ZHEJIANG DOUBLE-LIN VALVES CO.,LTD.
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1/4" - 4" PN25 Brass Ball Valves Female x Female Connection
Brass Ball Valves Description
Working Pressure 362.5 psi
Working Temperature from -10 ℃ to +120 ℃ (from 14℉ to 248℉)
Thread ISO228 (equivalent to DIN 259 and BS2779)
Opening/closing Test 10,000 times
Brass Ball Valves Details
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: NBR & FKM, made of imported raw material, 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.
Brass Ball Valves Technical Specification
| Dimension mm | 1/4" | 3/8" | 1/2" | 3/4" | 1" | 1-1/4" | 1-1/2" | 2" | 2-1/2" | 3" | 4" |
| A | 40 | 41 | 48.4 | 56 | 65 | 76 | 85 | 99 | 132 | 152 | 178 |
| 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 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Materials of Parts
| No. | Part | Materials |
| 1 | Body | Brass |
| 2 | Bonnet | Brass |
| 3 | Ball | Brass |
| 4 | Seal | PTFE |
| 5 | Stem | Brass |
| 6 | O ring | NBR |
| 7 | O ring | Fluorubber |
| 8 | Handle | Iron or steel |
| 9 | Nut | Stainless Steel |
Reminding: Ball valves in red handle can be only used in water services, heating and air conditioning plants, and compression air system. They are not allowed to be used in gas system.
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.