Pressure relief Valves and Relief Valve Manifolds, Fully Internal Pop-Action Pressure relief Valves for DOT Forklift Cylinders, Semi-Internal Pop Action Pressure Relief Valves for ASME Containers and Large Storage Containers

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Fully Internal "Pop-Action" Pressure Relief Valves for DOT Fork Lift Cylinders

Designed specifically for use as a primary relief valve on forklift cylinders, the 8545AK reduces the possibility of improper functioning of the relief mechanism due to foreign material build up. All guides, springs, stem and adjusting components are located inside the cylinder - removed from the direct exposure of foreign materials and debris from the atmosphere.

NFPA Pamphlet #58 requires that: "All containers used in industrial truck (including forklift truck cylinders) service shall have the container pressure relief valve replaced by a new or unused valve within 12 years of the date of manufacture of the container and each 10 years thereafter."

Part Number	Container Type	Start to Discharge Setting (PSIG)	Container Connection M. NPT	Flow Capacity SCFM / Air**	Accessories (Order Separately)			Order Relief Valve
				(ECII Rated at 480 PSIG)	Protective Cap (Included)	Deflectors***
						45° Elbow	90° Elbow
8545AK	DOT	375	^3/4"	400*	7545-40	7545-14A	7545-12

* Classified by U.L. in accordance with Compressed Gas Association Pamphlet S-1.1 Pressure Device Standards for Cylinders.

Meets requirements for use on DOT containers with 262 pounds or less weight of water or 109 pounds or less of LP-Gas.

** Flow rates are shown for bare relief valves. Adapters and pipeaways will reduce flow as discussed in forewording information.

*** Order protective cap #8545-41 or 7545-40.

7545-12

90° Adapter

7545-14A 45° Adapter

Semi-Internal "Pop-Action" Pressure Relief Valves for ASME Containers

Designed for use as a primary relief valve on ASME containers such as 250, 500 and 1,000 gallon tanks. Underwriters’ Laboratories lists containers systems on which these types of valves are mounted outside the hood without additional protection, if mounted near the hood and fitted with a protective cap.

Part Number	Start to Discharge Setting (PSIG)	Container Connection M. NPT	Overall Height (approx.)	Height Above Coupling (approx.)	Wrench Hex Section	Flow Capacity SCFM / Air		Suitable for Tanks with Surface Area Up to:*	Protective Cap (Included)	Order
Part Number	Start to Discharge Setting (PSIG)	Container Connection M. NPT	Overall Height (approx.)	Height Above Coupling (approx.)	Wrench Hex Section	UL (at 120% of Set Pressure)	ASME (at 120% of Set Pressure)	Suitable for Tanks with Surface Area Up to:*	Protective Cap (Included)
7583G	250	^3/4"	8^3/16"	1 ^7/16"	1 ^3/4"	1,980	1,806	80 Sq. Ft.	7583-40X
8684G		1"	9 ^3/8"	1 ^9/16"	1 ^7/8"	2,620	2,565	113 Sq. Ft.	8684-40
8685G		1 ^1/4"	11 ^1/16"	1 ^11/16"	2 ^3/8"	4,385	4,035	212 Sq. Ft.	7585-40X

* Per NFPA Pamphlet #58, Appendix D. Area shown is for UL or ASME flow rating—whichever is larger.

Semi-Internal "Pop-Action" Pressure Relief Valves for Large Storage Containers

Designed especially for use as a primary relief valve on large stationary storage containers, these low profile relief valves are generally mounted in half couplings. However, they are designed so that the inlet ports clear the bottom of a full 2" coupling. This assures that the relief valve should always be capable of maximum flow under emergency conditions.

Part Number	Start to Discharge Setting (PSIG)	Container Connection M. NPT	Flow Capacity SCFM / Air*			Accessories		TEECO
			UL (at 120% of Set Pressure)	ASME (at 120% of Set Pressure)
					Suitable for Tanks w/ Surface Area Up to:	Protective Cap	Pipeaway Adapter	Order Relief Valves
7534B	125	2"	6,025	---	319 Sq. Ft.	7534-40	7545-12
7534G	250		11,675	10,422	708 Sq. Ft.

Products>>Section A- RegO / ECII>>Pressure Relief Valves and Relief Valve Manifolds>>Page A-19