Hoonsun Stainless Steel Vent Plug

Material: Stainless steel 304

Color: Metallic color

Temperature resistance: -40ยฐC ~ +150C

Moisture permeability: >5000g/24H.M2

Resistant to fine water pressure:โ‰ฅ100mbar for30min

Product characteristics: Dustproof, hydrophobic, breathable, heat dissipation, oil-proof

Alr permeability: โ‰ฅ1500ml/min/@70mbar

Inquiry Now >

VIDEO

video video

Product Description

Our stainless steel vent plug is designed to provide reliable pressure and vacuum relief for tanks, vessels and piping systems. Constructed from high-quality stainless steel for superior corrosion resistance and durability, it ensures safe and efficient โ€œbreathingโ€ of the systemโ€”letting air in or out as required to maintain pressure equilibrium, prevent tank deformation and protect equipment integrity.

Key Features
1๏ผŒBody material: 304 or 316L stainless steel (depending on model) offering excellent resistance to harsh chemical and environmental conditions.
2๏ผŒPressure/Vacuum relief: Automatically opens to vent excess positive pressure, and/or draws in air when vacuum occurs โ€” thereby maintaining near atmospheric internal pressure.
3๏ผŒWide operating temperature range and durable sealing materials: Seals made of PTFE, EPDM or Viton are available depending on application. 4๏ผŒVarious connection sizes and types: Threaded, tri-clamp, flange or sanitary connections to suit different tank or vessel configurations.
5๏ผŒHygienic / sterile versions available: For food, beverage or pharmaceutical applications, with polished internal surfaces and sanitary fittings.
6๏ผŒCompact and reliable design: Minimal maintenance, simple installation (typically mounted at top of tank/vessel) and stable performance over time.

Technical Specifications (typical)
1๏ผŒMaterials: 304 SS or 316L SS for body; sealing components PTFE/Viton/EPDM.
2๏ผŒPressure relief range: e.g., +0.9 PSI for vacuum break, +1 PSI for positive pressure (factory pre-set for hygienic version)
3๏ผŒTemperature range: approx. โ€“10 ยฐC to +140 ยฐC (14 ยฐF to 285 ยฐF) for hygienic model.
4๏ผŒConnection sizes: 1.5โ€ณโ€“3โ€ณ OD in hygienic version; other threaded/flanged sizes available.
5๏ผŒFinish: Internal / external mirror polish (for sanitary types) with Ra < 0.6 ยตm for ID.

Technical Parameter

<tdโ‰ฅ2300ml/mln/@70mbar1019.52422HX-BF.G2/855<tdG3/4

Item Breathability Thread length
GL
Overall length
H
Thread O.D. Spanner Size Code
M4ร—0.B 200ml/mln/@70mbar 6 13 4 8 HX-BF.M4SS
M5ร—0.B 300m/min/@70mbar 7 15 5 10 HX-BF.M5SS
M6ร—1.0 300ml/mln/@70mbar 7 15 6 10 HX-BF.M6SS
M8ร—1.0 900ml/mln/@70mbar 7 16 8 14 HX-BF.M8SS
M8ร—1.25 โ‰ฅ900ml/mln/@70mbar 7 16 8 14 HX-BF.M&x1.25SS
M10ร—1.0 1500mL/mln/@70m bar 8 16 10 17 HX-BF.M105S
M10ร—1.5 1500mL/mln/@70m bar 8 16 10 17 HX-BFM10x1.5SS
M12ร—1.5 โ‰ฅ1500mL/mln/@70m bar 6 14 12 17 HX-BF.M12 L65S
M12ร—1.5 1500ml/mln/@70m bar 7 15 12 17 HX-BFM12L75S
M12ร—1.5 โ‰ฅ1500mL/mln/@70m bar 10 18 12 17 HX-BF.M12 L10SS
M12ร—1.75 1500mL/mln/@70m bar 7 15 12 17 HX-BF.M12x1.755S
M12ร—1.75 โ‰ฅ1500mL/mln/@70m bar 10 18 12 17 HX-BF.M12X1.755S
M16ร—1.5 2300mL/mln/@70m bar 10 19.5 16 22 HX-BF.M165S
M20ร—1.5 2300mLmln/@70m bar 10 19.5 20 22 HX-BF.M205S
M22ร—1.5 2300mL/mln/@70m bar 10 23 22 28 HX-BF.M225S
M24ร—1.5 โ‰ฅ2500ml/mln/@70m bar 10 21 24 30 HX-BF.M245S
M25ร—1.5 2500m/mln/@70m bar 10 21 25 30 HX-BF.M255S
M40ร—1.5 2500ml/mln/@70m bar 15 30 40 45 HX-BF.M405S
G1/8 1500mLmln/@70m bar 8 16 18.5 17 HX-BF.G1/85S
G1/4 1500m/mln/@70m bar 7 15 18.5 17 HX-BF.G1/45S
G3/8 โ‰ฅ2300mL/mln/@70m bar 10 19.5 24 22 HX-BF.G1/255
G1/2 3000ml/mln/@70mbar 10 23 35.5 32 HK-BF.G2/45S
NPTI/8 1500mL/mln/@70m bar 8 16 18.5 17 HX-BF.NPTI/8SS
NPT14 โ‰ฅ1500m/mln/@70m bar 7 15 18.5 17 HX-BF.NPTI/45S
NPT2/ๅŽ 2300m/mln/@70m bar 10 19.5 24 22 HX-BF.NPT3/8SS
NPTI/2 2300ml/mln/@70mbar 10 19.5 24 22 HK-BF.NPTI/255
Other styles support callconsuItatlon
Item Breathability Thread length
GL
Overall length
H
Thread O.D. Spanner Size Code
M5ร—08 โ‰ฅ200ml/mln/@7ombar 5 9 5 8 HX-BF.M5-T SS
M6ร—10 โ‰ฅ200ml/mln/@7ombar 5 9 6 8 HX-BF.M6-TSS
MBร—1.25 โ‰ฅ500ml/mln/@7ombar 7 12 8 12 HX-BF.MBx1.25-T SS
M10ร—1.5 >500ml/mln/@70mbar B 13 10 14 HX-BF.M10x1.5-T SS
M12ร—1.5 1500ml/mln/@70mbar B 13 12 16 HX-BF.M12-TSS
M16ร—1.5 โ‰ฅ1700ml/mln/@70mbar 10 15 16 20 HK-BF.M16-TSS
M20ร—1.5 โ‰ฅ2300ml/mln/@70mbar 10 15 20 24 HX-BF.M20-TSS
Other styles support call consultation

