SVB | Safety Relief Valves | Pipeline Accessories

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SVB

Introduction

SVB Safety Valves

The SVB Safety Valves are used for over-pressure protection on unfired pressure vessels in saturated steam systems. Valves are 100% factory tested and made in the USA.

How It Works

In the event steam pressure increases to the set point, the safety valve will “pop open” discharging steam faster than it can be produced; allowing system pressure to return to safe levels at which point the valve will close.

Features

Stainless Steel springs
Teflon®-PFA seat resists corrosive boiler chemicals
Two control rings for maximum performance and adjustability
Tapped body drain allows piping of condensate away
from valve to protect the internals from fouling

SVB Series

The SVB Safety Relief Valves are used for over-pressure protection on unfired pressure vessels in saturated steam systems.

Model	Inlet Pipe Size	Inlet Type	Outlet Pipe Size	Outlet Type	Orifice Size	Max Set Pressure (psig)	Max Capacity (lb/hr)	Weight (lbs)
SVB-12M-13S-D	1/2"	MNPT	3/4"	FNPT	.129" (D)	250	1590	1.6
SVB-13M-13S-D	3/4"	MNPT	3/4"	FNPT	.129" (D)	250	1590	1.6
SVB-13M-14S-E	3/4"	MNPT	1"	FNPT	.230" (E)	250	2834	2.0
SVB-14M-14S-E	1"	MNPT	1"	FNPT	.230" (E)	250	2834	2.2
SVB-14M-15S-F	1"	MNPT	1 1/4"	FNPT	.359" (F)	250	4425	4.1
SVB-15M-15S-F	1 1/4"	MNPT	1 1/4"	FNPT	.359" (F)	250	4425	4.3
SVB-15M-16S-G	1 1/4"	MNPT	1 1/2"	FNPT	.586" (G)	250	7260	7.4
SVB-16M-16S-G	1 1/2"	MNPT	1 1/2"	FNPT	.586" (G)	250	7260	7.6
SVB-16M-17S-H	1 1/2"	MNPT	2"	FNPT	.919" (H)	250	11328	11.5
SVB-17M-17S-H	2"	MNPT	2"	FNPT	.919" (H)	250	11328	11.6
SVB-17M-18S-J	2"	MNPT	2 1/2"	FNPT	1.509" (J)	250	18601	19.9
SVB-18M-18S-J	2 1/2"	MNPT	2 1/2"	FNPT	1.509" (J)	250	18601	20.8
SVB-16S-18S-J	1 1/2"	FNPT	2 1/2"	FNPT	1.509" (J)	250	18601	20.0

Downloads

Catalog Spec Sheet (pdf)

I&M (pdf)

Product Overview

The SVB Safety Valves are used for over-pressure protection on unfired pressure vessels in saturated steam systems. Valves are 100% factory tested and made in the USA.

Features

• Stainless Steel springs
• Teflon®-PFA seat resists corrosive boiler chemicals
• Two control rings for maximum performance and adjustability
• Tapped body drain allows piping of condensate away from valve to protect the internals from fouling

How It Works

Selection / Sizing / Capacities

Note:
1) Ratings are 90% of actual capacity.
2) For Set PRessures over 250 PSIG, Consult factory.
3) For other sized, consult factory.

Dimensions and Weights

Sample Specification

Safety valves shall be cast bronze construction with stainless steel springs, Teflon-PFA seats and stainless steel stems. Units shall be qualified to the ASME Boiler Code, Section VIII and suitable for steam service.