8” 8 oz 0.4 oz0255-03-0811 8” 10 oz 0.4 oz0255-03-0812 8” 12 oz 0.4 oz0255-03-0816 8” 16 oz 0.4 oz
6401 E. 40th St. Kansas City, Missouri 641296-14
1-816-924-3900 1-800-821-6583 FAX: 1-816-924-3903www.claybailey.com email: candbmfg@claybailey.com
OILFIELDThief haTches
CLAY & BAILEY MODEL 52
FLOW RATE vs VACUUM
WITH 0.4 OZ SETTING
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VACUUM (OZ./SQ.IN.)
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Model 52 8 x 18
2 Oz per Sq. In. Setting
Pressure vs Flow Rate
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CLAY & BAILEY MFG. CO.MODEL 52
0.4 OZ VACUUM
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0.4 OZ VACUUM CLAY & BAILEY MFG. CO.MODEL 52
PRESSURE vs FLOW RATE
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6401 E. 40th St. Kansas City, Missouri 64129 6-14
1-816-924-3900 1-800-821-6583 FAX: 1-816-924-3903www.claybailey.com email: candbmfg@claybailey.com
OILFIELD Thief haTchesCLAY & BAILEY MFG. CO.
MODEL 54-8 0.4 OZ. SETTING
VACUUM vs FLOW RATE
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VACUUM (OZ./SQ.IN.
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CLAY & BAILEY MFG. CO.MODEL 54-8
PRESSURE vs FLOW RATE
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4 OZ. PRESSURE
6401 E. 40th St. Kansas City, Missouri 641296-14
1-816-924-3900 1-800-821-6583 FAX: 1-816-924-3903www.claybailey.com email: candbmfg@claybailey.com
OILFIELDThief haTches
CLAY & BAILEY MFG.
MODEL 256
FLOW RATE vs VACUUM
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CLAY & BAILEY MFG. CO.
MODEL 56/255/256
PRESSURE vs. FLOW RATE
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4OZ PRESSURE OZ PRESSURE10OZ PRESSURE12OZ PRESSURE16OZ PRESSURE
installation and maintenance instructions for theclay & bailey mfg. co. thief hatches
operation of thief hatchClay & Bailey thief hatches are designed to provide trouble-free operation with a minimum of care and attention. The primary function is to prevent the loss of vapors in a closed storage system and provide pressure and vacuum relief.
installation of thief hatchThe Spring Loaded Thief Hatch can be installed on a matching API flange bolting circle of 16 bolt holes on a 10-3/8” circle for a nominal 8” opening. Place the base gasket on the bottom of the base and insert the 16 bolts from the bottom up by reaching inside through the opening in the deck and then attach each nut to the bolt from the outside. Tighten all nuts in a crosswise configuration making sure the hatch is fastened securely.
maintenance of gaskets and springsScheduled maintenance should be performed on a timely basis and more frequently in corrosive or dusty atmospheres. Normal maintenance requires the working gaskets and springs to be inspected and cleaned. Under normal operating conditions the pressure and vacuum gaskets and springs should be replaced once a year. The base gasket need only be replaced when a leak is noticed at the bolting area or if the hatch is removed.
general maintenanceTo ensure efficient operation of the thief hatch, the pressure and vacuum seats and gaskets should be wiped off carefully every time the hatch is opened. This prevents accumulation of residue that can deteriorate the performance of the valves.
Clay & Bailey ManufaCturing CoMpany
6401 east 40th StreetKansas City, Mo 64129
Phone: 1-800-821-6583 • 1-816-924-3900fax: 1-816-924-3903
e-Mail: candbmfg@claybailey.com www.claybailey.com