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Model 931

Flame Arrester Model 931
Model 931

Design
Tube protection against deflagration
Tube protection against detonation
Protection against continuous fire

Approval
ECtype examination certificate based on to directive 94/9/EC, according to ATEX 95 and ISO 16852

Protection
Gas/air or steam/air mixtures of the following explosion groups:
– I (methane) NSW ≥ 1.14 mm
– IIA (D) NSW ≥ 0.90 mm

Pipe Sizes
1⁄2", 3⁄4", 1", 11⁄4"

Connection Standards
Rp according to ISO 71 (DIN 2999)
BSP according to BS 21
NPTF according to ANSI B1.20.3

Materials
Strip protection: Stainless Steel
Body/cap: Stainless Steel, Carbon Steel

Coating
Optional

Download the Model 931(-T) brochure


Model 931A

Flame Arrester Model 931A
Model 931A

Design
Tube protection against deflagration
Tube protection against detonation
Protection against continuous fire

Approval
ECtype examination certificate based on to directive 94/9/EC, according to ATEX 95 and ISO 16852

Protection
Gas/air or steam/air mixtures of the following explosion groups:
– I (methane) NSW ≥ 1.14 mm
– IIA (D) NSW ≥ 0.90 mm

Pipe Sizes
DN15, DN20, DN25, DN32 1/2", 3/4", 1", 11⁄4"

Connection Standards
DIN 2501 PN10
ANSI B16.5 – 150 RF

Materials
Strip protection: Stainless Steel
Body/cap: Stainless Steel, Carbon Steel

Coating
Optional

Download the Model 931-A(-T) brochure


Model 931B

Flame Arrester Model 931A
Model 931B

Design
Tube protection against deflagration
Tube protection against detonation

Approval
ECtype examination certificate based on to directive 94/9/EC, according to ATEX 95 and ISO 16852

Protection
Gas/air or steam/air mixtures of the following explosion groups:
– I (methane) NSW ≥ 1.14 mm
– IIA (D) NSW ≥ 0.90 mm
– IIB3 (C) NSW ≥ 0.65 mm
– IIC (B) NSW ≥ 0.50 mm

Pipe Sizes
1/8", 1/4", 3/8", 1/2"

Connection Standards
Rp according to ISO 71 (DIN 2999)
BSP according to BS 21
NPTF according to ANSI B1.20.3

Materials
Strip protection: Stainless Steel, Special Alloys
Body/cap: Stainless Steel, Special Alloys

Download the Model 931-B brochure


Model 931T

Flame Arrester Model 931T
Model 931T

Design
Tube protection against deflagration

Approval
ECtype examination certificate based on to directive 94/9/EC, according to ATEX 95 and ISO 16852

Protection
Gas/air or steam/air mixtures of the following explosion groups:
– I (methane) NSW ≥ 1.14 mm
– IIA (D) NSW ≥ 0.90 mm

Pipe Sizes
1 1/2“

Connection Standards
Rp according to ISO 71 (DIN 2999)
BSP according to BS 21
NPTF according to ANSI B1.20.3

Materials
Strip protection: Stainless Steel
Body/cap: Carbon Steel, Stainless Steel

Temperature Sensor
Resistance thermometer with ignition protection type
– Inherently safe (E Ex i)
– Pressureresistant enclosure (E Ex d)

Download the Model 931-T brochure


Model 931AT

Flame Arrester Model 931AT
Model 931AT

Design
Tube protection against deflagration

Approval
ECtype examination certificate based on to directive 94/9/EC, according to ATEX 95 and ISO 16852

Protection
Gas/air or steam/air mixtures of the following explosion groups:
– I (methane) NSW ≥ 1.14 mm
– IIA (D) NSW ≥ 0.90 mm

Pipe Sizes
DN40, 1 1/2“

Connection Standards
DIN 2501 PN10
ANSI B16.5 – 150 RF

Materials
Strip protection: Stainless Steel
Body/cap: Carbon Steel, Stainless Steel

Temperature Sensor
Resistance thermometer with ignition protection type
– Inherently safe (E Ex i)
– Pressureresistant enclosure (E Ex d)

Download the Model 931-AT brochure