stainless steel vent plug Availablestainless steel vent plug Availablestainless steel vent plug featuresmetal vent plug PARAMETER

Schematic Decomposition

Each structure is meticulous and well-protected, which can effectively prevent water leakage and displacement.

Fitting Material: Stainless steel 304 stainless steel vent plug-Parameter
Color: Metallic color
Temperature resistance: -40โ„ƒ~+150โ„ƒ
Moisture permeability: >5000g/24H.M2
Resistant to fine water pressure: โ‰ฅ100mbar for 30min
Product characteristics: Dustproof, hydrophobic, breathable, heat
dissipation, oilproof
Airpermeability: โ‰ฅ1500ml/min/@70mbar

 

Used in Charging Piles

It is widely used in mechanical automation, new energy vehicles, wind power energy storage, electronic communications, marine and aviation, nuclear power plants, and various other scenarios

rail transitwind energy storagemechanical automation

Excellent Waterproof Sealing

The nickel-plated brass ventilation valve resists corrosion and high temperatures. Its hydrophobic, breathable membrane ensures breathability and waterproofing, blocking liquids and dust while balancing pressure differences to prevent seal failure.

stainless steel vent plug ip68

Protection Safe and Reliable

It can be dust-proof, salt-proof, acid-alkaline, alcohol-grease and general solvent, suitable for outdoor harsh environments Plug and play, convenient and fast.

stainless steel vent plug Protection Safe

ABOUT HONGXIANG

The Waterproofing Industry Adheres to Innovation

ABOUT HONGXIANG

Zhejiang Hongxiang Connector Co., Ltd. was founded in 2006 with a registered capital of 5 million yuan. And in 2018, it is a high-tech company which integrates research and development, production and sales. There are more than 100 employees in the company, and it is equipped with a professional sales team and a workshop management team.

The company is mainly aimed at the global sales of cable connectors and accessories for various materials. After more than nineteen years of development, it has provided thousands of customers with a high-quality product experience. We always pursued the most cost-effective products.

In 2024, Hongxiang Connector significantly broadened its business scope by introducing a new product line, the CFM (Cable and Fibre Management) solutions. This strategic expansion aims to enhance the efficiency of wire harness crimping processes for clients while simultaneously reducing their production costs.

The idea of the company is โ€œcustomer first: We solve the problems for customers in time, due to the customer is the parent of food and clothing. Purse quality: only imperfect products, no critical customers. Be optimistic and positive: never give up when encountering difficulties and setbacks, and constantly motivate ourselves.โ€ This mission is keeping the cable connector industry. We have established a good reputation in the industry and won the praise of all customers.

Factory Display

Factory DisplayFactory DisplayFactory DisplayFactory Display

workshopour customersour certificateour certificateour certificate packging and shippingpackging and shipping

Download Center

Cable Gland Manufacturer Quote

+86-577-62628623