UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

ASSE 1018

Performance Requirements for Trap Seal Primer Valves – Potable Water Supplied

active, Most Current
Buy Now
Organization: ASSE
Publication Date: 23 February 2001
Status: active
Page Count: 16
ICS Code (Sanitary installations): 91.140.70
ICS Code (Other valves): 23.060.99
scope:

Description

This type of device is located in the domestic water distribution system and is designed to supply potable water to a drain trap to maintain the water seal. A means for the prevention of back-siphonage shall be incorporated as part of the device and shall comply with backflow siphonage testing in Section 3.4.

Size

Water distribution line connections shall be not less than 1/2 NPT pipe size. Trap seal makeup (discharge branch) connections shall be minimum 1/2 NPT pipe size.

Flow

The rate of water flow to the trap shall be fixed or adjustable. If the water flow to the trap is adjustable and the means of adjustment is located downstream of the back-siphonage backflow device, the means of adjustment shall not be capable of shutting off the flow of water. The device shall provide intermittent discharge to the trap in response to the flow or pressure changes in the supply line.

Pressure Requirements

Device shall be designed to withstand a minimum hydrostatic working pressure of 862.5 kPa (125 psi).

Operating Range

Devices shall be designed for minimum operating range of 138-552 kPa (20-80 psi).

Sliding Parts

Parts shall prevent galling and sticking when tested to Section 3.2, Cycle Test.

Document History

ASSE 1018
February 23, 2001
Performance Requirements for Trap Seal Primer Valves – Potable Water Supplied
Description This type of device is located in the domestic water distribution system and is designed to supply potable water to a drain trap to maintain the water seal. A means for the prevention of...
February 23, 2001
Performance Requirements for Trap Seal Primer Valves - Potable Water Supplied
Description Devices covered by this standard are designed primarily to supply water to drain traps which have infrequent use and in which water evaporation would allow sewer gas to enter the...
January 1, 1986
Performance Requirements for Trap Seal Primer Valves Water Supply Fed
A description is not available for this item.

References

Advertisement