Oilfield Stainless Steel Valve Ball Seat For Sucker Rod Pump
Product Description
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Symbol Symbol Hardness Material A1 Stainless steel Ball:58-65HRC
Seat: 52-56HRCUNS 41000–UNS 44000 B1 Cobalt alloy, cast Ball: 56-63HRC
Seat: 50-56HRCCobalt, chromium, and
tungsten alloyB2 Cobalt alloy, powder
metalBall: 53-60HRC
Seat: 51-57HRCCobalt, chromium, and
tungsten alloyC1 Tungsten carbide Ball: 88-89HRA
Seat: 88-89.5HRATungsten with Cobalt
binderC3 Titanium carbide Ball: 89-90.5HRA
Seat: 89-90.5HRATungsten and titanium carbide
with cobalt binder<
NO. Specification Material 1 V11-106 Stellite 2 V11-125 Stellite 3 V11-150 Stellite 4 V11-175 Stellite 5 V11-200 Stellite 6 V11-225 Stellite 7 V11-250 Stellite 8 V11-375 Stellite NO. 1 V11-106 Tungsten carbide 2 V11-125 Tungsten carbide 3 V11-150 Tungsten carbide 4 V11-175 Tungsten carbide 5 V11-200 Tungsten carbide 6 V11-225 Tungsten carbide 7 V11-250 Tungsten carbide 8 V11-375 Tungsten carbide NO. 1 V11-106 stainless steel 2 V11-125 stainless steel 3 V11-150 stainless steel 4 V11-175 stainless steel 5 V11-200 stainless steel 6 V11-225 stainless steel 7 V11-250 stainless steel 8 V11-375 ![1.jpg]()
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each set packing 
wooden case packing
Customer inspecting
We offer you pre-sale services, after-sale services which including sales
guidance, information supply & technical support, technical drawing supply,
production planning provide, production schedule provide, inspection support
and certificate provide.
Puyang Zhongshi Group co., Ltd. was founded in 1996, which is the restructured enterprise
of Central Plains oilfield branch company of SINOPEC . The company registered capital is
60.83 million yuan, with annual output value 200 million yuan, 580 employees, including
more than 160 technical and administrative staff . Oil machinery is our main products, the
leading products include pumping unit, subsurface sucker rod pump, wellhead (Christmas
Tree), pressure vessels, drilling solid control series products and cementing accessories. We
had attained ISO 9001 in 1998 and API Certificates in 2002 .
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