Union Bonnet Needle Valves
HJZF4 Series: 6000 psig
HJZF4H Series: Working pressure up to 10000 psig
Features
- One-piece forged body
- Two- stem design: Upper stem threads cold rolled and lower stem hardened for high strength and smooth operation
- Accidental valve disassembly disabled by union bonnet construction
- Upper stem thread lubricant isolated from system media
- Linear instead of rotary movement of the rising, non-rotating stem minimizes packing abrasion and reduces the friction between the seat and the tip
- Safety back seating seal in fully open position
- Panel mounting available
- Steady and durable fastening of the handle by double lock-pins
- Handles of different colors available
- Every valve leak tested with Nitrogen or compressed air (HJZF4 Series) at the maximum allowable working pressure or with water (HJZF4H Series) at 1.1 times the maximum allowable pressure
- Working pressure up to:HJZF4 Series---Stainless steel: 6000 psig (414 bar)Alloy C-276: 6000 psig (414 bar)
Alloy 400: 5000 psig (345 bar)
HJZF4H Series Stainless steel: 10000 psig (690 bar) - Working temperature: PTFE: -65°F to 450°F (-54°C to 232°C)
PEEK: -65°F to 500°F (-54°C to 260°C)
Graphite: -65°F to 1200°F (-54°C to 649°C)
Item | Component | Valve Body Material | ||
| 316 SS | Alloy 400 | Alloy C-276 | ||
| Material Grade/ASTM Specification | ||||
1 | Handle | Anodized aluminum or stainless steel or black knob | ||
| 2 | Set Screw | 304 SS/A479 | ||
| 3 | Upper Stem | 316 SS/A479 | ||
| 4 | Packing Bolt | 304 SS/A479 | ||
| 5 | Lock Nut | 316 SS/A479 | ||
| 6 | Panel Nut | Stainless steel | ||
| 7 | Gland | 316 SS/A479 | ||
| 8 | Packing | PTFE or PEEK or graphite | ||
| 9 | Bonnet | 316 SS/A479 | Alloy 400/B164 | Alloy C-276/B574 |
| 10 | Union Nut | 316 SS/A479 | ||
| 11a 11b 11c | Lower Stem | Hardened 316 SS/A479 | Alloy 400/B164 | Alloy C-276/B574 |
| 11d | Stem | 316 SS 479 | Alloy 400/B164 | Alloy C-276/B574 |
Stem Tip | PTFE or PCTFE | |||
| 12 | Body | 316 SS/A182 | Alloy 400/B164, B127, B564 | Alloy C-276/B564 |
Seat | Same as body | |||
Lubricant | Molybdenum disulfide-based / PTFE Lubricating Grease | |||
1. Can I get a Sample?
We do provide some small specific samples accordingly based on the process we situate in.
2. Do you provide customized products?
We are good to offer customized services in terms of logo labeling, manufacturing based on samples or blueprints, etc.
3. Will communication be a problem?
Our sales team had great knowledge of our products and acquired solid English communication skills in both written and speaking; the communication can be accessed either literally or verbally via any social networking platform.
4. Payment Method.
L/C, T/T, PayPal, Western Union, etc. Principally we do not accept third-party transactions via China's mainland region channel.
5. Why Choose us?
- Quality: 100% leakage, material, and functionality test in process and before shipping.
- Variety: Highly customizable flexibility.
- Reliability:15 years of manufacturing experience.
- Efficiency: Quick& Effective response.
- Utility: Direct link from Manufacturer.
- Flexibility: OEM/ODM are provided.
- Authentication: Real-time plant audit provided.
- Competitiveness: Price is negotiable on large volumes.
