Thread · ISO · Water
Cnpnji Plastic Pressure Relief Valve PTFE Membrane IP68 Screw Waterproof Breathable Air Vent Plug Cable Gland
US$ 0.19-0.21
/ Piece
50 Pieces (MOQ)
50 Pieces (MOQ)
Certifications
Detailed Photos
Product Parameters
Nylon Air Vent Plug
Main Component
Cap
PA66
Body
PA66/PC
Nut
PA66
Sealing Element
Insert
NBR ROHS3.0
Washer
NBR ROHS3.0
Permeable Membrane
e-PTFE
Gland Temperature
-40ºC ~ 100ºC , short time to 125º
- Zhejiang Mingguan Electric Co., Ltd.
-
5(5.0)
"Fast Delivery"Fast Delivery - Zhejiang, China
- ISO9001:2015
- Contact Now
Ordinary Temperature · Flange · Closed
Hydro Control Emergency Open Pressure Sustaining Pressure Relief Valve (GL500X)
US$ 25-300
/ Piece
1 Piece (MOQ)
1 Piece (MOQ)
Pressure Sustaining / Swift pressure relief/ Emergency Open Valve
MODEL NO.: GL500X
Product Description
Δ Pressure relief valve: This valve releases pressure from the pipeline when the pressure is higher than a preset data by the pilot. It keeps the pressure in pipeline safely below a ce
- ZHEJIANG MENCROWN VALVE CO., LTD.
-
- Zhejiang, China
- Contact Now
Adjustable · Open · Cast Iron
High Pressure Spring Loaded Safety Relief Valve
US$ 50-2000
/ Piece
1 Piece (MOQ)
1 Piece (MOQ)
Ref.No
Part Name
Sign of Materials
C
cs
C6
C9
CM
cc
CB
L
1
Body
WCB
WCB
WC6
WC9
WCB
WCB
WCB
LCB
2
Nozzle
304
316
316
316
Monel
H. C
H. B
304
3
Nozzle Ring
CF8M
CF8M
CF8M
CF8M
CF8M
CF8M
CF8M
CF8M
4
Set Screw
304
304
304
304
304
304
304
304
5
Disc
- Wenzhou Safety Import&Export Co., Ltd
-
- Zhejiang, China
- Contact Now
Welding · Adjustable · Spring
Widely Used Thermoplastic PVC Safety Pressure Relief Valve
US$ 9-56
/ Set
1 Set (MOQ)
1 Set (MOQ)
Product Description Our Safety Relief Valve is a critical safeguard for piping systems and equipment, engineered to automatically release excess pressure and prevent overpressure-related damage. The valve's primary role is to mitigate overpressure risks: When system pressure exceeds a preset thresho
CE · Adjustable · Water
API 526 Spring Loaded Flanged Pressure Relief Safety Valve
US$ 70-1688
/ Piece
1 Piece (MOQ)
1 Piece (MOQ)
API 526 Spring Loaded Flanged Pressure Relief Safety Valve
Performance:
The allowable tolerance of the set pressure: <+/-3% of the set pressure
Overpressure:<10% of the set pressure
Blowdown:<15% of the set pressure
Tightness: the valves have good seat tightness, conforms to API527
Feature
- Cixi Fly Pipe Equipment Co., Ltd.
-
- Zhejiang, China
- Others
- Contact Now
Gas · Ordinary Temperature · Open
Full or Low Lift Spring Loaded Bronz Pressure Safety Relief Valve
US$ 65
/ Piece
1 Piece (MOQ)
1 Piece (MOQ)
Full or Low Lift Spring Loaded Safety Relief Valve with Open or Close Bonnet Conform to API 520, ISO 4126
They are tested according to API 527, and marked as per MSS SP-25
1. Construction is as follows
- Full Lift or Low Lift
- For Steam
- Adjusting Set Pressure
- Closed Bonnet or Open Bo
- Vatac Valves Corp.
