BLACKMER STX2A 2″ 316 SS Sliding Vane Pump PTFE Seals Weld Flange Double Shaft

SKU: STX2A

Weight	20 lbs
Dimensions	22 × 16 × 15 in

$17,934.84

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Quantity	Unit price	Saving
1–4	$17,934.84	0%
5–9	$17,038.10	5%
10+	$16,141.36	10%

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BLACKMER STX2A 2" 316 SS Sliding Vane Pump PTFE Seals Weld Flange Double Shaft

Specifications & product details

Item Specifications

Specification	Details
Brand	Blackmer
Model	STX2A
Product Type	Positive Displacement Sliding Vane Pump
Pump Size	2″
Construction	316 Stainless Steel
Pressure Parts	316 SS / ASTM A743 CF-8M
Connections	2″ Stainless Steel Butt-Weld Flanges
Vanes	Blackmer Non-Metallic Duravanes
Shaft	Double-Ended Shaft
Seal Type	Chemical Mechanical Seal
Seal / Elastomer Material	PTFE
Relief Valve	Internal Adjustable Stainless Steel Relief Valve
Relief Valve Spring	76–110 PSI
Maximum Differential Pressure	125 PSI / 8.6 bar
Maximum Working Pressure	175 PSI / 12.1 bar
Speed Range	150–800 RPM
Viscosity Range	0.2–990 cP
Temperature Range	-25°F to 240°F (-32°C to 115°C)
Nominal Flow Range	Approx. 7–60 GPM (27–227 L/min)
Port Orientation	Side Inlet / Top Outlet
Mounting	Pump Only (PO)
Approx. Pump Weight	70 lb
Approx. Dimensions	16.75″ L × 9.56″ W × 8.67″ H

Blackmer’s current STX documentation confirms the 316 stainless construction, Duravanes, PTFE elastomer option, 2″ butt-weld connections, 125 PSI maximum differential pressure, 175 PSI MAWP, and STX2 operating ranges

This particular pump is specified as STX2A/4/40/BE/1/H/3/0/0/0/0/W/PO and is equipped with Blackmer Duravanes, a double-ended shaft, PTFE sealing/elastomer components, stainless-steel adjustable relief valve with a 76–110 PSI spring, and 2-inch stainless-steel weld flanges.

The STX Series is designed specifically for loading and unloading both corrosive and non-corrosive fluids. Blackmer’s sliding-vane design automatically compensates for vane wear, helping maintain pump performance over its service life. The design also provides strong self-priming, suction-lift and line-stripping capabilities.

Key Features

316 stainless-steel construction for demanding chemical-transfer service
2″ stainless-steel butt-weld flanges
Heavy-duty positive-displacement sliding vane design
Genuine Blackmer non-metallic Duravanes
Double-ended shaft configuration
PTFE seals/elastomers
Adjustable stainless-steel internal relief valve
76–110 PSI relief-valve spring
External ball-bearing construction
Excellent self-priming characteristics
Strong suction-lift capability
Excellent line-stripping capability
Sliding vanes automatically compensate for wear
Designed to minimize product shear and agitation
Capable of limited dry-running associated with priming and line clearing
Vanes can be serviced without removing the entire pump from the piping system
Suitable for truck-mounted/loading and unloading applications
Pump-only configuration

Blackmer’s STX2A parts documentation specifically identifies four Duravanes, two 2″ weld flanges, PTFE flange/head components, and a 76–110 PSI relief-valve spring as available STX2A components.

Typical Applications

This STX2A is designed for clean, non-abrasive liquid and chemical transfer. Typical applications include:

Chemical transport trucks
Tanker loading and unloading
Bulk chemical transfer
Specialty chemicals
Solvents
Sulfonic acids
Liquid sugars
Vegetable oils
Latex paints
Corrosive and non-corrosive liquid handling
Tank-to-tank transfer
Applications requiring effective line stripping

Blackmer specifically identifies specialty chemicals, solvents, sulfonic acids, latex paints, liquid sugars and vegetable oils among STX applications.

Size & Shipping Information

Blackmer lists the STX2/STX1220 platform at approximately 16.75″ × 9.56″ × 8.67″ with an approximate pump weight of 70 lb.

Product details

Part / SKU	STX2A

Package includes

BLACKMER STX2A 2" 316 SS Sliding Vane Pump PTFE Seals Weld Flange Double Shaft

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.

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Shipping & availability

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