NPT and BSPT Type

MH-AMARV

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NPT and BSPT Type

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NPT and BSPT Type

Technical Features

Designed, manufactured: accordance with UL 2573/FM1344.
Test Standard:UL 2573/FM1344.
Temperature: 0 to 100°C
Normal size: 1"
Normal Pressure:175PSI
Test Pressure: Leakage Test 7PSI/263PSI, Strength Test 350PSI
Use in wet pipe sprinkler systems, or with horizontal split case pumps.
The inlets of the valves are 1-11 1/2NPT or Rc 1,the outlets of the valves are 1/2-14NPT or Rc 1/2.

Advantages: This valve can ensure the excellent leak tightness and good venting capabilties under the rated working pressure.

Valve Material List

S./N.	Description of Parts	Materials
1	Valve Body	Ductile Iron
2	Filter Screen	SS316
3	Gasket Ring	Carbon Steel
4	Bonnet	Ductile Iron
5	Yoke	SS316
6	Valve Seat	SS316
7	Bolt	SS316
8	Valve Shaft	SS316
9	E Type Retainer Ring	SS304
10	Ball	SS316
11	Big Protective Cover	Plastic
12	Lever	SS316
13	Poppet	EPDM
14	Spring Washer	SS316
15	Hex Socket Head Bolt	SS304
16	Asbestos-free Gasket	CN-705
17	Spring Washer	Carbon Steel
18	Bolt	Carbon Steel
19	Plug	Ductile Iron
20	Small Protective Cover	Plastic

Connections for Installation

The inlet connections shall be made using the external threads of tapered pipe thread 1-11 1/2NP conforming to the standard ASME B 1.20.1-2013, and the outlet connections shall be made using the external threads of tapered pipe thread 1/2-14NPT conforming to the standard ASME B 1.20.1-2013.
The inlet connections shall be made using the external threads of tapered pipe thread R21 conform to the standard ISO
7- 1-1994,and the outlet connections shall be made using the external threads of tapered pipe thread R2 1/2 conforming tothe standard ISO 7-1-1994.

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