-
- Zhejiang, China
- Contact Now
Water · Adjustable · Open
Stainless Steel Sanitary Air Pressure Release Safety Relief Reducing Exhaust Regulating Valve (JN-SFT2110)
US$ 43-50
/ Piece
1 Piece (MOQ)
1 Piece (MOQ)
Stainless Steel Sanitary Air Pressure Release Safety Relief Reducing Exhaust Regulating Valve(JN-SFT2110)
A stainless steel sanitary safety valve is a pressure relief device designed for sanitary systems in food, pharmaceutical, and biotech industries. It is made from high-quality stainless stee
Flange · ISO · Gas
API 526 Spring Loaded Flanged Carbon Steel Pressure Relief Control Safety Valve Price
US$ 70.3
/ Piece
20 Pieces (MOQ)
20 Pieces (MOQ)
Product Description
A Safety Valve is a critical device used to protect equipment, systems, and people from overpressure by automatically releasing fluid (gas or liquid) when pressure exceeds a preset limit. It is a fail-safe mechanism widely used in various industries.
Key Components
Body: House
- Keke Group Co., Ltd.
-
- Zhejiang, China
- Contact Now
Gas · Non-Ajustable · Semi-Closed
Nai-Lok 1/2 Male NPT X Female NPT Relief Valves Compression Tube Ends Stainless Steel 316 Instrument Psv Pressure Safety Valve Cracking Pressure 2500psi
US$ 51.5-82.6
/ Piece
2 Pieces (MOQ)
2 Pieces (MOQ)
Product Description
The NAI-LOK Relief Valve is a high-performance safety valve designed for applications requiring precise pressure control in confined spaces. Its compact design, external adjustability, and robust construction make it ideal for industries such as oil & gas, chemical processing, a
- Jipai Fluid Control Technology (Jiangsu) Co., ...
-
- Jiangsu, China
- Contact Now
Gas · Adjustable · Open
Hikelok 316 Stainless Steel Proportional Spring Adjustable Relief Valve Pressure Safety Valve
US$ 60-150
/ Piece
1 Piece (MOQ)
1 Piece (MOQ)
Product Description
Product Name
Proportional Relief Valves - RV2 Series
Material
316 S.S.,316L S.S.
Port Size
1/8" to 1/4",6/8/10/12mm.
Orifice
0.19"(4.8mm)0.25in(6.4mm)
Set pressure
from 10 to 225 psig(0.68 to 15.5 bar).
Working temperature
from -10°F to 300°F( -23ºC to
- Sailuoke Fluid Equipment Inc.
-
- Sichuan, China
- Contact Now
-
What materials are commonly used in manufacturing Pressure Relief Valves?
Pressure Relief Valves are typically manufactured using materials such as stainless steel, brass, or carbon steel. Manufacturers ensure these materials meet strict quality standards to ensure the valve's effectiveness and longevity.
-
How can I find trustworthy suppliers of Pressure Relief Valves in China?
To find reputable suppliers of Pressure Relief Valves in China, search online platforms, attend industry trade shows, and engage with industry-specific directories. Verify supplier credentials, request product samples, and establish reliability assurance before collaborating.
-
What are the advantages of procuring Pressure Relief Valves wholesale?
Procuring Pressure Relief Valves wholesale offers cost savings, bulk quantities, and consistent product quality. Wholesale purchases often come with discounts and customization options, ensuring a steady supply of high-quality Pressure Relief Valves from reliable suppliers.
Thread · Adjustable · Stainless Steel
Swagelok Type 1/4 1/2 in. Od NPT Bsp 5 to 500 Psi Set Pressure Stainless Steel Pressure Relief Valve
US$ 60-150
/ Piece
1 Piece (MOQ)
1 Piece (MOQ)
Product Name
Hikelok® Proportional Relief Valves RV4
Working Temperature
-20 to 400 F -29 to 204 C
Set Pressure
5 to 550 Psi 0.34 to 37.9 Bar
Inlet Type
FNPT NPT FBT MBT FMS MS FBP MBP F M
Inlet Size
1/8 in to 3/4 in and 6 mm to 12 mm
Orifice Size
0.53 in 5.8 mm
Seal Material
FKM /
- Sailuoke Fluid Equipment Inc.
