Spence





Figure 31/41 Series Bronze & Cast Iron Series

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


Back to Top

View Figure 31 Inventory Online
View Figure 32 Inventory Online
View Figure 33 Inventory Online





Figure 31/41 Flanged Cast Iron

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.

Back to Top

View Figure 31 Inventory Online





Figure 800 Series

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
Features:
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
Features:
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
Features:
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.
Features:
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
Features:
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
Features:
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


Back to Top

View Figure 810 Inventory Online
View Figure 812 Inventory Online
View Figure 814 Inventory Online




Figure 15 Series

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.

Back to Top

Contact Us for Figure 15 Inventory Information





Drip Pan Elbow Safety Valve

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.

Back to Top

Contact us for Drip Pan Elbows Inventory