MODELS 215V/337 VACUUM RELIEF AND SAFETY VALVES
• Llarge nozzle design provides high capacity.
• Flat bronze valve seats are lapped for optimum performance.
• Warn ring offers easy adjustability for precise opening with minimum pre-open or simmer.
• Pivot between disc and spring corrects misalignment and compensates for spring side thrust.
• Model 215V has seal cap for vacuum service.
• Model 337 has ‘lift-pin’ lift device for easy manual testing.
• Bronze nozzle and disc as standard. optional SS trim available.
• Each valve tested and inspected for pressure setting and leakage.
GENERAL APPLICATION
Model 215V is suitable for the protection of high volume vacuum pumps, conveying systems and light gauge tanks. Model 337 for the protection
of low to medium pressure high volume blowers, compressors, conveying systems and bulk hauling trailers/equipment.
TECHNICAL DATA
| Connections: | Threaded NPT or BSPT |
| Temperature range: | -20° to 406°F (-29° to 208°c) |
| Vacuum range | |
| (Type 215V): | 2" to 29" Hg (67.7 to 982 mbarg) |
| Pressure range: | 15 psig (1 barg) only |
| (Type 337): | 1 to 60 psig (0.07 to 4.1 barg) |
| Codes: | |
| Type 215V: | PED |
| Type 337: | ASME VIII and PED |
PARTS AND MATERIALS
| No. | Part Name | 215V | 337 |
| 1 | Nozzle[1] | Bronze, SB62 or brass B283-C48500 | Bronze, SB62 or brass B283-C48500 |
| 2 | Set screw | Steel A108-1018 brass plated | Steel A108-1018 brass plated |
| 3 | Regulator ring | Bronze B584 alloy 84400 | Bronze B584 alloy 84400 |
| 4 | Disc[1] | Bronze B584 alloy 84400 | Bronze B584 alloy 84400 |
| 5 | Spring step | Steel A-109 coated[3] | Steel A-109 coated[3] |
| 6 | Spring | SS, A313 TY 302 or 17-7 | SS, A313 TY 302 or 17-7 |
| 7 | Body | Cast iron A-126, CL A or B | Iron A-126, CL A or B |
| 8 | Compression screw | Bronze, B-584 alloy 84400 | Bronze, B584-C84400 |
| 9 | Stem[2] | N/A | Brass B16 |
| 10 | Lift pin[2] | N/A | Steel, zinc plated |
| 11 | Regulator ring set screw | N/A | Brass B16 |
| 12 | NPT drainplug | Steel A108-1018 | N/A |
NOTES
1. Disc and nozzle available in SSA-479 TY 316.
2. Stem and lift pin available on Model 337 only.
3. Corrosion preventative coating.
SPECIFICATIONS
| Size inlet and outlet | Dimensions, in inch (mm) | ||||
| NPS (DN) | A | B | C 215V | C 337 | Weight lb (kg) |
| 2 (50.8) | 3 ¼ (82.5) | 3 (76.2) | 6 ½ (165.1) | 7 (177.8) | 8 (3.6) |
| 2½ (63.5) | 3 ¾ (95.2) | 3 ½ (88.9) | 7 ⅝ (194.6) | 8 (203.2) | 12 (5.4) |
| 3 (76.2) | 4 ¼ (107.9) | 4 (101.6) | 8 ½ (215.9) | 9 (228.6) | 20 (9.07) |
Dimensions are for reference only.
Model 337
CAPACITIES
MODEL 337, non-code[1] and ASME section VIII air (SCFM), flow coefficient = 0.860