-
- Sichuan, China
- Contact Now
Water · Adjustable · Closed
Brass Pressure Relief Valve Safety Temperature Relief Valve
US$ 5.5
/ Piece
1000 Pieces (MOQ)
1000 Pieces (MOQ)
Product Description:
1. Material: Forged Brass (CW617N CW602N C46500 C37000)
2. Size: 1/2" 3/4"
3. Set Pressure: 150PSI
4. Thread: NPT
5. Application: Pressure safety relief valves
6. Installation: Vertically Or Horizontal Installation
7. Connection standard: ANSI/ASME STANDARD B1.20.1
8.
Closed · Ordinary Temperature · CCC
Full Nozzle Closed Bonnet Bellows Pressure Balanced Type Safety Relief Valve
US$ 1
/ Piece
1 Piece (MOQ)
1 Piece (MOQ)
Full Nozzle Closed Bonnet Bellows Pressure Balanced Type Safety Relief Valve
Product Description
KunkleA28H type are used for the equipment and pipeline of water,air,steam etc.Medium what the working temperature are less than 200°C.A27Y type are used for the equipment and pipelines of the qual
- Goole Valve technology Co., Ltd.
-
- Zhejiang, China
- Contact Now
Gas · Non-Ajustable · Semi-Closed
High Pressure Manual Safety Valve Stainless Steel 316 Gas Relief Valve for Oil and Gas Standard Control Structure
US$ 96
/ Piece
2 Pieces (MOQ)
2 Pieces (MOQ)
Product Description
Features
Compact body for installation in samll space
Cracking pressure adjustaple externally
Lack wire capacity to maintain pressure relief setting
100% factory tested crack and reseal performance
Operating temperature range: -10°F to 400F(-23°C to 204°C)
- Jipai Fluid Control Technology (Jiangsu) Co., ...
-
- Jiangsu, China
- Contact Now
Water · Adjustable · Closed
Brass Safety Valve for Solar Water Heater Temperature and Pressure Relief Valve
US$ 5.5
/ Piece
1000 Pieces (MOQ)
1000 Pieces (MOQ)
Product Description:
1. Material: Forged Brass (CW617N CW602N C46500 C37000)
2. Size: 1/2" 3/4"
3. Set Pressure: 150PSI
4. Thread: NPT
5. Application: Pressure safety relief valves
6. Installation: Vertically Or Horizontal Installation
7. Connection standard: ANSI/ASME STANDARD B1.20.1
8.
Ordinary Temperature · Flange · Closed
Wear-Resistant Support Customization Piston-Type Pressure Relief Valve for DN25 with Adjustable Pressure, Flange, and Closed Structure
US$ 3091-8243
/ Piece
1 Piece (MOQ)
1 Piece (MOQ)
Product Description
Piston-type Pressure Relief Valve
Product Name
Piston-type Pressure Relief Valve
Nominal Diameter
DN500~DN800
Nominal Pressure
1.0~1.6Mpa
Applicable Temperature
0~120°C
Applicable Media
Water,Oil,Gas,etc
Materials
Gray Cast Iron,Ductile Iron,Cast Iron
Please con
- Top Valves Manufacture(Nantong) Co., Ltd.
-
- Jiangsu, China
- ISO9001:2015, ISO45001:2018, ISO14001
- Contact Now
Water · Adjustable · Closed
DN20 NPT Lead-Free Water Heater Safety Valve Brass Pressure Relief Valve
US$ 5.5
/ Piece
1000 Pieces (MOQ)
1000 Pieces (MOQ)
Product Description:
1. Material: Forged Brass (CW617N CW602N C46500 C37000)
2. Size: 1/2" 3/4"
3. Set Pressure: 150PSI
4. Thread: NPT
5. Application: Pressure safety relief valves
6. Installation: Vertically Or Horizontal Installation
7. Connection standard: ANSI/ASME STANDARD B1.20.1
8.
