Explosion Isolation Flap Valve

Product Introduction:

The explosion-proof flap valve is a pressure differential self-operated dust explosion isolation valve that does not require external electrical equipment. It is safe and reliable and can effectively and automatically prevent the spread of flammable dust explosions from one area to other areas, thereby eliminating the possibility of secondary explosions. The flap can be manually reset and reused

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Product Advantages

Our flap is made of 304 stainless steel die-casting, which has high strength and no deformation;

Ruizhi explosion-proof valve is a standard valve component, well-made

Electronic position indicator is optional

Implementation of EU standard EN16447-2014

CE certified

Technical Performance Indicators

Items	Parameters
Size	DN100~DN200	DN250~DN600	DN600+~DN1000
Installation distance	2~7meters	3~7.5meters	DNx5~DNx10
Applicable dust	ST1 and ST2	ST1 and ST2	ST1
Pred,max	0.04MPa
Minimum pressure loss	100Pa~500Pa
Explosion resistance	0.082MPa
Temperature range	-30℃~135℃
Humidity range	≤80%
Applicable process	Negative pressure process, oxygen content not higher than the oxygen content in the air (21%)
Wind speed range in the duct	0~30m/s
Installation methods	Horizontal installation
Material	Carbon steel and stainless steel
The dust concentration in the pipeline should not be higher than 200g/m³

Technical Parameters Specifications

Product Specifications	Flange inner diameter d(mm)	Flange outer diameter D(mm)	Hole center distance φK(mm)	Flange hole n-φL	Length L(mm)	Width W(mm)	Height H(mm)
BD-FT2RZ-150	150	250	210	8-14	450	350	300
BD-FT2RZ-200	200	300	260	8-14	500	400	350
BD-FT2RZ-300	300	400	360	12-14	600	500	450
BD-FT2RZ-400	400	500	460	16-14	700	600	550
BD-FT2RZ-500	500	600	560	20-14	800	700	650
BD-FT2RZ-600	600	700	660	24-14	900	800	750
BD-FT2RZ-700	700	800	760	28-14	1000	900	850
BD-FT2RZ-800	800	900	860	32-14	1100	1000	950
BD-FT2RZ-900	900	1000	960	36-14	1200	1100	1050
BD-FT2RZ-1000	1000	1100	1060	40-14	1300	1200	1150

CE Certified

Application Scenario

Core Products

Aluminum Powder Classifier Milling System

Aluminum Powder Classifier Milling system is an innovative device that integrates dry milling and dynamic classification of materials.

Ball Mill

Ball mill is the key equipment for crushing materials after they are broken. The cylinder is generally made of welded steel plates, closed at both ends with end covers, and the inner wall of the cylinder is inlaid with wear-resistant lining to prevent the cylinder from wear.

Explosion Isolation Flap Valve

The explosion-proof flap valve is a pressure differential self-operated dust explosion isolation valve that does not require external electrical equipment.

FAQ

Q1 What qualifications and certifications does your company have?

Our company is ISO9001:2015 certified, with CE certified dust explosion-proof equipment. Some products comply with EN standards. Ruizhi is also a member of the Fire and Explosion Prevention Working Group of the National Committee for Machinery Safety Standardization.

Q2 Is there independent intellectual property rights and third-party testing?

Yes. We own several patents in explosion-proof systems and can provide third-party test reports such as CNAS and CE.

Q3 How long is the delivery cycle?

Standard equipment delivery is 5–9 weeks. Spare parts are usually in stock for fast shipping.

Q4 How to ensure packaging and transportation?

All products are packed in moisture-proof, anti-static, shock-resistant wooden cases, suitable for sea and air shipping.

Q5 How long is the warranty period?

We provide remote support, and operator training through manuals and video tutorials.

Service Warranty

If there is any problem with the product quality, we will replace it free of charge. The warranty period is 12 months, and we will provide free remote technical guidance.

Work with Ruizhi – Global Dust Safety Partner

Get in touch with our team for customized solutions, technical support and reliable explosion-proof equipment.

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Hebei Ruizhi Nano technology Co., Ltd.--30 years of innovation in explosion-proof milling and dust safety equipment, trusted by industries worldwide.