YP Petro manufactures power end components including extension rods, crossheads, crosshead pins, cross pin baffles, upper and lower guide plates, packing boxes, seal rings, and oil seal lips. We also supply crankshaft assemblies, gear sets, and connecting rods for major mud pump models.

Yes. YP Petro accepts OEM/ODM orders based on customer drawings, technical specifications, or reverse-engineered samples. Our engineering team can confirm feasibility, recommend material upgrades, and provide quotations within 3-5 working days.

What power end parts does YP Petro manufacture?

YP Petro manufactures power end components including extension rods, crossheads, crosshead pins, cross pin baffles, upper and lower guide plates, packing boxes, seal rings, and oil seal lips. We also supply crankshaft assemblies, gear sets, and connecting rods for major mud pump models.

What other fluid end parts does YP Petro supply?

In addition to cylinder liners, YP Petro supplies a complete range of fluid end parts, including pistons, piston rubber, valve bodies, valve seats, valve rubber, liner seals, cylinder head gaskets, valve cover seals, piston rods, clamp assemblies, valve covers, cylinder heads, flange heads, cylinder flanges, cylinder covers, and inhalation capsules. We also supply dampener diaphragms, pressure gauges, fittings, relief valves, and exhaust valves.

What size range of cylinder liners does YP Petro offer?

YP Petro cylinder liners are available in metric sizes from 100mm to 180mm and imperial sizes from 3" to 7.5" (including 3", 3.5", 4", 4.5", 5", 5.5", 6", 6.25", 6.5", 6.75", 7", 7.25", 7.5"). Custom sizes are available on request.

What is the difference between bi-metal, ceramic, chrome-plated, and high-frequency quenching cylinder liners?

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Home » Products » Drilling rig accessory equipment » Bop » API Annular BOP for oil & gas wellhead control equipment

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API Annular BOP for oil & gas wellhead control equipment

API Annular BOP for oil & gas wellhead control equipment

'Bolt cover' type Annular BOP features space saving design,low operating pressure and compact structure thus makes it ideal to use where space is priority. It can seal off telly, drill pipe,tool joint,drill collar,casing&tubing,wireline or any other shape of drilling tools. Stripping of pipe,tubing,and wireline through the packing element can also be accomplished at lower pressure.Awide range of sizes both in bore(from 7 1/16" to 20 3/4")and working pressure(from 3000pso up to 10000psi)are available to suit any work applications.


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Product Description

Product Description

球型防喷器1

'Bolt cover' type Annular BOP features space saving design,low operating pressure and compact structure thus makes it ideal to use where space is priority. It can seal off telly, drill pipe,tool joint,drill collar,casing&tubing,wireline or any other shape of drilling tools. Stripping of pipe,tubing,and wireline through the packing element can also be accomplished at lower pressure.Awide range of sizes both in bore(from 7 1/16" to 20 3/4")and working pressure(from 3000pso up to 10000psi)are available to suit any work applications.

Model	Bore(mm)	Working pressure(MPa/psi)	Close Volume(L)	Open Volume(L)	Dimension(mm)		Total Weight(kg)
Model	Bore(mm)	Working pressure(MPa/psi)	Close Volume(L)	Open Volume(L)	A	B	Total Weight(kg)
FHZ18-70	179.4	70/10000	36	27	1200	1250	6293
FHZ28-70	279.4	70/10000	67	66	1465	1653	12290
FHZ35-70	34601	70/10000	116	117	1554	1742	15190
FHZ43-35	425.4	35/5000	134	134	1680	1590	14100
FHZ54-14	539.7	14/2000	95.3	94.5	1380	1437	7600

bop ‘Bolt cover’ type Annular BOP Annular BOP

FAQ

Q YP Petro manufactures power end components including extension rods, crossheads, crosshead pins, cross pin baffles, upper and lower guide plates, packing boxes, seal rings, and oil seal lips. We also supply crankshaft assemblies, gear sets, and connecting rods for major mud pump models.

A
Yes. YP Petro accepts OEM/ODM orders based on customer drawings, technical specifications, or reverse-engineered samples. Our engineering team can confirm feasibility, recommend material upgrades, and provide quotations within 3-5 working days.
Q What power end parts does YP Petro manufacture?

A
YP Petro manufactures power end components including extension rods, crossheads, crosshead pins, cross pin baffles, upper and lower guide plates, packing boxes, seal rings, and oil seal lips. We also supply crankshaft assemblies, gear sets, and connecting rods for major mud pump models.
Q What other fluid end parts does YP Petro supply?

A
In addition to cylinder liners, YP Petro supplies a complete range of fluid end parts, including pistons, piston rubber, valve bodies, valve seats, valve rubber, liner seals, cylinder head gaskets, valve cover seals, piston rods, clamp assemblies, valve covers, cylinder heads, flange heads, cylinder flanges, cylinder covers, and inhalation capsules. We also supply dampener diaphragms, pressure gauges, fittings, relief valves, and exhaust valves.
Q What size range of cylinder liners does YP Petro offer?

A
YP Petro cylinder liners are available in metric sizes from 100mm to 180mm and imperial sizes from 3" to 7.5" (including 3", 3.5", 4", 4.5", 5", 5.5", 6", 6.25", 6.5", 6.75", 7", 7.25", 7.5"). Custom sizes are available on request.
Q What is the difference between bi-metal, ceramic, chrome-plated, and high-frequency quenching cylinder liners?

A
| Type | Inner Material | Hardness | Service Life | Best For |
| Bi-Metal | High-chromium cast iron | HRC 62 | 800h+ | General high-pressure, abrasive drilling |
| Ceramic | Al₂O₃ or Zirconia | HRC 80+ | 1500h+ | Extreme abrasion, high-sand formations |
| Chrome-Plated | Hard chrome coating | HRC 55 | 300-400h | Moderate conditions, budget operations |
| High-Frequency Quenching | Quenched alloy iron | HRC 50 | 200-300h | Light-duty, low-cost applications |