CE · Adjustable · Gas
Brass Cryogenic Industrial LNG Safety Relief Pressure 40bar Valve
US$ 11.5-13
/ Piece
1 Piece (MOQ)
1 Piece (MOQ)
Type No.
DA-08A2
Product Name
Cryogenic safety relief valve
Suitable Media
LNG LO2 LN2 CO2
PN(MPa)
4.0MPa
Body
HPb59-1
Spring
S30210
Main sealing
PCTFE
Design temperature
-196°C~+60°C
Q:Are you a manufacturer or a trading company?
A:We are a manufacturer.
Q:What is the
Low Temperature · Thread · Stainless Steel
Dah25c Cryogenic Safety Relief Valve Pressure Control Low Temperature
US$ 53-55
/ Piece
1 Piece (MOQ)
1 Piece (MOQ)
Product Description
Product name
Cryogenic relief valve
Type No.
DAH-25C
PN(MPa)
4
DN(mm)
25
Suitable medium
O2/N2/NG/CO2/Ar
Standard
GB/T12241, BG/T12242, GB/T12243
Connection type
Thread
Suitable temp
-196ºC~+80ºC
Body cover spring
stainless steel
Sealing mate
Water · Clamp · Adjustable
Food Grade Sanitary Stainless Steel Welded/Clamped Air Pressure Relief Valve Safety Valve with Scale
US$ 20-90
/ Set
10 Sets (MOQ)
10 Sets (MOQ)
Product Name Food Grade Sanitary Stainless Steel Welded/Clamped Air Pressure Relief Valve Safety Valve with Scale Size 1"-2",DN25-DN50 Material SS304,316L Sealing Material NBR,EPDM,FPM Surface Treatment Ra ≤ 0.8 μm Connection Welding,Clamped,Threaded Standard 3A,DIN,SMS,ISO/IDF,RJT Application Dairy
- Quzhou KingGo Machinery Co., Ltd.
-
- Zhejiang, China
- Contact Now
Gas · Non-Ajustable · Semi-Closed
Stainless Steel 316 Adjustable 5000psi High Pressure Relief Valve for High Pressure System
US$ 58.5-85.8
/ Piece
2 Pieces (MOQ)
2 Pieces (MOQ)
Product Description
NAI-LOK® RV Series Proportional Relief Valves - Reliable Overpressure Protection
NAI-LOK® RV Series proportional relief valves provide simple, reliable overpressure protection for industrial applications. Designed to open gradually as pressure increases, these valves he
- Jipai Fluid Control Technology (Jiangsu) Co., ...
-
- Jiangsu, China
- Contact Now
Welding · Adjustable · Spring
China High-Efficiency Pressure-Relief Safety Valve Thermoplastic Valve
US$ 8.9-56
/ Set
1 Set (MOQ)
1 Set (MOQ)
Product Description Our Safety Relief Valve is a critical safeguard for piping systems and equipment, engineered to automatically release excess pressure and prevent overpressure-related damage. The valve's primary role is to mitigate overpressure risks: When system pressure exceeds a preset thresho
Water · Thread · Adjustable
DN15 DN100 Pressure Brass Pressure Reducing/ Relief Valve with Gauge for Pipeline for Water
US$ 0.5-15
/ Piece
300 Pieces (MOQ)
300 Pieces (MOQ)
1/2''-2'' Brass pressure reducing Valve Structure:
Size
B
D
H
L
1/2FF
15
19
62
128
3/4"FF
20
24
74
128
1"FF
25
31
90
158
Why Choose Us
We are factory and International trading company
Imported Advanced Machineries manufacture high- performance products.
