1. Thread specifications at both ends (most critical):
External thread end (metric): M25 × 1.5 (coarse thread standard pitch 1.5mm), cylindrical metric thread, used for screwing into the M25 box opening of equipment
Internal thread end (American cone tube): 3/4 “NPT, 14 teeth/inch, 60 ° American cone tube sealing thread, suitable for North American instruments, valve groups, pressure transmitters, hydraulic fittings
Note: M metric cylindrical thread ≠ NPT cone pipe thread, relying on end face O-ring to achieve sealing, the thread itself does not perform pressure sealing
2. External dimensions (industry standard):
Total length: 26~34mm (mainstream 30mm)
Effective thread engagement length: 7mm
Hexagonal wrench position: 30mm (SW30)
Installation tightening torque: 8.5 N · m
Comes with: Buna-N O-ring made of nitrile rubber, with a tightly pressed end face that is waterproof and dustproof
3. Material, protection and environmental performance:
1. Two commonly used material versions
Ordinary industrial version: brass body+nickel plating on the surface, high cost-effectiveness
Oil and gas explosion-proof and anti-corrosion version: 316 stainless steel, supporting NACE hydrogen sulfide resistance and ATEX/IECEx explosion-proof certification (Ex d IIC Gb), used for oil drilling rigs and chemical hazardous areas
2. Protection level
Sealing grade: IP68 (completely dust-proof, short-term immersion)
Pressure bearing capacity: Static pressure resistance up to 5 bar (explosion-proof shell installation condition)
3. Temperature range
Standard NBR sealing ring: -40 ℃~+100 ℃, short-term peak temperature 120 ℃
Upgrade FKM fluororubber ring: -40 ℃~+200 ℃, oil and acid resistant
Metric M25×1.5 Male to 3/4-14 NPT Female Thread Adapter，M25，3/4 NPT Specifications
| Total length | 26~34mm (mainstream 30mm) |
|---|---|
| Effective thread engagement length | 7mm |
| Hexagonal wrench position | 30mm (SW30) |
| Installation tightening torque | 8.5 N · m |
| Comes with | Buna-N O-ring made of nitrile rubber, with a tightly pressed end face that is waterproof and dustproof |
| Ordinary industrial version | brass body+nickel plating on the surface, high cost-effectiveness |
| Sealing grade | IP68 (completely dust-proof, short-term immersion) |
| Pressure bearing capacity | Static pressure resistance up to 5 bar (explosion-proof shell installation condition) |
| Standard NBR sealing ring | -40 ℃~+100 ℃, short-term peak temperature 120 ℃ |
| Upgrade FKM fluororubber ring | -40 ℃~+200 ℃, oil and acid resistant |
About the Metric M25×1.5 Male to 3/4-14 NPT Female Thread Adapter，M25，3/4 NPT
The Metric M25×1.5 Male to 3/4-14 NPT Female Thread Adapter，M25，3/4 NPT is a hydraulic & pneumatic products used in industrial automation, control and power systems. It is rated at Total length 26~34mm (mainstream 30mm), Effective thread engagement length 7mm, Hexagonal wrench position 30mm (SW30). This hydraulic & pneumatic products is supplied as new, original industrial-grade stock. Each unit is identified by manufacturer part number Metric M25×1.5 Male to 3/4-14 NPT Female Thread Adapter，M25，3/4 NPT for accurate procurement and cross-referencing.
Why source the Metric M25×1.5 Male to 3/4-14 NPT Female Thread Adapter，M25，3/4 NPT from HDE123
- Verified part number: every Metric M25×1.5 Male to 3/4-14 NPT Female Thread Adapter，M25，3/4 NPT is checked against its manufacturer specification before shipment.
- 10 confirmed technical parameters available on this page for engineering review.
- Global delivery with clear lead time and commercial invoice for B2B buyers.
- Fast B2B support: send us the equipment model or an existing part number and our engineers confirm compatibility before you order.
Ordering the Metric M25×1.5 Male to 3/4-14 NPT Female Thread Adapter，M25，3/4 NPT
To order the Metric M25×1.5 Male to 3/4-14 NPT Female Thread Adapter，M25，3/4 NPT, add it to your cart and complete checkout, or use the Request a Quote form for volume purchases and replacement / cross-reference enquiries. Lead time: typically 3–10 working days for in-stock items, subject to confirmation. Worldwide shipping is available and a commercial invoice is provided for customs.