伺服比例閥D31FTB32CC5NF00　這種連接適用于各種壓力和溫度，在較荷刻的條件下使用時，比法蘭連接更為可靠。但是焊接連接的閥門拆卸和重新安裝都比較困難，所以它的使用限于通常能長期可靠地運(yùn)行，或使用條件荷刻、溫度較高的場合。如火力發(fā)電站、核能工程、乙烯工程的管道上。 D31FBB32CC4NG00(老型號D31FTB32CC4NG00)
D31FBB32CC4NKW0(老型號D31FTB32CC4NKW0)
D31FBB32CC4NS00(老型號D31FTB32CC4NS00)
D31FBB32CC4VF00(老型號D31FTB32CC4VF00)
D31FBB32CC4VG08(老型號D31FTB32CC4VG08)
D31FBB32CC5NF00(老型號D31FTB32CC5NF00)
D31FBB32CC5NG00(老型號D31FTB32CC5NG00)
D31FBB32CC5VF08(老型號D31FTB32CC5VF08)
D31FBB32DC1NF00(老型號D31FTB32DC1NF00)
D31FBB32DC1NKW0(老型號D31FTB32DC1NKW0)
D31FBB32DC1NS00(老型號D31FTB32DC1NS00)
D31FBB32DC4NJW0(老型號D31FTB32DC4NJW0)
D31FBB32DC4NS00(老型號D31FTB32DC4NS00)
D31FBB32EC1NKW0(老型號D31FTB32EC1NKW0)
D31FBB32EC1NS00(老型號D31FTB32EC1NS00)
D31FBB32EC1VF00(老型號D31FTB32EC1VF00)
D31FBB32EC2NF00(老型號D31FTB32EC2NF00)
D31FBB32EC2NS00(老型號D31FTB32EC2NS00)
D31FBB31CC1NF00(老型號D31FTB31CC1NF00)
D31FBB31CC1NKW0(老型號D31FTB31CC1NKW0)
D31FBB31CC1NS00(老型號D31FTB31CC1NS00)
D31FBB31CC2NF00(老型號D31FTB31CC2NF00)
D31FBB31CC2NG00(老型號D31FTB31CC2NG00)
D31FBB31CC2NM00(老型號D31FTB31CC2NM00)
D31FBB31CC4NF00(老型號D31FTB31CC4NF00)
D31FBB31CC4NG00(老型號D31FTB31CC4NG00)

　　公稱通徑在50mm以下的焊接閥門通常具有焊接插口來承接荷平面端的管道。由于承插焊接在插口與管道間形成縫隙，因而有可能使縫隙受到某些介質(zhì)的腐蝕，同時管道的振動會使連接部位疲勞，因此承插焊接的使用受到一定的限制。 D41FHB31C2NE00 派克比例換向閥 D41FHB31C2NE0048
D41FHB31C2NE00807 派克比例換向閥 D41FHB31C2NE0048X807
D41FHB31C4NB00 派克比例換向閥 D41FHB31C4NB0048
D41FHB31C4NE00 派克比例換向閥 D41FHB31C4NE0048
D41FHB31C4VB00 派克比例換向閥 D41FHB31C4VB0048
D41FHB31E1NB00 派克比例換向閥 D41FHB31E1NB0048
D41FHB31E1NB08 派克比例換向閥 D41FHB31E1NB0848
D41FHB31E1NE00 派克比例換向閥 D41FHB31E1NE0048
D41FHB31E1NS00 派克比例換向閥 D41FHB31E1NS0048
D41FHB31E2NB08 派克比例換向閥 D41FHB31E2NB0848
D41FHB31E2NS00 派克比例換向閥 D41FHB31E2NS0048
D41FHB31E4NB00 派克比例換向閥 D41FHB31E4NB0048
D41FHB31E4NB08 派克比例換向閥 D41FHB31E4NB0848
D41FHB31E4NE00 派克比例換向閥 D41FHB31E4NE0048
D41FHB31F1NB00 派克比例換向閥 D41FHB31F1NB0048
D41FHB31F1NE00 派克比例換向閥 D41FHB31F1NE0048
D41FHB31F1NS00 派克比例換向閥 D41FHB31F1NS0048
D41FHB31F2NB00 派克比例換向閥 D41FHB31F2NB0048
D41FHB31F2NB08 派克比例換向閥 D41FHB31F2NB0848
D41FHB31F2NE00 派克比例換向閥 D41FHB31F2NE0048
D41FHB31F2NS00 派克比例換向閥 D41FHB31F2NS0048
D41FHB31F2VB00 派克比例換向閥 D41FHB31F2VB0048
D41FHB31F4NB00 派克比例換向閥 D41FHB31F4NB0048
D41FHB31F4NE00 派克比例換向閥 D41FHB31F4NE0048
D41FHB31F4VB00 派克比例換向閥 D41FHB31F4VB0048
D41FHB32B1NB00 派克比例換向閥 D41FHB32B1NB0048