3. Mo
Adjustable · Open · Cast Iron
Spring Loaded Safety Valve Pressure Relief Valve
US$ 50-2000
/ Piece
1 Piece (MOQ)
1 Piece (MOQ)
Ref.No
Part Name
Sign of Materials
C
cs
C6
C9
CM
cc
CB
L
1
Body
WCB
WCB
WC6
WC9
WCB
WCB
WCB
LCB
2
Nozzle
304
316
316
316
Monel
H. C
H. B
304
3
Nozzle Ring
CF8M
CF8M
CF8M
CF8M
CF8M
CF8M
CF8M
CF8M
4
Set Screw
304
304
304
304
304
304
304
304
5
Disc
- Wenzhou Safety Import&Export Co., Ltd
-
- Zhejiang, China
- Contact Now
Spring · CE · Ordinary Temperature
Food Grade Stainless Steel Sanitary Safety Pressure Relief Valve Full Lift Open Safety Valves Steam Boiler Safety Valve
US$ 69
/ Piece
1 Piece (MOQ)
1 Piece (MOQ)
Product Description
The safety valve is suitable for equipment or pipelines with steam, air and other media whose working temperature is less than 350 degrees. When the pressure of the equipment or pipeline exceeds the allowable value, the valve will automatically open and discharge the full amou
- Henan Taiguo Boiler Group Co., Ltd
-
- Henan, China
- Contact Now
Spring · Clamp · ISO
Air&Vacuum Relief Valve with Adjust Pressure Set
US$ 10
/ Piece
1 Piece (MOQ)
1 Piece (MOQ)
Product Name:
Tank Pressure and Vacuum Relief Valve/Vent VAV03 Series
Material:
SS304
Adjustable Pressure
15psi - 45psi
Size:
1" - 2.5" or DN25 - DN65
Connection Way:
Clamp
Media:
Water
Temperature of Media:
Normal Temperature
Packing Details:
Each Pressure Vacuum Relief Valve is cov
- WENZHOU QIMING STAINLESS CO., LTD.
-
- Zhejiang, China
- Contact Now
CE · Adjustable · Gas
Cold Environment LNG Low Temperature Pressure Safety Relief Valve
US$ 77.9-80
/ Piece
1 Piece (MOQ)
1 Piece (MOQ)
Type No.
DAH-15
Product Name
Cryogenic safety relief valve
Suitable Media
LNG LO2 LN2 LAr CO2
PN(MPa)
5.0MPa
Body
CF8
Spring
S30210
Main sealing
PTFE+MoS2
Design temperature
-196°C~+80°C
Q:Are you a manufacturer or a trading company?
A:We are a manufacturer.
Q:What is t
Gas · Thread · Adjustable
High Purity Media Starting Pressure: 25~500psig 1/4inch Pressure Relief Valve
US$ 26
/ Piece
1 Piece (MOQ)
1 Piece (MOQ)
Product Parameters
Opening pressure
25~500psig(1.7~34.5bar)
Range of set pressure
10~25psig,25~100psig,100~250psig,250~500psig
Working temperature
-23ºC~+148ºC(-10ºF~+300ºF)
Inlet /outlet port specification
Inlet 1/4inch NPT male,outlet 1/4inch NPT female
Clean process
- Hunan Wofly Technology Co., Limited
-
5(5.0)
"Fast Delivery"Fast Delivery - Hunan, China
- ISO9001:2015
- Contact Now
Water · Adjustable · Closed
Brass Valve Brass Relief Valve Certification OEM/ODM Brass Pressure Reducing Valves
US$ 2-30
/ Piece
300 Pieces (MOQ)
300 Pieces (MOQ)
About Safety Valve:
Brass Valve Brass Relief Valve Certification OEM/ODM Brass Pressure Reducing Valves
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A safety valve is a valve that acts as a fail-
Spring · CE · Ordinary Temperature
Adjustable Double Flange Safety Valve, Pressure Relief Valve
1 Piece (MOQ)
Adjustable Double Flange Spring Micro Opening Safety Valve Over Pressure Protecting Device for Gas
Meterial of main parts
Part name
Meterial
Body
WCB; CF8; CF8M;
Adjusting ring
SS416 / SS304
Allen bolits
Carbonization process
Spring
50CrVA
Bonnect
Gray iron,ductile iron,cast steel
St
- Like Valve (Tianjin) Co., Ltd.
-
- Tianjin, China
- Contact Now
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