December 4, 2013
microfast® and microfastHP® quick resPonse Pendent sPrinklers
the Viking corporation, 210 n industrial Park drive, Hastings mi 49058 telephone: 269-945-9501 technical services: 877-384-5464 fax: 269-818-1680 email: firstname.lastname@example.org
taBle 1: aVailaBle sPrinkler temPerature ratinGs and finisHes
sprinkler temperature classification
sprinkler nominal temperature rating1
maximum ambient ceiling temperature2
Ordinary Ordinary Intermediate Intermediate High
135 °F (57 °C) 155 °F (68 °C) 175 °F (79 °C) 200 °F (93 °C) 286 °F (141 °C)
100 °F (38 °C) 100 °F (38 °C) 150 °F (65 °C) 150 °F (65 °C) 225 °F (107 °C)
Orange Red Yellow Green Blue
sprinkler finishes: Brass, Chrome, White Polyester, Black Polyester, Black PTFE, and ENT
corrosion-resistant coatings3: White Polyester, Black Polyester, and Black PTFE. ENT in all temperature ratings except 135 °F (57 °C).
The sprinkler temperature rating is stamped on the deflector.
Based on NFPA-13. Other limits may apply, depending on fire loading, sprinkler location, and other requirements of the Authority Having Jurisdiction. Refer to specific installation standards.
The corrosion-resistant coatings have passed the standard corrosion test required by the approving agencies indicated in the Approval Charts. These tests cannot and do not represent all possible corrosive environments. Prior to installation, verify through the end-user that the coatings are com- patible with or suitable for the proposed environment. For automatic sprinklers, the coatings indicated are applied to the exposed exterior surfaces only. Note that the spring is exposed on sprinklers with Polyester, PTFE, and ENT coatings. For ENT coated automatic sprinklers, the waterway is coated.
figure 2: Wrench 16036W/B for recessed Pendent sprinklers