D41FHB32B1NE00 派克比例換向閥 D41FHB32B1NE0048
D41FHB32B4NB00 派克比例換向閥 D41FHB32B4NB0048
D41FHB32B4NS00 派克比例換向閥 D41FHB32B4NS0048
D41FHB32B5NB00 派克比例換向閥 D41FHB32B5NB0048
D41FHB32C1NB00 派克比例換向閥 D41FHB32C1NB0048
D41FHB32C1NE00 派克比例換向閥 D41FHB32C1NE0048
D41FHB32C1NS00 派克比例換向閥 D41FHB32C1NS0048
D41FHB32C2NB00 派克比例換向閥 D41FHB32C2NB0048
D41FHB32C2NE00 派克比例換向閥 D41FHB32C2NE0048
D41FHB32C2VB00 派克比例換向閥 D41FHB32C2VB0048
D41FHB32C4NB00 派克比例換向閥 D41FHB32C4NB0048
D41FHB32C4NS00 派克比例換向閥 D41FHB32C4NS0048
D41FHB32C5NS00 派克比例換向閥 D41FHB32C5NS0048
D41FHB32C5VS00 派克比例換向閥 D41FHB32C5VS0048
D41FHB32E1NB00 派克比例換向閥 D41FHB32E1NB0048
D41FHB32E1NB08 派克比例換向閥 D41FHB32E1NB0848
D41FHB32E1NE00 派克比例換向閥 D41FHB32E1NE0048
D41FHB32E1NS00 派克比例換向閥 D41FHB32E1NS0048
D41FHB32E1VB00 派克比例換向閥 D41FHB32E1VB0048

　　在公稱直徑較大，使用條件荷刻，溫度較高的場合，閥體常采用坡口對焊接，同時，對焊接縫有原格要求，必須選用技術(shù)過硬的焊工完成此項工作。  D41FHB61B2NB00 派克比例換向閥 D41FHB61B2NB0048
D41FHB61B4NB00 派克比例換向閥 D41FHB61B4NB0048
D41FHB61B4NB20 派克比例換向閥 D41FHB61B4NB2048
D41FHB61B4VB00 派克比例換向閥 D41FHB61B4VB0048
D41FHB61C1NB00 派克比例換向閥 D41FHB61C1NB0048
D41FHB61C1NS00 派克比例換向閥 D41FHB61C1NS0048
D41FHB61C2NB00 派克比例換向閥 D41FHB61C2NB0048
D41FHB61C2NE00 派克比例換向閥 D41FHB61C2NE0048
D41FHB61C4NB00 派克比例換向閥 D41FHB61C4NB0048
D41FHB61C5NB00 派克比例換向閥 D41FHB61C5NB0048
D41FHB61E1NE00 派克比例換向閥 D41FHB61E1NE0048
D41FHB61E2NB00 派克比例換向閥 D41FHB61E2NB0048
D41FHB61E4NB00 派克比例換向閥 D41FHB61E4NB0048
D41FHB61E4NS00 派克比例換向閥 D41FHB61E4NS0048
D41FHB61F1NB00 派克比例換向閥 D41FHB61F1NB0048
D41FHB61F1VB00 派克比例換向閥 D41FHB61F1VB0048
D41FHB61F2NB00 派克比例換向閥 D41FHB61F2NB0048
D41FHB61F2NE00 派克比例換向閥 D41FHB61F2NE0048
D41FHB61F2VB00 派克比例換向閥 D41FHB61F2VB0048
D41FHB61F4NB00 派克比例換向閥 D41FHB61F4NB0048
D41FHB61F4VB00 派克比例換向閥 D41FHB61F4VB0048
D41FHB61F5NB00 派克比例換向閥 D41FHB61F5NB0048
D41FHB63B1NB00 派克比例換向閥 D41FHB63B1NB0048
D41FHB63B4NB20 派克比例換向閥 D41FHB63B4NB2048
D41FHB63C4NB00 派克比例換向閥 D41FHB63C4NB0048
D41FHB63C4NB20 派克比例換向閥 D41FHB63C4NB2048
D41FHB63E1NB00 派克比例換向閥 D41FHB63E1NB0048
D41FHB63E2NB00 派克比例換向閥 D41FHB63E2NB0048
D41FHB63E4NB20 派克比例換向閥 D41FHB63E4NB2048
D41FHB63F4NB00 派克比例換向閥 D41FHB63F4NB0048
D41FHB63F5NB00 派克比例換向閥 D41FHB63F5NB0048
D41FHB83F2NB00 派克比例換向閥 D41FHB83F2NB0048
D41FHB83F4NB00 派克比例換向閥 D41FHB83F4NB0048
D41FHB83F5NB00 派克比例換向閥 D41FHB83F5NB0048
D41FHE52B1NB00 派克比例換向閥 D41FHE52B1NB0048