Packed valves require two different seals: a 360º seal on the stem and a 360º seal on the stuffing box. The Conval Bellows Seal Valve removes these two leak paths.

Conval Bellows Seal Valves are used when packed valves may not reliably contain light gases or hazardous system fluids. The multi-ply Inconel™ static bellows stem seal is more reliable in most applications than sliding stem seals.

Conval Bellows Seal Valves have two back-up stem seals, a graphite packing and a pressure actuated backseat to contain system fluids in the unlikely event of a Bellows rupture.

Meets all the requirements of MSS-SP117.
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Items
Bellows Seal Valves

1/2 Inch (in) Pipe Size and 1500 Pressure Class Bellows Seal Globe Valve
Bellows Seal Valves

3/4 Inch (in) Pipe Size and 1500 Pressure Class Bellows Seal Globe Valve
Bellows Seal Valves

1 Inch (in) Pipe Size and 1500 Pressure Class Bellows Seal Globe Valve
Bellows Seal Valves

1 1/4 Inch (in) Pipe Size and 1500 Pressure Class Bellows Seal Globe Valve
Bellows Seal Valves

1 1/2 Inch (in) Pipe Size and 1500 Pressure Class Bellows Seal Globe Valve
Description N/A Packed valves require two different seals: a 360º seal on the stem and a 360º seal on the stuffing box. The Conval Bellows Seal Valve removes these two leak paths.

Conval Bellows Seal Valves are used when packed valves may not reliably contain light gases or hazardous system fluids. The multi-ply Inconel™ static bellows stem seal is more reliable in most applications than sliding stem seals.

Conval Bellows Seal Valves have two back-up stem seals, a graphite packing and a pressure actuated backseat to contain system fluids in the unlikely event of a Bellows rupture.

Meets all the requirements of MSS-SP117.
Brands N/A Conval
Pressure Class N/A 1500
Size Code N/A 6E N/A 6E N/A 6G N/A 6G N/A 8J
Pipe Size N/A 1/2 in15 mm N/A 3/4 in20 mm N/A 1 in25 mm N/A 1 1/4 in32 mm N/A 1 1/2 in40 mm
A N/A 6 1/8 in156 mm N/A 6 1/8 in156 mm N/A 6 1/8 in156 mm N/A 6 1/8 in156 mm N/A 7 1/4 in184 mm
B N/A 2 7/16 in62 mm N/A 2 7/16 in62 mm N/A 2 7/16 in62 mm N/A 2 7/16 in62 mm N/A 11/16 in68 mm
C N/A 3/8 in10 mm N/A 1/2 in13 mm N/A 1/2 in13 mm N/A 1/2 in13 mm N/A 1/2 in13 mm
D N/A 2 11/16 in68 mm N/A 2 11/16 in68 mm N/A 2 11/16 in68 mm N/A 2 11/16 in68 mm N/A 3 15/16 in100 mm
E N/A 0.86 in21.8 mm N/A 1.07 in27.2 mm N/A 1.335 in33.9 mm N/A 1.68 in42.7 mm N/A 1.92 in48.8 mm
F N/A 5/8 in16 mm N/A 5/8 in16 mm N/A 1 in25 mm N/A 1 in25 mm N/A 1 1/2 in38 mm
G N/A 11 7/8 in302 mm N/A 11 7/8 in302 mm N/A 11 7/8 in302 mm N/A 11 7/8 in302 mm N/A 16 5/16 in414 mm
H N/A 0.563 in14.3 mm N/A 0.563 in14.3 mm N/A 0.563 in14.3 mm N/A 0.563 in14.3 mm N/A 0.774 in19.7 mm
J N/A 8 in203 mm N/A 8 in203 mm N/A 8 in203 mm N/A 8 in203 mm N/A 10 in254 mm
Flow (Cv) N/A 7 N/A 7 N/A 14 N/A 14 N/A 31
Flow (Kv) N/A 6 N/A 6 N/A 12 N/A 12 N/A 27
Weight1 N/A 23 lb10 kg N/A 23 lb10 kg N/A 21 lb10 kg N/A 21 lb10 kg N/A 40 lb18 kg
Features N/A Bellow Seal
Note N/A BW dimensions supplied per customer requests.
  • 1 All weights are approximate for shipping purposes only.