Shandong Huichi Industry and Trade Co.,Ltd.
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We Huichi petro specialize in thread plug gauge, ring gauge, go no go gauge.
Our thread gauges are manufactured according to API 5B, API 7-2 & API 11B standard, including working gages and master gages.
All of our working gauges will be inspected by master gauges after production and corresponding Calibration Certificate will be provided together with thread gauges or separately couriered as clients’ request.
They are mostly used to inspect thread of tubing, casing, drill pipe, drill collar, line pipe, sucker rod & polished rod, etc.
The thread type includes: EUE/UPTBG, NUE/TBG, BTC/BCSG, STC/CSG, LTC/LCSG, REG, IF, FH, NC, LP, NPT, etc.
1. First, clean sheets and impurities must be cleaned before the thread plug gauge and the measured thread are positive, then the thumb and forefinger rotate the ring gauge, so that the thread in the free state can be determined according to the full length of the thread, otherwise it will not be able to determine.
2. After the use of the relevant inspection and metrological institutions inspection and metrology qualified, then the screw plug gauge and the measured thread pair after, use the thumb finger and the index finger rotation ring gauge, screw thread length within 2 pitch to be qualified, otherwise be judged to be non-conforming product.
1.All thread inspection after production.Excellent quality with Calibration Certificate;
2.Competitive price.Good package suitable for international transportation;
3.Nonstandard size available.We can produce an item according to your requirement.OEM and ODM are available.You can have your own brand name engraved;
4.High precision.Our product is produce by professional high-technology machine;
5.Suitable for many kinds of thread and pipes;
6.Fast lead time and sometimes some commonly used thread may be in stock.
Oilfield Well Drilling , Energy , Mining.
| API Spec 5B (Plug Gauge & Ring Gauge) | ||||
|---|---|---|---|---|
|
| Normal Size | Thread | ||
| Applications | From | To | TPI | TPF |
| Casing – Round | 4 1/2 | 13 3/8 | 8 | 3/4 |
| Line Pipe | 1/8 | 13 3/8 | 8-27 | 3/4 |
| Tubing - Non Upset | 1.050 | 3 1/2 | 10 | 3/4 |
| 4 | 4 1/2 | 8 | 3/4 | |
| Tubing - External Upset | 1.050 | 1.900 | 10 | 3/4 |
| 2 3/8 | 4 1/2 | 8 | 3/4 | |
| Tubing - Integral Joint | 2 3/8 | 4 1/2 | 10 | 3/4 |
| Extreme Line Casing | 5 | 7 5/8 | 6 | 1 1/2 |
| 8 5/8 | 10 3/4 | 8 | 1 1/4 | |
| API Spec 7-2 (Plug Gauge & Ring Gauge) | ||||
|---|---|---|---|---|
|
| Normal Size | Thread | ||
| Applications | From | To | TPI | TPF |
| NC Connections | NC 10 | NC 16 | 6 | 1 1/2 |
| NC 23 | NC 50 | 4 | 2 | |
| NC 56 | NC 77 | 4 | 3 | |
| REG (Regular Rotary Shoulder Connections) | 1 | 8 5/8 | 14-6 | 1 1/2, 2, 3 |
| FH (Full Hole) | 3 1/2 | 6 5/8 | 4-5 | 2, 3 |
| IF (Internal Flush) | 2 3/8 | 5 1/2 | 2 | 2 |
| API Spec 11B | |||
|---|---|---|---|
|
| Normal Size | Thread | |
| Applications | From | To | TPI |
| Sucker Rods P2-P8 & B2-B6 | 1/2 | 1 1/8 | 10 |
| Sucker Rods P1-P8 & B1-B6 | 1/2 | 1 1/8 | 10 |
Iron box or iron frame , or customized according to customer requirements , or according to customer requirements.
100% tested before delivery.
Express, truck , train , air , sea , or customized according to customer requirements.
Shandong Huichi Petroleum Equipment Co.,Ltd. is a professional supplier of drilling equipment for the oil and gas industry.
Our Huichi products cover all aspects of drilling , operations , oil production , etc. We have rich experience in the production and export of oil drilling supporting equipment.
One-stop drilling equipment supply;
More than 10 years of experience in drilling equipment supply;
More than 10 people engaged in export business;
More than 40 partner countries and regions;
More than 200 customers having close cooperative relationships;
More than 250+ partner factories as suppliers.