SearchAsk us anythingarrow rightDoes NPT fit MIP?Yes, NPT (national pipe thread) has the same thread dimensions as an MIP (male iron pipe) and FIP (female iron pipe).Let's Get It Fixed!Our virtual experts can diagnose your issue (for free!) and resolve simple problems.Chat with a live expertChat nowCall 1 (855) 466-3948Call nowRATESHARECopy linkTwitterFacebookmagnifying glassLink copied to clipboard.SUBMIT AN ANSWERShop Recommended ProductsShop HomeX Recommended ProductsRELATED QUESTIONSDoes the expansion valve provide a fixed size restriction?Expansion valves aren't valves. They're called an Orifice Tube because they're a fixed size hole. The hole creates a drop in pressure from the high side of the air conditioning to the low side. Is this true? As necessary, the hole gets smaller and larger.Does NPT fit BSP?BSPT (British Standard Pipe Thread) is similar to the NPT, except that there are significant differences. Another important difference is that for many dimensions of the BSPT tube the thread passes is different from the NPT. Therefore, a male NPT is sometimes integrated into a set of BSPT or vice versa, but does not seal.Are MIP threads tapered?Some say MIP stands for Male Iron Pipe. Male Pipe Thread can be called the same pipe size. MIP and FIP are equivalent to Male and Female iron pipes. A straight, not tapered, thread is sometimesdesignated by the terms NPS and NPSM.Should you use Teflon tape on NPT fittings?Teflon tape is not recommended over using a liquid thread sealant. Only use one-and-a-half wraps around the male portion of the thread if you are using Teflon tape. From the end of the male portion of the fitting, start two threads.Do thermocouples need calibration?Calibration is required to make sure the temperatures are derived. Calibration for thermocouples refers to comparing one device to another with a known accuracy.Does pipe length include thread?The most common sizes of threaded pipe in home systems are 1/2 and 1/2 inch. The inside diameter is referred to as the measurement. The extra reach that goes into the fitting must be included in the length.