Technical data

TECHNICAL DATA
March 28, 2013
Dry 120c
DRY VALVE
MODEL F-1
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Telephone: [phone] Technical Services: 877-384-5464 Fax: [phone] Email: [e-mail]
4. INSTALLATION
For proper operation and approval, the valve must be trimmed in accordance with Viking Model F-1 Dry Valve Trim Charts.
The Model F-1 Dry Valve must be installed in the vertical position as shown in Figure 1.
Air or nitrogen supply to the dry pipe system must be clean, dry, and oil free.
Automatic air supplies must be regulated, restricted, and from a continuous source. A Viking air maintenance device should be
installed on each system equipped with an automatic air supply. Never exceed 60 PSI (4.1 bar) pressure in the system piping
with the dry valve clapper closed.
The dry valve must be installed in an area not subject to freezing temperatures or physical damage. If required, provide a valve
house (enclosure) with adequate heat around the dry valve and trim. Freezing temperatures and/or excessive pressure will dam-
age the dry valve member assembly.
When corrosive atmospheres and/or contaminated water supplies are present, it is the owner’s responsibility to verify compat-
ibility with the Model F-1 Dry Valve and associated equipment.
Consider installation of the Viking accelerator and anti-flood device. An accelerator (quick opening device) is recommended
on all differential dry pipe valves and is required on dry pipe systems of certain capacities. Refer to Installation Standards and
Authorities Having Jurisdiction. If an accelerator is to be installed, verify that the appropriate Trim Chart is used.
Prior to installing the valve, thoroughly flush the water supply piping to verify that no foreign matter is present.
A. General Installation Instructions
1. Verify that necessary Trim Charts and Technical Data for the dry valve and associated equipment are available.
2. Remove all plastic thread protectors from the openings of the dry valve.
3. Apply a small amount of pipe-joint compound or tape to the external threads of all pipe connections required. Take care not
to allow any compound, tape, or other foreign matter inside any of the nipples or openings of the dry valve or trim compo-
nents.
4. Install the Model F-1 Dry Valve and trim piping according to the current Model F-1 Dry Valve Trim Chart provided with the
Trim Package and the Viking Engineering and Design Data book. The Model F-1 Dry Valve must be installed in the vertical
position.
5. When installing a Viking accelerator and anti-flood device in conjunction with the Model F-1 Dry Valve, refer to the appropri-
1.
2.
3.
4.
5.
6.
7.
8.
Figure 2
Figure 1 - Take Out Dimensions
3”
(DN80)
4”
(DN100)
6”
(DN150)
A
18-1/4”
(464)
18-1/4”
(464)
20-1/16”
(510)
B
7”
(178)
7”
(178)
7-5/16”
(186)
C
16-3/4”
(425)
12-1/2”
(318)
14”
(356)
D
10”
(254)
10”
(254)
10”
(254)
E
11-13/16”
(300)
12”
(305)
14-3/4”
(375)
F
23”
(584)
23”
(584)
23”
(584)
G
34-1/2”
(876)
34-1/2”
(876)
36”
(914)