Detonation flame arrestor including a spiral wound wedge wire screen for gases having a low MESG

A detonation flame arrestor canister supported within an external housing;

• comprising
• an inner member including a first end, a second end, and a surface;
• said second end of said inner member is closed;
• an outer member including a first end, a second end, and an surface;
• said outer member being larger than said inner member such that said inner member is capable of insertion into said outer member wherein a space is formed between said inner member and said outer member when said inner member is inserted and supported in said outer member;
• the space between said first end of said outer member and said first end of said inner member is closed;
• said second end of said outer member is closed;
• at least a portion of said surface of said outer member is defined by a spiral wound screen;
• at least a portion of said surface of said inner member is perforated to allow a gas to pass through said perforated portion;
• a fill media contained in said space formed between said inner member and said outer member such that said fill media is retained in said space by said spiral wound screen defining said surface of said outer member and said perforated portion defining said surface of said inner member.

A detonation flame arrestor canister supported within an external housing;

• comprising:
• an inner member including a first end, a second end, and a surface;
• said second end of said inner member is closed by a domed-shaped cap;
• an outer member including a first end, a second end, and a surface;
• said outer member being larger than said inner member such that said inner member is capable of insertion into said outer member wherein a space is formed between said inner member and said outer member when said inner member is inserted and supported in said outer member;
• the space between said first end of said outer member and said first end of said inner member is closed;
• said second end of said outer member is closed by a domed-shaped cap;
• at least a portion of said surface of said outer member is defined by a wedge wire screen;
• at least a portion of said surface of said inner member is defined by a wedge wire screen;
• a fill media contained in said space formed between said inner member and said outer member such that said fill media is retained in said space by and between said screen defining said surface of said outer member and said screen defining said surface of said inner member.