• 4" Brass Gas Ball Valve
4" Brass Gas Ball Valve

4" Brass Gas Ball Valve

Product Details:

Place of Origin: China
Brand Name: Double-Lin
Certification: AGA, EN331, CE, EAC
Model Number: LL1071

Payment & Shipping Terms:

Minimum Order Quantity: 0
Price: 0
Packaging Details: Double-Lin standard packing
Delivery Time: within 7 days
Payment Terms: L/C, D/A, D/P, T/T
Supply Ability: 50,000 pcs
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Detail Information

Item: Gas Ball Valve Size: 1/4"-4"
Brass Material: Hpb 57-3 Connection Type: Female X Female Long Threads
Handle Material: Iron Handle Type: Lever
Stem Type: Double O-ring Stem Material: Brass
Seal Material: PTFE Working Pressure: 5 Bar (72.5 Psi)
Opening/closing Test: 10,000 Times Thread: ISO228(equivalent To DIN259 And BS2779)
Working Temperature: -10 ℃-80 ℃ (14℉-176℉)
High Light:

72.5 psi Brass Gas Ball Valve


Hpb 57-3 Brass Gas Ball Valve


4 inch gas valve

Product Description

1/4 " to 4 " Female x Female Long Threads 72.5 psi Brass Gas Ball Valve




Working Pressure 5bar (72.5 psi)

Working Temperature from -10 ℃ to +80 ℃ (from 14℉ to 176℉)

Thread ISO228(equivalent to DIN259 and BS2779)

Opening/closing Test 10,000 times




​Brass Valve Body: High-density forging, no blister, no air holes, no leakages. Made by special high precision CNC machines.

Brass Bonnet: High-density forging, no blister, no air holes, no leakages. Made by special high precision CNC machines.

Valve Ball: Smooth and wear resisting, with good sealing performance.

Brass Valve Stem: Made of hot rolled brass, high tensile strength, good toughness, long-term use without deformation, fracture.

Ball Seat: Made by pure PTFE(polytetrafluoroethylene), with high elasticity and wear resistance, is not easy aging.

Handle: Plated with dacromet, the surface is coated against corrosion, the coating is thickened, the thickness is up to 1.3mm, comfortable using.

O-ring: made of imported raw material,special for gas, small friction coefficient, long service life and not easy to leak.

Stainless Steel Locknut: Internal design of anti-loose, can be used for long time.


Technical Specification


4" Brass Gas Ball Valve 0


  1. Female x Female Long Threads Brass Gas Ball Valves with Iron flat lever handle.
  2. The thread, color of handle, materials, etc. can be customized.

Dimension mm

1/4" 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" 2-1/2" 3" 4"


45 45.8 59.4 67 77 93 99 117 143 165 190
B 23 23 29.5 35.5 42.7 53 63 79 102.5 120.5 144.5
C 39.2 39.8 54.2 57.6 60.6 75.8 81.3 88.5 121.5 129.5 141
D 87 87 95 95 126 140 140 165 224 224 283.5
E 9 10 14.8 19 24 30.2 37 47 62 74 90
PN 5 5 5 5 5 5 5


5 5 5



Materials of Parts


No. Part Materials
1 Body Brass


3 Ball Brass
4 Seal PTFE
5 Stem Brass
6 O ring NBR
7 Handle steel
8 Nut Stainless Steel


Reminding: Ball valves in yellow handle can be only used in all types of gas, town gas (1st famlily), natural gas (2nd family), and liquid gas (3rd family). They are not allowed to be used in any water and air systems.


Certificates of LL1071


4" Brass Gas Ball Valve 14" Brass Gas Ball Valve 24" Brass Gas Ball Valve 34" Brass Gas Ball Valve 4



Company Profiles


Double-Lin, which was established in 2000 in China, is a manufacturing company for global market. Double-Lin products with self-owned brand are widely distributed to more than 100 countries and regions, and Chinese domestic market. Chairman Mr. Lin Hailin adopts strategic adjustment of industrial layout, the business scope is integrated into a comprehensive solution provider, including four major areas such as public buildings and household water control system, public buildings and home heating system, transportation and use of gas safety system, family bathroom hardware solutions, covering nearly 10,000 kinds of products and specifications.


Our Package Details


4" Brass Gas Ball Valve 5

4" Brass Gas Ball Valve 6

1. Double-Lin logo forged in valve body.

2. Double-Lin logo stamped or printed on handle.

3. Inner box material is a 3-layer corrugated bond paper, with clear & attractive printing.

4. Product guarantee certificate

5. PE plastic ECO bag.

6. Product spec. label sticked on the side of master carton.

7. Double-Lin special packing tape.

8. Master carton material is a 5-layer corrugated bond paper, with clear & attractive printing.

9. 2pcs of non-woven bags inside.

10. 1 copy of instruction manual inside.





Q: How long is your product guarantee period?

A: We have three-year guarantee and 24 hours full-time service.


Q: What is your MOQ?

A: We have no MOQ. We have a large warehouse and we promise "Instant Order, Immediate Delivery and No MOQ".


Q: Can you accept OEM?

A: Double-Lin is a company with self-owned brand, and we are promoting our brand in the world, so we will not accpet OEM.


Q: How long is your delivery time?

A: For the items if we have enough stocks, we can send to you immediately. For mass production, we can promise 30-35 days.

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