Pneumatic Mini Double Seat Mixproof Reversing Valve

Model:

Place of Origin:

Wenzhou, China

Packing:

Suitable Packing for Sea/Air Transport

Quantity:

1000 Piece/Pieces per Month

Payment:

T/T, L/C, Western Union

Medium:

Water, Oil

Material:

SS304/SS316L

Connection:

Welding

Specification:

0.5"-0.75"

Gasket:

PTFE, EPDM, NBR

Shape:

LL Type

Type:

Pneumatic

A mixproof valve separates intersecting processing lines across compact fluidic circuits without cross-contamination. Opposing internal sealing discs seat against separate counter-surfaces while an atmospheric leakage passage isolates the intersecting conduits. If a dynamic seat gasket fails under line backpressure, escaping liquid discharges downward through an open drainage port rather than migrating into active product streams.

Pilot Skid Miniaturization and Zero Stagnation Fluid Geometries

Miniature pneumatic cylinder actuators deliver millisecond linear displacement across compact fractional-inch housings, routing streams between pilot-scale bioreactors and dosing headers.

Precision CNC-machined bodies in AISI 316L stainless steel eliminate internal fluid stagnation pockets. Controlled internal transitions maintain length-to-diameter aspect ratios below 1.5, preventing particulate settlement during low-flow dosing routines.

Micro-Bore Flow Routing and Hold-Up Volume Matrix

The matrix defines hold-up volumes, stroke displacements, and drainage evacuation speeds across miniature sanitary line sizes:

Fractional Tube Diameter	Hold-Up Cavity Volume	Stroke Displacement	Pneumatic Port Size	Drain Cavity Evacuation Time
0.50 Inch (12.7 mm)	4.2 Milliliters	8.0 mm	G 1/8 Inch	0.12 seconds
0.75 Inch (19.05 mm)	9.8 Milliliters	10.5 mm	G 1/8 Inch	0.18 seconds
1.00 Inch (25.4 mm)	18.5 Milliliters	12.0 mm	G 1/4 Inch	0.25 seconds
1.25 Inch (31.75 mm)	29.0 Milliliters	14.5 mm	G 1/4 Inch	0.32 seconds

Rapid Stroke Actuation and Membrane Surge Attenuation

Micro-stroke pneumatic actuation balances rapid flow shut-off against hydraulic pressure surges, preserving downstream filtration membranes from mechanical shock. Mechanical spring cartridges provide instant fail-safe closure when pilot compressed air feeds experience pressure drops.

Deploying a double seat mixproof valve in mini format enables automated stream reversing across space-constrained chromatography skids.

Skid Compactness and Sanitary Sampling Integrity

Installing a compact double seat mixproof valve replaces multiple manual sampling cocks, lowering contamination risks during batch transfers. Elastomer selections including USP Class VI fluoropolymer and silicones maintain seal elasticity across repeated clean-in-place cycles.

Balanced plug geometries isolate line turbulence from moving stems during high-velocity cleaning loops.

Integrating a miniature mixproof valve preserves product integrity across automated sampling and micro-distribution skids.

Product Description

Material quality:	AISI304, AISI304L, AISI316, AISI316
Size:	0.5"-0.75"
Standards:	DIN, SMS, ISO, IDF, RJT, 3A, etc
Connection end:	threaded,welded,clamped
Types:	L, T, LL, LT,TL,TT