Products Description
- This is a proportional safety relief valve. It sets the opening pressure of the valve through the driving range spring and is used for overpressure protection. The valve is normally in a closed state. When the system pressure reaches the set value, it opens. When the system pressure drops below the set value, it closes again. The valve core has achieved higher surface smoothness and structural strength after heat treatment, enabling the valve to exhibit more excellent performance in resisting wear, contaminants in the fluid, and service life.
- Suitable for industries such as petroleum, chemical engineering, food, ships, metallurgy, energy, biopharmaceuticals, analytical instruments, laboratories, semiconductors, etc. It can be interchanged with international brands, with complete specifications and can be customized non-standardly.
- Material: SS304, SS316, SS316L and other special materials
Products Specification

|
Size |
Connection Thread |
A |
M |
N |
W |
H |
|
1/4'' |
Female-Female NPT/BSPP/BSPT |
37.5 |
35 |
10.8 |
19 |
66.5 |
|
3/8'' |
37.5 |
35 |
||||
|
1/2'' |
39.7 |
36.2 |
Products Applications
• Pressure gauge installation systems
• HVAC and heating systems
• Hydraulic and pneumatic systems
• Industrial instrumentation
• Oil, gas, and chemical industries
Our Service
1. 12 months warranty:
● Great quality products
● We stand behind the quality of our products 100%
● All of our items come with a warranty to give you a peace of mind.
● New Guaranteed: All of our items are in new condition in OEM or Original packing.
2. Accept All Payment Methods:
● We usually accept T/T (wire transfer), Western Union, or Paypal.
● Trade Currency: USD or RMB.
● Payment TT 30% deposit in advance, 70% balance paid before shipment.
● (Sample order) T/T / Western union 100% at sight.
3. Strong Package:
Our package method is in perfect condition, or according customized.
4. Fast delivery:
● Shipment term: CIF/CFR/FOB Ningbo/Shanghai China, China.
● Shipment date: shortly if in stocks, 7-20 days after receiving the deposit if bulk orders.
● Shipment way: we will ship your items by sea, by air, or by express (DHL, UPS, FedEx, TNT, EMS).
5. After-sales service:
● Terrific After-Sales Service: 24 Hours Around The Clock And 12 Months Warranty.
● Life-Long Maintenance Service For The Products.
Why Choose Us
1.Stable quality with strict inspection standards
2.Rich experience in industrial valve supply
3.OEM & customized solutions available
4.Fast delivery and reliable service
FAQ
1. Are you a manufacturer or trading company?
We are a professional manufacturer specializing in stainless steel and brass valves and fittings, with strong OEM capability for global markets
2. What is your MOQ?
Standard products: Low MOQ, trial orders supported
Customized products: Depends on design
We support small orders for first cooperation.
3. Can you produce according to drawings or samples?
Yes, we support OEM & custom production.
We can develop molds based on your samples, especially for 1-piece special fittings.
4. What materials do you supply?
Stainless Steel: SS304 / SS316
Brass: HPb59-1 / HPb59-3 /HPb58-3/Lead-free brass
Material test reports (MTC) are available if needed.
5. What is your pressure rating?
Our products are suitable for:
Medium to high pressure applications
Some grease fittings can exceed 10,000 PSI
Exact pressure depends on product type and design.
6. What is your delivery time?
Stock / standard items: 7–15 days
OEM / customized: 20–35 days
Fast production can be arranged for urgent orders.
Stable customers can negotiate better terms.
7. What markets do you mainly export to?
We have rich experience in:
USA
Europe
Middle East
We are familiar with their standards and quality requirements.
8. How do you ensure quality?
100% inspection before shipment
Thread gauge inspection
Pressure / sealing test (if required)
Third-party inspection is acceptable.
9. What thread standards do you support?
NPT (American standard)
BSPT / BSPP (European standard)
We can help confirm thread compatibility.
10. What is your packaging?
Standard export cartons + pallets
Anti-rust protection
Custom packaging & logo marking available.
11. Can you offer competitive pricing?
Yes - we offer very competitive pricing under same quality level, especially for long-term cooperation.
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