Blackmer TXSD2A 2″ Sliding Vane Pump PTFE/Carbon Seals PTFE Head O-Rings

Item Specifications

Blackmer’s parts documentation confirms that the TXSD2A is a double-ended-shaft pump and identifies PTFE head O-rings as part number 702242. It also documents PTFE/carbon mechanical-seal configurations for the TXD2A/TXSD2A family.

Key Features

• Heavy-duty 2-inch Blackmer sliding vane pump
• TXSD2A double-ended shaft configuration
• PTFE/Carbon/PTFE mechanical seal arrangement
• PTFE head O-rings for enhanced chemical compatibility
• Carbon rotating seal face
• Durable cast-iron pump construction
• Four replaceable Duravane vanes
• Positive-displacement sliding-vane design
• Integral adjustable pressure relief valve
• Replaceable wear components for easier servicing
• Designed for high-duty-cycle liquid-transfer applications
• Suitable for truck-mounted and stationary pumping systems
• Double-ended shaft provides additional installation/drive flexibility
• Blackmer sliding-vane design is well suited to bulk liquid loading and unloading

Blackmer documentation lists four Duravanes for the TXD2A/TXSD2A family and multiple relief-valve spring options, including 36–50, 51–75, 76–110 and 111–125 PSI; therefore, the actual relief-valve spring fitted to a used or surplus pump should be verified rather than assumed.

Seal Details

For this particular TXSD2A TEF/CAR/TEF configuration, the description indicates a PTFE O-ring, carbon seal face and PTFE seal ring. Blackmer documentation identifies the corresponding mechanical-seal configuration as using a cast-iron stationary seat, PTFE O-ring, carbon seal face and PTFE rotating seal ring.

The PTFE head O-ring is separately identified by Blackmer as P/N 702242, with two head O-rings used per pump.

Complete Description

BLACKMER TXSD2A 2″ SLIDING VANE TRANSFER PUMP – PTFE/CARBON/PTFE SEALS – PTFE HEAD O-RINGS

Offered is a Blackmer TXSD2A 2-inch positive-displacement sliding vane transfer pump configured with PTFE/Carbon/PTFE mechanical seals and PTFE head O-rings.

The TXSD2A belongs to Blackmer’s proven TX-series pump family and uses a double-ended rotor/shaft configuration. Its sliding-vane pumping principle is designed for dependable transfer of petroleum products and other liquids compatible with the pump’s construction and sealing materials.

This unit’s PTFE/Carbon/PTFE sealing arrangement provides a carbon seal face combined with PTFE sealing components. It is additionally equipped with PTFE head O-rings, making this configuration useful where PTFE compatibility is preferred over standard elastomer head seals.

The pump incorporates four replaceable Duravane vanes and an integral adjustable relief-valve assembly. Blackmer’s serviceable design allows major wear components, seals, bearings, vanes and O-rings to be replaced when required.

Highlights:

• Blackmer TX Series industrial transfer pump
• Model: TXSD2A
• 2″ nominal pump
• Positive-displacement sliding-vane design
• Double-ended shaft
• PTFE/Carbon/PTFE seal configuration
• Carbon seal face
• PTFE head O-rings
• Four Duravane vanes
• Integral adjustable relief valve
• Heavy-duty cast-iron construction
• Serviceable industrial design

Typical Applications

The TXSD2A is suitable for appropriately engineered bulk-liquid transfer installations such as:

• Tank truck loading and unloading
• Petroleum product transfer
• Fuel-oil transfer
• Bulk storage facilities
• Terminal transfer systems
• Industrial liquid-transfer skids
• Loading/unloading equipment
• Stationary pumping installations
• Mobile pumping systems

Important: Liquid compatibility must be verified against the actual pump materials and PTFE/carbon seal configuration before use. Also verify the installed relief-valve spring, flange/port configuration, rotational direction and operating requirements from the actual pump nameplate before installation.

Product details

Part / SKU	TXSD2A

Package includes

• Blackmer TXSD2A 2" Sliding Vane Pump PTFE/Carbon Seals PTFE Head O-Rings

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