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Safety relief valves, also known as pressure relief valves, open when a preset pressure point is reached and release fluid until the pressure drops to an acceptable level. These valves control or ...Read More
Style | Model | Seat Material | BtuH | Disc Material | Spring Material | Factory Set Pressure | Inlet Size | Outlet Size | Overall Height | Price | |
---|---|---|---|---|---|---|---|---|---|---|---|
A | 1 1/4 174A-150 | Bronze | 6,340,000 | Silicone | Stainless Steel | 150 psi | 1.25" | 1.25" | 8.375" | £753.40 | |
A | 1 1/4 174A-100 | Bronze | 4,399,000 | Silicone | Stainless Steel | 100 psi | 1.25" | 1.25" | 8.375" | £828.75 | |
B | 2 174A-050 | Bronze | 5,575,000 | Silicone | Stainless Steel | 50 psi | 2" | 2" | 11.625" | £1,384.22 | |
C | 1 174A-150 | Bronze | 3,795,000 | Silicone | Stainless Steel | 150 psi | 1" | 1" | 5.75" | £481.58 | |
A | 1 1/2 174A-150 | Bronze | 7,630,000 | Silicone | Stainless Steel | 150 psi | 1.5" | 1.5" | 9" | £1,134.78 | |
A | 1 174A-050 | Bronze | 1,470,000 | Silicone | Stainless Steel | 50 psi | 1" | 1" | 5.75" | £480.03 | |
A | 1 1/4 174A-075 | Bronze | 3,429,000 | Silicone | Stainless Steel | 75 psi | 1.25" | 1.25" | 8.375" | £798.59 | |
D | 2 174A-075 | Bronze | 7,770,000 | Silicone | Stainless Steel | 75 psi | 2" | 2" | 11.625" | £1,384.22 | |
D | 3/4 174A-075 | Bronze | 1,320,000 | Silicone | Stainless Steel | 75 psi | 3/4" | 3/4" | 5.125" | £168.91 | |
D | 2 174A-125 | Bronze | 12,170,000 | Silicone | Stainless Steel | 125 psi | 2" | 2" | 11.625" | £1,610.57 | |
D | 3/4 174A-125 | Bronze | 2,070,000 | Silicone | Stainless Steel | 125 psi | 3/4" | 3/4" | 5.125" | £168.91 | |
D | 2 174A-150 | Bronze | 14,370,000 | Silicone | Stainless Steel | 150 psi | 2" | 2" | 11.625" | £1,453.44 | |
A | 1 1/4 174A-125 | Bronze | 5,370,000 | Silicone | Stainless Steel | 125 psi | 1.25" | 1.25" | 8.375" | £768.48 | |
D | 3/4 174A-150 | Bronze | 2,445,000 | Silicone | Stainless Steel | 150 psi | 3/4" | 3/4" | 5.125" | £168.91 | |
D | 3/4 174A-100 | Bronze | 1,695,000 | Silicone | Stainless Steel | 100 psi | 3/4" | 3/4" | 5.125" | £168.86 | |
D | 3/4 174A-050 | Bronze | 950,000 | Silicone | Stainless Steel | 50 psi | 3/4" | 3/4" | 5.125" | £169.00 | |
D | 2 174A-100 | Bronze | 9,970,000 | Silicone | Stainless Steel | 100 psi | 2" | 2" | 11.625" | £1,610.57 | |
E | 2 174 A | Metal | 3,815,000 | Buna-N | Brass | 30 psi | 2" | 2" | 11.625" | £1,309.43 | |
F | 1 174A 100 | Metal | 2,635,000 | Nonmetallic | Stainless Steel | 100 psi | 1" | 1" | 5.75" | £363.25 | |
F | 1 174A 125 | Metal | 3,215,000 | Nonmetallic | Stainless Steel | 125 psi | 1" | 1" | 5.75" | £361.15 | |
F | 1 174A 75 | Metal | 2,055,000 | Nonmetallic | Stainless Steel | 75 psi | 1" | 1" | 5.75" | £402.09 | |
G | 174 A-3/4" | Metal | 650,000 | Nonmetallic | Stainless Steel | 30 psi | 3/4" | 3/4" | 5.125" | £111.44 | |
E | 11/4 174 A | Metal | 1,682,000 | Buna-N | Brass | 30 psi | 1.25" | 1.25" | 8.375" | £589.41 |
Yes, they can. For example, high ambient temperatures can affect the set pressure of the valve, whereas low ambient temperatures (combined with moisture) can make valves freeze, leading to possible malfunction.
We recommended vertically installing the valve. This way, it can be ensured that the valve body is self-draining and that set pressure is achieved. If the safety valve is installed in any position other than vertical and upright, it may adversely affect its performance and lifespan.
Contaminants like dirt / lint / rust / sludge, or misalignment of the valve can cause it to stick and not function properly.
The orifice diameter is the diameter of the internal opening of the valve, which is used to determine the flow capacity. Inlet size refers to the interface of the valve or the size / type of the threads where you attach it.