| Valve inlet and outlet size | |||
| 2” | 2½” | 3” | |
| Set pressure | orifice area, in2 | ||
| (psig) | 1.916 | 2.786 | 4.037 |
| 1 | 250 | 364 | 527 |
| 5 | 553 | 805 | 1166 |
| 10 | 773 | 1124 | 1628 |
| 15 | 988 | 1436 | 2081 |
| 20 | 1139 | 1656 | 2399 |
| 25 | 1290 | 1875 | 2718 |
| 30 | 1441 | 2095 | 3036 |
| 35 | 1607 | 2337 | 3386 |
| 40 | 1773 | 2578 | 3736 |
| 45 | 1939 | 2820 | 4086 |
| 50 | 2105 | 3061 | 4436 |
| 55 | 2271 | 3303 | 4786 |
| 60 | 2438 | 3544 | 5136 |
NOTE
1. No code stamp or ‘NB’ on nameplate below 15 psig set.
MODEL 337, non-code[1] and ASME section VIII air (nm3/h), flow coefficient = 0.860 – metric units
| Valve inlet and outlet size | |||
| 50 mm | 63 mm | 80 mm | |
| Set pressure | orifice area | ||
| (barg) | (12.361 cm2) | (17.974 cm2) | (26.045 cm2) |
| 0.5 | 1056 | 1536 | 2226 |
| 1.0 | 1468 | 2135 | 3094 |
| 1.5 | 1901 | 2765 | 4006 |
| 2.0 | 2251 | 3273 | 4743 |
| 2.5 | 2631 | 3825 | 5543 |
| 3.0 | 3015 | 4385 | 6553 |
| 3.5 | 3400 | 4944 | 7164 |
| 4.0 | 3784 | 5503 | 7974 |
NOTE
1. No code stamp or ‘NB’ on nameplate below 1.1 barg set.
MODEL 215V, non-code vacuum air (SCFM), flow coefficient = 0.860
| Valve inlet and outlet size | |||
| 2” | 2½” | 3” | |
| Relief set | orifice area, in2 | ||
| (in, HG) | 1.916 | 2.786 | 4.037 |
| 2 | 239 | 347 | 503 |
| 5 | 352 | 512 | 742 |
| 10 | 433 | 630 | 912 |
| 15 | 444 | 646 | 936 |
| 20 | 444 | 646 | 936 |
| 29 | 444 | 646 | 936 |
NOTE
1. Based on 10% accumulation.
MODEL 215V, non-code vacuum air (nm3/h), flow coefficient = 0.860 – metric units
| Valve inlet and outlet size | |||
| 50 mm | 63 mm | 80 mm | |
| Relief set | orifice area | ||
| (mbarg) | (12.361 cm2) | (17.974 cm2) | (26.045 cm2) |
| 50 | 330 | 481 | 696 |
| 100 | 453 | 658 | 954 |
| 150 | 536 | 779 | 1129 |
| 200 | 597 | 868 | 1257 |
| 250 | 641 | 933 | 1351 |
| 300 | 673 | 979 | 1419 |
| 350 | 694 | 1010 | 1463 |
| 400 | 705 | 1026 | 1486 |
| 450 | 708 | 1030 | 1492 |
| 500 | 713 | 1037 | 1503 |
| 550 | 713 | 1037 | 1503 |
| 600 | 713 | 1037 | 1503 |
| 650 | 713 | 1037 | 1503 |
| 700 | 713 | 1037 | 1503 |
| 750 | 713 | 1037 | 1503 |
NOTE
1. Based on 10% accumulation.
SELECTION GUIDE
| Example: | 215 | - | H | 01 | A | Q | E | 0015 |
| Model 215V 0337 | ||||||||
| Inlet size H 2" (50.8 mm) J 2½" (63.5 mm) K 3" (76.2 mm)" | ||||||||
| Variation 01 Bronze disc and nozzle 03 SS disc and nozzle 60 BSPT connections 63 SS disc and nozzle with BSPT connections | ||||||||
| Design revision Indicates non-interchangeable revision Current design is at revision ’A’ | ||||||||
| Valve service K air ASME section VIII (model 337 only) Q Vacuum (model 215V only) N Non-code air/gas (model 337 only) | ||||||||
| Spring material 215V: E SST type 302 or type 17-7 337: E SST type 302 (H-orifice up to 8 psi; J-orifice up to 20 psi; K-orifice up to 25 psi) M SST type 17-7 (H-orifice above 8 psi; J-orifice above 20 psi; K-orifice above 25 psi) | ||||||||
| Set pressure 337 1 psig (0.7 barg) (0001) to 60 psig (4.1 barg) (0060) 215V 2" Hg (68 mbarg) (0002) to 29" Hg (982 mbarg) (0029) vacuum |
