Spence
-
Figure 31/41 Series
Bronze & Cast Iron Series
Safety Relief Valves -
Figure 31/41 Series
Flanged Cast Iron
Safety Relief Valves -
Figure 800 Series
Screwed Bronze, Steel & Stainless Steel
Safety Relief Valves -
Figure 15 Series
Cast Iron & Aluminum Safety Valve
Safety Relief Valves -
Drip Pan Elbows
Model DPE Drip Pan Elbows
Safety Valves
Figure 31, 41, and 41A safety valves are top guided, full nozzle and high capacity. Their unitized bonnet/base design and two ring control make them extremely dependable in terms of pop action, seat tightness and repeatability. The single cap and lifting lever permits manual valve opening (testing) with little force required.
| Features |
|---|
| Meets ASME Section I & VIII Code for Steam Air & Non-hazardous Gas Service |
| “V” or “UV” National Board Certified |
| Dual Ring Control |
| Rugged Cast Unitized Bonnet |
| SS Spring Supplied as Standard |
| Full Nozzle |
| Soft Seat Design Available |
| Open Lever Assembly |
| Application Data | Options |
|---|---|
| Steam Boilers | Top Outlet Discharge |
| Pressure Reducing Stations | BSP Connections |
| Unfired Steam Pressure Vessels & Lines | Soft Seated Valves |
| Accumulators, Sterilizers, Steam Cleaners |
Plain Cap (on selected models) |
| Air compressors, Cookers, Receivers |
|
| Pneumatic Systems | |
| OEM Equipment |
| Models |
|---|
| 0031 - ASME Section I Steam Bronze Trim |
| 0041 - ASME Section VIII Steam Bronze Trim |
| 041A - ASME Section VIII Air Bronze Trim |
| 41AT - Top Outlet on 041A |
| 41AA - Plain Cap on 041A (D orifice only) |
| 0032 - SS Base & Disc on 0031 |
| 0042 - SS Base & Disc on 0041 |
| 042A - SS Base & Disc on 041A |
| 42AT - SS Base & Disc on 41AT |
| 42AA - SS Base & Disc on 41AA (D orifice only) |
| 0033 - EPDM Soft Seat on 0031 |
| 0043 - EPDM Soft Seat on 0041 |
| 043A - Viton Soft Seat on 041A |
| 43AT - Viton Soft Seat on 41AT |
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Figure 31, 41, and 41A safety valves have two piece bodies and enclosed springs. Their rugged construction and two ring control make them extremely dependable in terms of pop action, seat tightness and repeatablility. The lifting lever permits manual valve opening (testing) with little force required on the lever when system pressure is at 75% of the valve's set pressure or higher.
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The Figure 800 Series has a non-adjustable blow down that is less than 10% for steam, air or gas and less than 20% for liquid. Consisting of a unitized bonnet design this product guarantees proper guiding. The valve has a full nozzle for optimum flow performance and internal trim of stainless steel. This valve is extremely dependable in terms of pop action, seat tightness and repeatability. Set pressures up 300psi for steam and up to 900psi for air, gas or liquids.
| Figure 810 |
|---|
| Figure 810 is a safety relief valve for over pressure protection of liquid air steam and gas service from 5 to 250 psig. |
| It is rated from -20 to 406°F. |
| Bronze Body (bonnet and base) Stainless Steel Disc |
| ASME Code Section VIII |
| Meets API527 Leakage Standard requiring bubble tight shutoff up to 90% set pressure. |
| Available with Plain Cap, Packed Lever, and Open Lever Designs |
| 'UV' National Board Certified |
| Figure 812 |
| Figure 812NDCA is a safety relief valve for over pressure protection of liquid air steam and gas service from 5 to 250 psig. |
| It is rated from -20 to 406°F * |
| Bronze Body (bonnet and base) 316 SST and EPDM Soft Disc |
| ASME Code Section VIII |
| Meets API527 Leakage Standard requiring bubble tight shutoff up to 90% set pressure. |
| Available with Plain Cap, Packed Lever, and Open Lever Designs |
| 'UV' National Board Certified |
| Figure 814 |
| Figure 814NFEA is a safety relief valve for over pressure protection of liquid air steam and gas service from 5 to 250 psig. |
| It is rated from -20 to 400°F. |
| Bronze Body (bonnet and base), 316 SST and VITON Disc |
| ASME Code Section VIII |
| Meets API527 Leakage Standard requiring bubble tight shutoff up to 90% set pressure. |
| Available with Plain Cap, Packed Lever, and Open Lever Designs |
| 'UV' National Board Certified |
| Figure 820 |
| Figure 820NFEA is a safety relief valve for over pressure protection of liquid air steam and gas service from 5 to 600 psig (Max 300 PSIG Steam Pressure). |
| It is rated from -20 to 422°F. |
| Has Bronze Body(bonnet) with Stainless Steel Base & Disc. |
| ASME Code Section VIII |
| Meets API527 Leakage Standard requiring bubble tight shutoff up to 90% set pressure. |
| Available with Plain Cap, Packed Lever, and Open Lever Designs |
| 'UV' National Board Certified |
| Figure 822 NFEA |
| Figure 822 is a safety relief valve for over pressure protection of liquid air steam and gas service from 5 to 600 psig (Max. Steam Pressure 300 PSIG). |
| It is rated from -20 to 400°F. |
| Has Bronze Body(bonnet), 316 SST Base, Seat & EPDM Disc |
| ASME Code Section VIII |
| Meets API527 Leakage Standard requiring bubble tight shutoff up to 90% set pressure. |
| Available with Plain Cap, Packed Lever, and Open Lever Designs |
| 'UV' National Board Certified |
| Figure 824 NFEA |
| Figure 824 is a safety relief valve for over pressure protection of liquid air steam and gas service from 5 to 600 psig (Max. Steam Pressure 250 PSIG). |
| It is rated from -20 to 400°F. |
| Has Bronze Body(bonnet), 316 SST Base, Seat & Viton Disc |
| ASME Code Section VIII |
| Meets API527 Leakage Standard requiring bubble tight shutoff up to 90% set pressure. |
| Available with Plain Cap, Packed Lever, and Open Lever Designs |
| 'UV' National Board Certified |
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The Figure 15 Series are cost effective, maintaining a high degree of repeatability at a low cost. The valve inlet and outlet has one integral casting assuring proper alignment of disc, seat and spindle for smooth action.
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The Drip Pan Elbow shall be a minimum of the size of the safety valve discharge and installed on the discharge side of the safety valve. It shall have a pan to collect condensate in the steam riser pipe and a drain to pipe away the condensate.
The Spence Safety Valve (Model DPE) Drip Pan Elbows are recommended for installation on outlet/discharge pipes for equivalent safety valves used on steam service. They are easily installed on female NPT or flange and are compatible with all Spence ASME Safety Valves.
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